HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu
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- HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 1
HP 6125XLG Blade Switch Layer 3-IP Routing Configuration Guide Part number: 5998-3719 Software version: Rlease 2306 Document version: 6W100-20130912 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 2
, or use of this material. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 3
Configuring the maximum number of ECMP routes 4 Displaying and maintaining a routing table 4 Configuring static routing 6 Configuring a static route 6 Configuring configuration example (indirect next hop 14 Static route FRR configuration example 17 Configuring a default route 19 Configuring - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 4
split horizon and poison reverse 29 Configuring the maximum number of ECMP routes 29 Enabling zero field check on incoming RIPv1 messages 30 Enabling source IP address check on incoming RIP updates 30 Configuring RIPv2 message authentication 31 Configuring the RIP packet sending rate 31 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 5
a summary route 85 Configuring an OSPF stub area 88 Configuring an OSPF NSSA area 91 Configuring OSPF DR election 93 Configuring OSPF virtual links 97 Configuring OSPF GR 99 Configuring BFD for OSPF 101 Configuring OSPF FRR 104 Troubleshooting OSPF configuration 106 No OSPF neighbor - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 6
118 Specifying a preference for IS-IS 119 Configuring the maximum number of ECMP routes 119 Configuring IS-IS route summarization 120 Advertising a default route 120 Configuring IS-IS route redistribution 121 Configuring IS-IS route filtering 121 Configuring IS-IS route leaking 122 Tuning and - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 7
Configuring the default local preference 194 Configuring the MED attribute 195 Configuring the NEXT_HOP attribute 199 Configuring the AS_PATH attribute 201 Tuning and optimizing BGP networks 206 Configuring the keepalive interval and hold time 206 Configuring the interval for sending updates - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 8
example 248 BGP GR configuration example 252 BFD for BGP configuration example 253 IPv6 BGP configuration examples 257 IPv6 BGP basic configuration example 257 IPv6 BGP route reflector configuration example 260 BFD for IPv6 BGP configuration example 263 Troubleshooting BGP 267 Symptom 267 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 9
290 Tuning and optimizing the RIPng network 290 Configuring RIPng timers 290 Configuring split horizon and poison reverse 291 Configuring zero field check on RIPng packets 291 Configuring the maximum number of ECMP routes 292 Configuring RIPng GR 292 Displaying and maintaining RIPng 293 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 10
349 Configuring a continue clause 350 Displaying and maintaining the routing policy 351 Routing policy configuration examples 351 Applying a routing policy to IPv4 route redistribution 351 Applying a routing policy to IPv6 route redistribution 354 Support and other resources 357 Contacting HP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 11
Subscription service 357 Related information 357 Documents 357 Websites 357 Conventions 358 Index 360 ix - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 12
3-IP Services Configuration Guide. Table static route is manually configured by an administrator. • Dynamic route-A dynamic route is dynamically discovered by a routing protocol. To view brief information about a routing table, use the display ip routing-table command - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 13
Examples include RIPng, OSPFv3, IPv6 BGP, and IPv6 IS-IS. An AS refers to a group of routers that use the same routing policy and work . You can configure a preference for each static route and each dynamic routing protocol. The following table lists the route types and default preferences. The - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 14
static routing, RIP, RIPng, OSPF, OSPFv3, BGP, IPv6 BGP, IS-IS, and IPv6 IS-IS support ECMP load sharing. Route backup Route backup can improve network availability. Among multiple routes to the same destination, , see the respective chapters on those routing protocols in this configuration guide. 3 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 15
Configure the maximum number of ECMP routes. 3. (Optional.) Display the maximum number of ECMP routes. Command system-view max-ecmp-num number display max-ecmp-num Remarks N/A By default, the maximum number [ verbose ] Display information about routes installed by a protocol. display ip routing- - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 16
Task Display information about routes installed by an IPv6 protocol. Display IPv6 route statistics. Clear IPv6 route statistics. Command display ipv6 routing-table [ vpn-instance vpn-instance-name ] protocol protocol [ inactive | verbose ] display ipv6 routing-table [ vpn-instance vpn-instance-name - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 17
track, see High Availability Configuration Guide. To configure a static route: Step Command 1. Enter system view. system-view 2. Configure a static route. • Method 1: ip route-static dest-address { mask | mask-length } { next-hop-address [ track track-entry-number ] | interface-type interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 18
For more information about BFD, see High Availability Configuration Guide. Bidirectional control mode To use BFD bidirectional control Configure BFD control mode for a static route. Command system-view • Method 1: ip route-static dest-address { mask | mask-length } interface-type interface-number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 19
-ip ip-address packets. By default, the source address of echo packets is not configured. For more information about this command, see High Availability Command Reference. • Method 1: ip route-static dest-address { mask | mask-length } interface-type interface-number next-hop-address bfd echo - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 20
Step 1. Enter system view. Command system-view 2. Configure the source address of BFD echo packets. bfd echo-source-ip ip-address Remarks N/A By default, the source address of BFD echo packets is not configured. For more information about this command, see High Availability Command Reference. 9 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 21
-address [ backup-interface interface-type interface-number [ backup-nexthop backup-nexthop-address ] ] ] [ permanent ] Remarks Use either method. By default, static route FRR is not configured. Displaying and maintaining static routes Execute the display command in any view. Task Display static - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 22
255.0 1.1.5.6 # Configure a default route on Switch C. system-view [SwitchC] ip route-static 0.0.0.0 0.0.0.0 1.1.5.5 3. Configure the default gateways of Host table Status : Summary Count : 0 # Use the ping command on Host B to test the reachability of Host A (Windows XP runs - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 23
1ms, Average = 1ms # Use the tracert command on Host B to test the reachability of Host Switch B. Enable BFD for both routes. Configure a static route to subnet 120.1.1.0/24 and a static route to subnet 121.1.1.0/24 on Switch C. When the link between Switch A and Switch B through the Layer 2 switch - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 24
10 12.1.1.1 bfd control-packet [SwitchB] ip route-static 121.1.1.0 24 vlan-interface 13 13.1.1.2 preference 65 [SwitchB] quit # Configure static routes on Switch C. system-view [SwitchC] ip route-static 120.1.1.0 24 13.1.1.1 [SwitchC] ip route-static 121.1.1.0 24 10.1.1.102 Verifying - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 25
a route to 2.2.2.9/32, with the output interface VLAN-interface 12. Configure a static route to subnet 120.1.1.0/24 on Switch A, and configure a static route to subnet 121.1.1.0/24 on Switch B. Enable BFD for both routes. Configure a static route to subnet 120.1.1.0/24 and a static route to subnet - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 26
1.1.1.9 bfd control-packet bfd-source 2.2.2.9 [SwitchB] ip route-static 121.1.1.0 24 vlan-interface 13 13.1.1.2 preference 65 [SwitchB] quit # Configure static routes on Switch C. system-view [SwitchC] ip route-static 120.1.1.0 24 13.1.1.1 [SwitchC] ip route-static 121.1.1.0 24 10.1.1.102 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 27
SourceAddr 1.1.1.9 DestAddr 2.2.2.9 State Up The output shows that the BFD session has been created. # Display the static routes on Switch A. display ip routing-table protocol static Holdtime 2000ms Interface Loop1 Summary Count : 1 Static Routing table Status : Summary - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 28
[SwitchD] ip route-static 1.1.1.1 32 vlan-interface 200 13.13.13.1 backup-interface vlan-interface 101 backup-nexthop 24.24.24.2 3. Configure static routes on Switch A. system-view [SwitchA] ip route-static 4.4.4.4 32 vlan-interface 101 24.24.24.4 [SwitchA] ip route-static 1.1.1.1 32 vlan - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 29
: Vlan-interface200 BkInterface: Vlan-interface100 # Display route 1.1.1.1/32 on Switch D to view the backup next hop information. [SwitchD] display Process ID: 0 Age: 04h20m37s Preference: 60 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 13.13.13.1 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 30
. For example, an upstream router running OSPF can generate a default route and advertise it to other routers, which install the default route with the next hop being the upstream router. For more information, see the respective chapters on these routing protocols in this configuration guide. 19 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 31
router to the destination. • Route time-Time elapsed since the last update. The time is reset to 0 when the routing entry is updated. • Route tag-Used for route control. For more information, see "Configuring routing policies." Routing loop prevention RIP uses the following mechanisms to prevent - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 32
2 Protocol Applicability Statement • RFC 1724, RIP Version 2 MIB Extension • RFC 2082, RIPv2 MD5 Authentication • RFC 2091, Triggered Extensions to RIP to Support Demand Circuits • RFC 2453, RIP Version 2 RIP configuration task list Tasks at a glance Configuring basic RIP: • (Required.) Enabling RIP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 33
a default route • Configuring received/redistributed route filtering • Configuring a preference for RIP • Configuring RIP route redistribution (Optional.) Tuning and optimizing RIP networks: • Configuring RIP timers • Configuring split horizon and poison reverse • Configuring the maximum number of - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 34
interfaces Step 1. Enter system view. 2. Enter RIP view. Command system-view rip [ process-id ] [ vpn-instance vpn- ports. N/A N/A By default, a RIP-enabled interface can receive RIP messages. By default, a RIP-enabled interface can send RIP messages. Configuring a RIP version You can configure - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 35
. N/A N/A By default, no interface-specific configure additional routing metrics: Step 1. Enter system view. 2. Enter interface view. 3. Specify an inbound additional routing metric. 4. Specify an outbound additional routing metric. Command system-view interface interface-type interface-number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 36
advertise the summary route instead of the more specific routes. To configure a summary route: Step Command 1. Enter system view. system-view 2. Enter RIP view. interface-number 6. Configure a summary route. rip summary-address ip-address { mask | mask-length } Remarks N/A N/A By default, - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 37
interface view. quit interface interface-type interface-number 6. Configure the RIP interface to rip default-route { { only | advertise a default route. originate } [ cost cost ] | no-originate } N/A N/A By default, a RIP interface can advertise a default route if the RIP process is enabled - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 38
-list prefix-list-name } export [ protocol [ process-id ] | interface-type interface-number ] Remarks N/A N/A By default, the filtering of received routes is not configured. This command filters received routes. Filtered routes are not installed into the routing table or advertised to neighbors. By - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 39
from another routing protocol. 4. (Optional.) Configure a default cost for redistributed routes. Command Remarks system-view N/A rip [ process-id enters the suppressed state. A suppressed route can be replaced by an updated route that is received from the same neighbor before the suppress timer - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 40
Enter system view. 2. Enter interface view. 3. Enable poison reverse. Command system-view interface interface-type interface-number rip poison-reverse Remarks N/A N/A By default, poison reverse is disabled. Configuring the maximum number of ECMP routes Perform this task to implement load sharing - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 41
vpn-instance-name ] maximum load-balancing number Remarks N/A N/A By default, the maximum number of ECMP routes is the same as that configured in the max-ecmp-num command. For more information about the max-ecmp-num command, see IP Routing Command Reference. Enabling zero field check on incoming - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 42
and the maximum number of RIP packets that can be sent at each interval. Command... system-view rip [ process-id ] [ vpn-instance vpn-instance-name ] output-delay time count count Remarks N/A N/A By default, an interface sends up to three RIP packets every 20 milliseconds. Configuring RIP GR GR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 43
again and update its FIB Availability Configuration Guide. BFD Command system-view 2. Configure the source IP address of BFD echo packets. bfd echo-source-ip ip-address 3. Enter interface view. 4. Enable BFD for RIP. interface interface-type interface-number rip bfd enable Remarks N/A By default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 44
, the source address of echo packets is not configured. N/A By default, RIP FRR is disabled. Displaying and maintaining RIP Execute display commands in any view and execute reset commands in user view. Task Display RIP current status and configuration information. Display all active routes in RIP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 45
RIP process. Command display rip process-id interface [ interface-type interface-number ] display rip process-id route [ ip-address { mask | mask-length } | peer ip-address | statistics ] reset rip process-id process reset rip process-id statistics RIP configuration examples Configuring basic RIP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 46
Cost Tag Flags Sec 172.16.1.0/24 192.168.1.3 1 0 RA 19 172.17.1.0/24 192.168.1.3 1 0 RA 19 4. Configure route filtering: # Reference IP prefix lists on Switch B to filter received and redistributed routes. [SwitchB] ip prefix-list aaa index 10 permit 172.16.1.0 24 [SwitchB] ip - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 47
RIP route redistribution Network requirements As shown in Figure 8, Switch B communicates with Switch A through RIP 100 and with Switch C through RIP 200. Configure RIP 200 to redistribute direct routes and routes from RIP 100 on Switch B so Switch C can learn routes destined for 10.2.1.0/24 and 11 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 48
-rip-200] network 12.0.0.0 [SwitchB-rip-200] version 2 [SwitchB-rip-200] undo summary [SwitchB-rip-200] quit # Enable RIP 200, and configure RIPv2 on Switch C. system-view [SwitchC] rip 200 [SwitchC-rip-200] network 12.0.0.0 [SwitchC-rip-200] network 16.0.0.0 [SwitchC-rip-200] version - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 49
in Figure 9, run RIPv2 on all the interfaces of Switch A, Switch B, Switch C, Switch D, and Switch E. Switch A has two links to Switch D. The link from Switch B to Switch D is more stable than that from Switch C to Switch D. Configure an additional metric for RIP routes received from VLAN-interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 50
> system-view [SwitchD] rip 1 [SwitchD-rip-1] network 1.0.0.0 [SwitchD-rip-1] version 2 [SwitchD-rip-1] undo summary # Configure Switch E. system-view [SwitchE] rip 1 [SwitchE-rip-1] network 1.0.0.0 [SwitchE-rip-1] version 2 [SwitchE-rip-1] undo summary # Display the IP routing table on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 51
RIP to advertise a summary route Network requirements As shown in Figure 10, Switch A and Switch B run OSPF, Switch D runs RIP, and Switch C runs OSPF and RIP. Configure RIP to redistribute OSPF routes on Switch C so Switch D can learn routes destined for networks 10.1.1.0/24, 10.2.1.0/24, 10 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 52
-0.0.0.0] network 10.1.1.0 0.0.0.255 [SwitchC-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255 [SwitchC-ospf-1-area-0.0.0.0] quit [SwitchC-ospf-1] quit 3. Configure basic RIP: # Configure Switch C. [SwitchC] rip 1 [SwitchC-rip-1] network 11.3.1.0 [SwitchC-rip-1] version 2 [SwitchC-rip-1] undo summary - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 53
As shown in Figure 11, VLAN-interface 100 of Switch A and Switch C runs RIP process 1. VLAN-interface 200 of Switch A runs RIP process 2. VLAN-interface 300 of Switch C and VLAN-interface 200 and VLAN-interface 300 of Switch B run RIP process 1. Configure a static route destined for 100.1.1.1/24 and - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 54
SwitchB-rip-1] version 2 [SwitchB-rip-1] undo summary [SwitchB-rip-1] network 192.168.2.0 [SwitchB-rip-1] network 192.168.3.0 [SwitchB-rip-1] quit # Configure Switch C. system-view [SwitchC] rip 1 [SwitchC-rip-1] version 2 [SwitchC-rip-1] undo summary [SwitchC-rip-1] network 192.168.1.0 43 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 55
-rip-1] import-route static [SwitchC-rip-1] quit 3. Configure BFD parameters on VLAN-interface 100 of Switch A. [SwitchA] bfd session init-mode active [SwitchA] ID: 1 Age: 04h20m37s Preference: 100 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 192.168.1.2 OrigNextHop: 192.168 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 56
FRR Network requirements As shown in Figure 12, Switch S, Switch A, and Switch D run RIPv2. Configure RIP FRR so that when Link A fails, services can be switched to Link B immediately. Figure 12 Network diagram Configuration procedure 1. Configure IP addresses and subnet masks for interfaces on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 57
12.2 [SwitchS-route-policy-frr-10] quit [SwitchS] rip 1 [SwitchS-rip-1] fast-reroute route-policy frr [SwitchS-rip-1] quit # Configure Switch D. < Invalid Process ID: 1 Age: 04h20m37s Preference: 100 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 13.13.13.2 OrigNextHop: 13.13. - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 58
TableID: 0x2 NBRID: 0x26000002 AttrID: 0xffffffff Flags: 0x1008c Label: NULL BkLabel: NULL Tunnel ID: Invalid BkTunnel ID: Invalid State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 13.13.13.1 OrigNextHop: 13.13.13.1 RealNextHop: 13.13.13.1 BkNextHop: 24.24.24.2 Interface: Vlan - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 59
Configuring OSPF Open Shortest Path First (OSPF) is a link-state IGP developed by the OSPF working group of the IETF. OSPF version 2 is used for IPv4. OSPF refers to OSPFv2 throughout this chapter. Overview OSPF offers the following features: • Wide scope-Supports • Link state update (LSU)-Transmits - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 60
boundaries between areas are routers rather than links. A network segment (or a link) can only reside in one area as shown in Figure 13. You can configure route summarization on ABRs to reduce the number of LSAs advertised to other areas and minimize the effect of topology changes. 49 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 61
take effect. The non-backbone area is called a transit area. In Figure 14, Area 2 has no direct physical link to the backbone area 0. You can configure a virtual link between the two ABRs to connect Area 2 to the backbone area. Figure 14 Virtual link application 1 Virtual links can also be used to - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 62
route in a Type-3 LSA so that the routers in the area can reach external networks through the default route. To further reduce the routing table size and advertised LSAs, you can configure the stub area as a totally stub area. The ABR of a totally stub area does no advertise inter-area routes - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 63
• Internal router-All interfaces on an internal router belong to one OSPF area. • ABR-Belongs to more than two areas, one of which must be the backbone area. ABR connects the backbone area to a non-backbone area. An ABR and the backbone area can be connected through a physical or logical link. • - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 64
sends them to other routers in update packets. • Each OSPF router collects Ethernet or FDDI, OSPF considers the network type as broadcast by default manually configured. On a P2MP network, OSPF packets are multicast by default, and you can configure mechanisms can solve this problem. • DR-Elected to - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 65
called "DROthers." They do not establish adjacencies with one another, so the number of adjacencies is reduced. The role of a router is subnet (or or DROther on another interface. In Figure 18, solid lines are Ethernet physical links, and dashed lines represent OSPF adjacencies. With the DR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 66
cost for an interface • Configuring the maximum number of ECMP routes • Configuring OSPF preference • Configuring OSPF route redistribution { Configuring OSPF to redistribute routes from another routing protocol { Configuring OSPF to redistribute a default route { Configuring default parameters for - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 67
• Disabling interfaces from receiving and sending OSPF packets • Configuring stub routers • Configuring OSPF authentication • Adding the interface MTU into DD packets • Configuring the maximum number of external LSAs in LSDB • Configuring OSPF exit overflow interval • Enabling compatibility with RFC - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 68
more information about VPN, see MCE Configuration Guide. Configuration procedure To enable OSPF: Step 1. Enter system view. Command system-view Remarks N/A 2. (Optional.) Configure a global router ID. router id router-id By default, no global router ID is configured. If no global router ID - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 69
as a stub stub area. [ default-route-advertise-always By default, no stub area is configured. | no-summary ] * 5. (Optional.) Specify a cost for the default route default-cost cost advertised to the stub area. The default setting is 1. The default-cost cost command takes effect only on the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 70
-string | plain plain-string } | retransmit seconds | simple { cipher cipher-string | plain plain-string } | trans-delay seconds ] * By default, no virtual link is configured. Configure this command on both ends of a virtual link, and the hello and dead intervals must be identical on both ends of - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 71
interface Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number Remarks N/A N/A 3. Configure the OSPF network type for the interface as broadcast. ospf network-type broadcast By default, the network type of an interface depends on the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 72
to the neighbor for neighbor relationship establishment. Configuring the P2MP network type for an interface Step Command Remarks 1. Enter system view. system-view N/A 2. Enter interface view. interface interface-type interface-number N/A By default, the network type of an interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 73
for an interface Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number 3. Configure the OSPF network type for the interface as P2P. ospf network-type p2p Remarks N/A N/A By default, the network type of an interface depends on the link - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 74
configure a summary route, the ASBR advertises only the summary route in an ASE LSA instead of more specific routes, reducing the number cost cost ] * By default, no ASBR route summarization is configured. The command takes effect only on an ASBR. Configuring inbound OSPF route filtering Perform - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 75
interface cost based on the interface bandwidth and default bandwidth reference value. To configure an OSPF cost for an interface: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number 3. Configure an OSPF cost for the interface. ospf - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 76
. maximum load-balancing maximum Remarks N/A N/A By default, the maximum number of ECMP routes is the same as that configured in the max-ecmp-num command. For more information about the max-ecmp-num command, see IP Routing Command Reference. Configuring OSPF preference A router can run multiple - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 77
-policy { acl-number | prefix-list OSPF to filter redistributed ip-prefix-name } export [ protocol routes. [ process-id ] ] By default, OSPF accepts all redistributed routes. Configuring OSPF to redistribute a default route The import-route command cannot redistribute a default external route - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 78
about protocols. For example, when redistributing BGP routes, OSPF uses tags to identify AS IDs. To configure the default parameters for redistributed routes: Step 1. Enter system view. Command system-view Remarks N/A 2. Enter OSPF view. ospf [ process-id | router-id router-id | vpn-instance - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 79
To configure OSPF timers: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number interfaces is 30 seconds. The default hello interval is restored when the network type for an interface is changed. The default setting is 120 seconds. The - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 80
delay. Command system-view interface interface-type interface-number ospf trans-delay seconds Remarks N/A N/A The default setting is save bandwidth and route resources. To configure the LSA arrival interval: Step 1. Enter system view. 2. Enter OSPF view. Command system-view ospf [ process-id - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 81
interval × 2n-2 (n is the number of generation times) each time a LSA generation occurs until the maximum-interval is reached. To configure the LSA generation interval: Step 1. Enter system view. 2. Enter OSPF view. 3. Configure the LSA generation interval. Command Remarks system-view N/A ospf - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 82
-number | all } Remarks By default, an OSPF interface can receive and send OSPF packets. The silent-interface command and password for all interfaces attached to the same area must be identical. To configure OSPF authentication: Step 1. Enter system view. 2. Enter OSPF view. Command system- - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 83
its MTU into DD packets. ospf mtu-enable Remarks N/A N/A By default, the interface adds an MTU value of 0 into DD packets. Configuring the maximum number of external LSAs in LSDB Step 1. Enter system view. 2. Enter OSPF view. Command system-view ospf [ process-id | router-id router-id | vpn - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 84
Configure the OSPF exit overflow interval. Command system-view ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * lsdb-overflow-interval interval Remarks N/A N/A The default backbone area. To avoid routing loops, HP recommends enabling or disabling RFC 1583-compatibility - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 85
important events and configuring the maximum number of output traps for a specific time period. To configure OSPF network management: Step 1. Enter system view. Command system-view Remarks N/A 2. Bind OSPF MIB to an OSPF process. ospf mib-binding process-id By default, OSPF MIB is bound to - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 86
Enter system view. 2. Enter OSPF view. 3. Enable OSPF ISPF. Command system-view ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * ispf enable Remarks N/A N/A By default, OSPF ISPF is enabled. Configuring OSPF GR GR ensures forwarding continuity when a routing protocol - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 87
, non-IETF GR capability is disabled. The default setting is 120. Configuring OSPF GR Helper You can configure the IETF or non IETF OSPF GR Helper. Configuring the IETF OSPF GR Helper Step 1. Enter system view. 2. Enable OSPF and enter its view. Command system-view ospf [ process-id | router-id - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 88
GR Helper is enabled. By default, strict LSA checking for the GR Helper is disabled. Triggering OSPF GR To trigger OSPF GR, perform the following command in user view: Task Trigger OSPF GR. Command reset ospf [ process-id ] process graceful-restart Configuring BFD for OSPF BFD provides a single - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 89
1. Enter system view. Command system-view 2. Configure the source address of echo packets. bfd echo-source-ip ip-address 3. Enter interface view. 4. Enable BFD single-hop echo detection. interface interface-type interface-number ospf bfd enable echo Remarks N/A By default, the source address - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 90
Command system-view 2. Configure the source address of echo packets. bfd echo-source-ip ip-address 3. Enter interface view. interface interface-type interface-number algorithm. Remarks N/A By default, the source address of echo packets is not configured. N/A By default, the interface on which - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 91
default, the source address of echo packets is not configured. N/A By default, OSPF FRR is not configured. Displaying and maintaining OSPF Execute display commands in any view and reset commands in user ] peer [ verbose ] [ interface-type interface-number ] [ neighbor-id ] display ospf [ process- - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 92
[ process-id ] redistribution OSPF configuration examples These configuration examples only cover commands for OSPF configuration. Configuring basic OSPF Network requirements • Enable OSPF on all switches, and split the AS into three areas. • Configure Switch A and Switch B as ABRs. Figure 20 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 93
quit [SwitchB-ospf-1] area 2 [SwitchB-ospf-1-area-0.0.0.2] network 10.3.1.0 0.0.0.255 [SwitchB-ospf-1-area-0.0.0.2] quit [SwitchB-ospf-1] quit # Configure Switch C. system-view [SwitchC] router id 10.4.1.1 [SwitchC] ospf [SwitchC-ospf-1] area 1 [SwitchC-ospf-1-area-0.0.0.1] network 10 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 94
32 sec Neighbor is up for 06:03:12 Authentication Sequence: [ 0 ] Neighbor state change count: 5 # Display OSPF routing information on Switch A. [SwitchA] display ospf routing OSPF Process 1 with Router ID 10.2.1.1 Routing Tables Routing for Network Destination Cost 10.2.1.0/24 1 10.3.1.0/24 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 95
0.00% packet loss round-trip min/avg/max = 1/1/2 ms Configuring OSPF route redistribution Network requirements • Enable OSPF on all the switches. • Split the AS into three areas. • Configure Switch A and Switch B as ABRs. • Configure Switch C as an ASBR to redistribute external routes (static routes - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 96
to advertise a summary route Network requirements • Configure OSPF on Switch A and Switch B in AS 200. • Configure OSPF on Switch C, Switch D, and Switch E in AS 100. • Configure an EBGP connection between Switch B and Switch C. Configure Switch B and Switch C to redistribute OSPF routes and direct - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 97
] ospf [SwitchA-ospf-1] area 0 [SwitchA-ospf-1-area-0.0.0.0] network 11.2.1.0 0.0.0.255 [SwitchA-ospf-1-area-0.0.0.0] quit [SwitchA-ospf-1] quit # Configure Switch B. system-view [SwitchB] router id 11.2.1.1 [SwitchB] ospf [SwitchB-ospf-1] area 0 [SwitchB-ospf-1-area-0.0.0.0] network 11 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 98
] ipv4-family unicast [SwitchB-bgp-ipv4] import-route ospf [SwitchB-bgp-ipv4] import-route direct [SwitchB-bgp ipv4] quit [SwitchB-bgp] quit # Configure Switch C. [SwitchC] bgp 100 [SwitchC-bgp] peer 11.1.1.1 as 200 [SwitchC-bgp] ipv4-family unicast [SwitchC-bgp-ipv4] import-route ospf [SwitchC-bgp - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 99
0 0.0.0.0 NULL0 224.0.0.0/24 Direct 0 0 0.0.0.0 NULL0 255.255.255.255/32 Direct 0 0 127.0.0.1 InLoop0 5. Configure route summarization: # Configure route summarization on Switch B to advertise a summary route 10.0.0.0/8. [SwitchB-ospf-1] asbr-summary 10.0.0.0 8 # Display the IP routing - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 100
10.3.1.2/24 ASBR Vlan-int300 10.5.1.1/24 Switch D Configuration procedure 1. Configure IP addresses for interfaces. (Details not shown.) 2. Enable OSPF (see "Configuring basic OSPF"). 3. Configure route redistribution: # Configure Switch D to redistribute static routes. system-view - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 101
0.0.0.1 Total Nets: 6 Intra Area: 2 Inter Area: 4 ASE: 0 NSSA: 0 After the area where Switch C resides is configured as a stub area, a default route takes the place of the AS external route. # Configure the area as a totally stub area by filtering Type-3 LSAs out of the stub area. [SwitchA] ospf - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 102
, inter-area routes are removed, and only one external route (a default route) exists. Configuring an OSPF NSSA area Network requirements • Configure OSPF on all switches and split AS into three areas. • Configure Switch A and Switch B as ABRs to forward routing information between areas - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 103
the nssa command issued on Switch A (the ABR) so that Switch C can obtain a default route. • Configuring the nssa command with the keyword no-summary on Switch A can reduce the routing table size on NSSA Switches. On other NSSA Switches, you only need to configure the nssa command. # Display OSPF - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 104
NSSA area exists on Switch D. Configuring OSPF DR election Network requirements • Enable OSPF on Switches A, B, C, and D on the same network. • Configure Switch A as the DR, and configure Switch C as the BDR. Figure 25 Network diagram Configuration procedure 1. Configure IP addresses for interfaces - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 105
[SwitchC-ospf-1] area 0 [SwitchC-ospf-1-area-0.0.0.0] network 192.168.1.0 0.0.0.255 [SwitchC-ospf-1-area-0.0.0.0] quit [SwitchC-ospf-1] quit # Configure Switch D. system-view [SwitchD] router id 4.4.4.4 [SwitchD] ospf [SwitchD-ospf-1] area 0 [SwitchD-ospf-1-area-0.0.0.0] network 192.168 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 106
Neighbor is up for 00:01:28 Authentication Sequence: [ 0 ] The output shows that Switch D is the DR and Switch C is the BDR. 3. Configure router priorities on interfaces: # Configure Switch A. [SwitchA] interface vlan-interface 1 [SwitchA-Vlan-interface1] ospf dr-priority 100 [SwitchA-Vlan- - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 107
sec Neighbor is up for 00:01:41 Authentication Sequence: [ 0 ] If the neighbor state is full, Switch D has established an adjacency with the neighbor. If the neighbor state is 2-way, the two switches are not the DR or the BDR, and they do not exchange LSAs. # Display OSPF interface information - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 108
DROther means the interface is not the DR or BDR. BDR 192.168.1.3 Configuring OSPF virtual links Network requirements Configure a virtual link between Switch B and Switch C to connect Area 2 to the backbone area. After configuration, Switch B can learn routes to Area 2. Figure 26 Network diagram - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 109
: 0 ASE: 0 NSSA: 0 Area 0 has no direct connection to Area 2, so the routing table of Switch B has no route to Area 2. 3. Configure a virtual link: # Configure Switch B. [SwitchB] ospf [SwitchB-ospf-1] area 1 [SwitchB-ospf-1-area-0.0.0.1] vlink-peer 3.3.3.3 [SwitchB-ospf-1-area-0.0.0.1] quit - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 110
Total Nets: 3 Intra Area: 2 Inter Area: 1 ASE: 0 NSSA: 0 The output shows that Switch B has learned the route 10.3.1.0/24 to Area 2. Configuring OSPF GR Network requirements • As shown in Figure 27, Switch A, Switch B, and Switch C that belong to the same AS and the same OSPF routing domain are GR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 111
] enable link-local-signaling [SwitchC-ospf-100] enable out-of-band-resynchronization Verifying the configuration # After the configurations on Switch A, Switch B, and Switch C are complete and the switches are running steadily, enable OSPF GR event debugging and then restart the OSPF process using - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 112
OSPF 100 Neighbor 192.1.1.2(Vlan-interface100) from Loading to Full. The output shows that Switch A completes GR. Configuring BFD for OSPF Network requirements As shown in Figure 28, run OSPF on Switch A, Switch B, and Switch C so that they are reachable to each other at the network layer. When the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 113
-1-area-0.0.0.0] quit [SwitchA-ospf-1] quit [SwitchA] interface vlan 11 [SwitchA-Vlan-interface11] ospf cost 2 [SwitchA-Vlan-interface11] quit # Configure Switch B. system-view [SwitchB] ospf [SwitchB-ospf-1] area 0 [SwitchB-ospf-1-area-0.0.0.0] network 192.168.0.0 0.0.0.255 [SwitchB-ospf - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 114
Vlan-interface10] bfd detect-multiplier 6 Verifying the configuration # Display the BFD information on Switch A. display bfd session Total Session Num ID: 1 Age: 04h20m37s Preference: 10 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 192.168.0.100 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 115
: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 10.1.1.100 RealNextHop: 10.1.1.100 BkNextHop: N/A Interface: Vlan-interface11 BkInterface: N/A The output shows that Switch A communicates with Switch B through VLAN-interface 11. Configuring OSPF FRR Network - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 116
Configure Switch S. system-view [SwitchS] bfd echo-source-ip 1.1.1.1 [SwitchS] ip prefix-list abc index 10 permit 4.4.4.4 32 [SwitchS] route-policy frr permit node 10 [SwitchS 04h20m37s Preference: 10 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 117
on Switch D to default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 13.13.13.1 RealNextHop: 13.13.13.1 BkNextHop: 24.24.24.2 Interface: Vlan-interface200 BkInterface: Vlan-interface101 Troubleshooting OSPF configuration peer ip-address command to manually specify the neighbor. 6. At - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 118
to verify OSPF interface information. 3. Use the display ospf lsdb command to verify the LSDB. 4. Use the display current-configuration configuration ospf command to verify area configuration. If more than two areas are configured, at least one area is connected to the backbone. 5. In a stub area - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 119
IS-IS This chapter describes how to configure IS-IS for IPv4 networks. Overview Intermediate network layer address. The NSAP identifies an abstract network service access point and describes the network address format in the OSI reference model. IS-IS address format NSAP As shown in Figure - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 120
Identifies the type of service. The IDP and area must have the same area address. To support smooth area merging, partitioning, and switching, a router can have a maximum of three can be obtained in the following steps: 1. Extend each decimal number of the IP address to three digits by adding 0s from - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 121
but it can have a maximum of three NETs for smooth area merging and partitioning. When you configure multiple NETs, make sure the system IDs are the same. IS-IS area IS-IS has a 2-level hierarchy to support large-scale networks. A large-scale routing domain is divided into multiple areas. Typically - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 122
sent to the Level-2 area through a Level-1-2 router, so a Level-2 router knows the routing information of the entire IS-IS routing domain. By default, a Level-2 router does not advertise the routing information of other Level-1 areas and the Level-2 area to a Level-1 area, so a Level-1 router simply - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 123
solve this problem, IS supports the broadcast network (for example, Ethernet and Token Ring) and the point-to-point network (for example, PPP and HDLC). For an NBMA interface, such as an ATM interface, you must configure DIS L2 DIS The DIS creates and updates pseudonodes, and generates LSPs for the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 124
DIS. IS-IS PDUs PDU IS-IS PDUs are encapsulated into link layer frames. An IS-IS PDU has two parts, the headers and the variable routers. The Level-1-2 router can send both types of LSPs. SNP A sequence number PDU (SNP) describes the complete or partial LSPs for LSDB synchronization. SNPs include - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 125
default). On point-to-point networks, CSNPs are sent only during the first adjacency establishment. A PSNP only contains the sequence numbers Information Protocols Supported IP External Reachability 9542 ES-IS Routing Protocol • ISO 8348/Ad2 Network Services Access Points • RFC 1195, Use of OSI IS- - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 126
IS link cost • Specifying a preference for IS-IS • Configuring the maximum number of ECMP routes • Configuring IS-IS route summarization • Advertising a default route • Configuring IS-IS route redistribution • Configuring IS-IS route filtering • Configuring IS-IS route leaking (Optional.) Tuning and - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 127
] network-entity net quit interface interface-type interface-number isis enable [ process-id ] Remarks N/A By default, the IS-IS process is disabled. By default, NET is not assigned. N/A N/A By default, no IS-IS process is enabled. Configuring the IS level and circuit level Follow these guidelines - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 128
for an interface: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number 3. Configure P2P network type for an interface. isis circuit-type p2p Remarks N/A N/A By default, the network type of an interface depends on the physical media - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 129
-number N/A 6. (Optional.) Specify a cost for the IS-IS interface. isis cost value [ level-1 | level-2 ] By default, no cost for the interface is specified. Configuring a global IS-IS cost Step 1. Enter system view. 2. Enter IS-IS view. 3. (Optional.) Specify an IS-IS cost style. Command - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 130
-name } * Remarks N/A N/A The default setting is 15. Configuring the maximum number of ECMP routes Perform this task to implement load sharing over ECMP routes. To configure the maximum number of ECMP routes: Step 1. Enter system view. 2. Enter IS-IS view. Command system-view isis [ process-id - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 131
ECMP routes. maximum load-balancing number Remarks By default, the maximum number of ECMP routes is the same as that configured in the max-ecmp-num command. For more information about the max-ecmp-num command, see IP Routing Command Reference. Configuring IS-IS route summarization Perform this - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 132
command. 4. (Optional.) Configure the maximum number of redistributed Level import-route limit number 1/Level 2 IPv4 routes. By default, the maximum number of redistributed Level 1/Level 2 IPv4 routes is not configured. Configuring with itself as the root, and installs the routes to the IS-IS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 133
To filter redistributed routes: Step Command 1. Enter system view. Configure route import-route isis level-2 into level-1 [ filter-policy leaking from Level-2 to { acl-number | prefix-list prefix-list-name | Level-1. route-policy route-policy-name } | tag tag ] * Remarks N/A N/A By default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 134
must miss before it declares that the router is down. Command system-view interface interface-type interface-number isis timer holding-multiplier value [ level-1 | level-2 ] Remarks N/A N/A The default setting is 3. Configuring a DIS priority for an interface On a broadcast network, IS-IS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 135
the interface to send small hello packets without CLVs. Command system-view interface interface-type interface-number isis small-hello Remarks N/A N/A By default, the interface can send standard hello packets. Configuring LSP parameters Configuring LSP timers 1. Specify the maximum age of LSPs - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 136
Command system-view isis [ process-id ] [ vpn-instance vpn-instance-name ] timer lsp-max-age seconds Remarks N/A N/A The default setting is 1200 seconds. 2. Specify the LSP refresh interval and generation interval. Each router needs to refresh its LSPs at a configurable the problem, you number of - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 137
at the IP layer because they are directly encapsulated in frames. IS-IS routers in an area must send LSPs smaller than the smallest interface MTU in the area. If the IS-IS routers have different interface MTUs, HP recommends configuring the maximum size of generated LSP packets to be smaller - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 138
-interval × 2n-2 (n is the number of calculation times) each time a calculation occurs until the maximum-interval is reached. To control SPF calculation interval: Step 1. Enter system view. 2. Enter IS-IS view. 3. Configure the SPF calculation interval. Command Remarks system-view N/A isis - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 139
insufficiency, it will calculate wrong routes. To make troubleshooting easier, temporarily isolate the router from the IS-IS configured manually or dynamically. Follow these guidelines when you configure the mappings: • To view host names rather than system IDs by using the display isis lsdb command - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 140
is-name sys-name quit interface interface-type interface-number 6. Configure a DIS name. isis dis-name symbolic-name Remarks N/A N/A By default, no host name is specified for the router. N/A N/A By default, no DIS name is configured. This command takes effect only on a router enabled with dynamic - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 141
of neighbor state changes. Command log-peer-change Remarks By default, the logging of password at both ends must be identical. To configure neighbor relationship authentication: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 142
| level-2 ] [ ip | osi ] By default, no authentication is configured. Configuring area authentication Area authentication prevents the router from installing routing information from untrusted routers into the Level-1 LSDB. The router encapsulates the authentication password in the specified mode - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 143
and password. Command domain-authentication-mode { md5 | simple | gca key-id { hmac-sha-1 | hmac-sha-224 | hmac-sha-256 | hmac-sha-384 | hmac-sha-512 } } { cipher cipher-string | plain plain-string } [ ip | osi ] Remarks By default, no routing domain authentication is configured. Configuring IS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 144
Guide. To configure BFD for IS-IS: Step 1. Enter system view. 2. Enter interface view. Command system-view interface interface-type interface-number Remarks N/A N/A 3. Enable IS-IS on an interface. isis enable [ process-id ] N/A 4. Enable BFD on an IS-IS interface. isis bfd enable By default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 145
is not configured. N/A By default, IS-IS FRR is disabled. Configuring IS-IS FRR using a routing policy You can use the apply fast-reroute backup-interface command to specify a backup next hop in a routing policy for routes matching specific criteria, and perform this task to reference the routing - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 146
Displaying and maintaining IS-IS Execute display commands in any view and the reset command in user view. Task Command Display brief IS-IS configuration information. display isis brief [ process-id ] Display the IS-IS GR status. display isis graceful-restart status [ level-1 | level-2 ] [ - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 147
.0002.00 [SwitchB-isis-1] quit [SwitchB] interface vlan-interface 200 [SwitchB-Vlan-interface200] isis enable 1 [SwitchB-Vlan-interface200] quit # Configure Switch C. system-view [SwitchC] isis 1 [SwitchC-isis-1] network-entity 10.0000.0000.0003.00 [SwitchC-isis-1] quit [SwitchC] interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 148
quit [SwitchD] interface vlan-interface 300 [SwitchD-Vlan-interface300] isis enable 1 [SwitchD-Vlan-interface300] quit Verifying the configuration # Display the IS-IS LSDB on each switch to verify the LSPs. [SwitchA] display isis lsdb Database information for IS-IS(1 Level-1 Link State Database - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 149
.0004.01-00* 0x00000002 0xec96 1007 55 0/0/0 *-Self LSP, +-Self LSP(Extended), ATT-Attached, P-Partition, OL-Overload # Display the IS-IS routing information on each switch. 138 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 150
[SwitchA] display isis route Route information for IS-IS(1 Level-1 IPv4 Forwarding Table IPv4 Destination IntCost ExtCost ExitInterface NextHop Flags 10.1.1.0/24 10 NULL Vlan100 Direct D/L/- 10.1.2.0/24 20 NULL Vlan100 10.1.1.1 R/-/- 192.168.0.0/24 20 NULL Vlan100 10.1.1.1 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 151
broadcast network (Ethernet). Switch A and Switch B are Level-1-2 switches, Switch C is a Level-1 switch, and Switch D is a Level-2 switch. Change the DIS priority of Switch A to make it elected as the Level-1-2 DIS router. Figure 38 Network diagram Configuration procedure 1. Configure IP addresses - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 152
.0000.0000.0002.00 [SwitchB-isis-1] quit [SwitchB] interface vlan-interface 100 [SwitchB-Vlan-interface100] isis enable 1 [SwitchB-Vlan-interface100] quit # Configure Switch C. system-view [SwitchC] isis 1 [SwitchC-isis-1] network-entity 10.0000.0000.0003.00 [SwitchC-isis-1] is-level level - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 153
The output shows that when the default DIS priority is used, Switch C is the DIS for Level-1, and Switch D is the DIS for Level-2. The pseudonodes of Level-1 and Level-2 are 0000.0000.0003.01 and 0000.0000.0004.01. #Configure the DIS priority of Switch A. [SwitchA] interface vlan-interface 100 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 154
-interface100 Id IPv4.State IPv6.State MTU Type DIS 001 Up Down 1497 L1/L2 Yes/Yes The output shows that after the DIS priority configuration, Switch A becomes the DIS for Level-1-2, and the pseudonode is 0000.0000.0001.01. # Display information about IS-IS neighbors and interfaces on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 155
C is a Level-1-2 router. Redistribute RIP routes into IS-IS on Switch D. Figure 39 Network diagram Configuration procedure 1. Configure IP addresses for interfaces. (Details not shown.) 2. Configure basic IS-IS: # Configure Switch A. system-view [SwitchA] isis 1 [SwitchA-isis-1] is-level - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 156
.0002.00 [SwitchB-isis-1] quit [SwitchB] interface vlan-interface 200 [SwitchB-Vlan-interface200] isis enable 1 [SwitchB-Vlan-interface200] quit # Configure Switch C. system-view [SwitchC] isis 1 [SwitchC-isis-1] network-entity 10.0000.0000.0003.00 [SwitchC-isis-1] quit [SwitchC] interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 157
.0.1 R/-/- Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set 3. Run RIPv2 between Switch D and Switch E, and configure IS-IS to redistribute RIP routes on Switch D: # Configure RIPv2 on Switch D. [SwitchD] rip 1 [SwitchD-rip-1] network 10.0.0.0 [SwitchD-rip-1] version 2 146 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 158
U-Up/Down Bit Set IS-IS authentication configuration example Network requirements As shown in Figure 40, Switch A, Switch B, Switch C, and Switch D reside in the same IS-IS routing domain. Run IS-IS among them. Switch A, Switch B, and Switch C belong to Area 10, and Switch D belongs to Area 20. 147 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 159
.0001.00 [SwitchA-isis-1] quit [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] isis enable 1 [SwitchA-Vlan-interface100] quit # Configure Switch B. system-view [SwitchB] isis 1 [SwitchB-isis-1] network-entity 10.0000.0000.0002.00 [SwitchB-isis-1] quit [SwitchB] interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 160
-interface300] isis authentication-mode md5 plain hSec [SwitchD-Vlan-interface300] quit 4. Configure the area authentication mode as MD5 and set the plaintext password to 10Sec on Switch A, Switch B, and Switch C. [SwitchA] isis 1 [SwitchA-isis-1] area-authentication-mode md5 plain 10Sec [SwitchA - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 161
masks for interfaces. (Details not shown.) 2. Configure IS-IS on the switches to make sure Switch A, Switch B, and Switch C can communicate with each other at layer 3 and dynamic route update can be implemented among them with IS-IS. (Details not shown.) 3. Configure IS-IS GR: # Enable IS-IS GR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 162
: supported Level-1 restart information Total number of interfaces: 1 Number of waiting LSPs: 0 Level-2 restart information Total number of interfaces: 1 Number of waiting LSPs: 0 BFD for IS-IS configuration example Network requirements • As shown in Figure 42, run IS-IS on Switch A, Switch B and - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 163
] isis enable [SwitchA-Vlan-interface10] quit [SwitchA] interface vlan-interface 11 [SwitchA-Vlan-interface11] isis enable [SwitchA-Vlan-interface11] quit # Configure Switch B. system-view [SwitchB] isis [SwitchB-isis-1] network-entity 10.0000.0000.0002.00 [SwitchB-isis-1] quit [SwitchB - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 164
8 [SwitchB-Vlan-interface10] return Verifying the configuration # Display the BFD session information on Switch A. display bfd session Total Session ID: 1 Age: 04h20m37s Preference: 10 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 192.168.0.100 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 165
OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 10.1.1.100 RealNextHop: 10.1.1.100 BkNextHop: N/A Interface: Vlan-interface11 BkInterface: N/A The output shows that Switch A and Switch B communicate through VLAN-interface 11. IS-IS FRR configuration example Network - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 166
12.2 [SwitchS-route-policy-frr-10] quit [SwitchS] isis 1 [SwitchS-isis-1] fast-reroute route-policy frr [SwitchS-isis-1] quit # Configure Switch D. < Process ID: 1 Age: 04h20m37s Preference: 10 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 13.13.13.2 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 167
# Display route 1.1.1.1/32 on Switch D to view the backup next hop information. [SwitchD] display ip routing-table BkTunnel ID: Invalid Process ID: 1 Age: 04h20m37s Preference: 10 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 0.0.0.0 OrigNextHop: 13.13.13.1 RealNextHop: 13.13 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 168
157 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 169
Configuring BGP Overview Border Gateway Protocol (BGP) is an exterior gateway protocol ( called a path-vector protocol. • Supports CIDR. • Reduces bandwidth consumption by advertising only incremental updates. BGP is very suitable to advertise large numbers of routes on the Internet. • Eliminates - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 170
BGP uses the following path attributes in update messages for route filtering and selection: routing loops-A BGP router does not receive routes containing the local AS number to avoid routing loops. { Affect route selection-BGP gives priority to routing policy, see "Configuring routing policies." 159 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 171
{ Filter routes-By using an AS path list, you can filter routes based on AS numbers contained in the AS_PATH attribute. For more information about AS path list, see "Configuring routing policies." • NEXT_HOP The NEXT_HOP attribute may not be the IP address of a directly-connected router. Its value - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 172
C MED = 100 AS 20 Generally BGP only compares MEDs of routes received from the same AS. You can also use the compare-different-as-med command to force BGP to compare MED values of routes received from different ASs. • LOCAL_PREF The LOCAL_PREF attribute is exchanged between IBGP peers only, and is - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 173
routing policy configuration, management, and maintenance. Well-known COMMUNITY attributes involve the following: { INTERNET-By default, all ASs in the confederation. For confederation information, see "Settlements for problems in large-scale BGP networks." { No_ADVERTISE-Routes with this attribute - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 174
only the best route to its peers. If the advertise-rib-active command is configured, BGP advertises the best route in the IP routing table; if not above rules to the peer. After that, BGP advertises only incremental updates to the peer. BGP load balancing BGP implements load balancing through - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 175
number of next hops to forward packets. BGP load balancing based on route recursion is always enabled by the system rather than configured by using commands number of two routes is configured on Router C, and the two routes have the same AS_PATH, ORIGIN, LOCAL_PREF, and MED, Router C installs problems - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 176
supports both manual and automatic route summarization. Manual updates. It can consume too many resources and affect other operations. In most cases, BGP runs in complex networks where route changes are more frequent. To solve the problem (1000, which is a fixed number and cannot be changed) to the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 177
connectivity. If n routers exist in an AS, the number of IBGP connections is n(n-1)/2. If a large number of IBGP peers exist, large amounts of network and CPU resources. You can use commands to disable route reflection instead of modifying network configuration or changing network topology. - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 178
confederation as one AS, and the confederation ID as the AS number. In the above figure, AS 200 is the confederation ID. are key routing information. BGP-4 uses update messages to carry feasible route prefixes in multiple network layer protocols. To support multiple network layer protocols, MP-BGP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 179
BGP speakers not supporting MP-BGP ignore updates containing these attributes and do not forward them to its peers. The current MP-BGP implementation supports multiple protocol extensions, including VPN, IPv6, and multicast. For more information about VPN, see MCE Configuration Guide. Address family - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 180
effective for IPv4 unicast routes in the specified VPN instance. Configurations in this view are effective for IPv6 unicast routes in the specified VPN instance. Protocols and standards • RFC 1700, ASSIGNED NUMBERS • RFC 1771, A Border Gateway Protocol 4 (BGP-4) • RFC 2858, Multiprotocol Extensions - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 181
• Configuring the default local preference • Configuring the MED attribute • Configuring the NEXT_HOP attribute • Configuring the AS_PATH attribute N/A (Optional.) Tuning and optimizing BGP networks: • Configuring the keepalive interval and hold time • Configuring the interval for sending updates - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 182
• Configuring the default local preference • Configuring the MED attribute • Configuring the NEXT_HOP attribute • Configuring the AS_PATH attribute N/A (Optional.) Tuning and optimizing BGP networks: • Configuring the keepalive interval and hold time • Configuring the interval for sending updates - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 183
use the router-id command in BGP view, rather than the router id command in system view. number • Enable BGP and enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name 4. Specify a router ID. router-id router-id Remarks N/A By default, no global router ID is configured - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 184
view are not created. By default, the router cannot exchange IPv4 unicast routing information with the peer. Configuring an IPv6 BGP peer Step Command 1. Enter system view. system-view 2. Enter BGP view or BGP-VPN instance view. • Enter BGP view: bgp as-number • Enter BGP-VPN instance view - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 185
peer group and then add a peer into it, the system creates the peer in BGP view and specifies the local AS number for the peer. To configure an IBGP peer group (IPv4): Step Command Remarks 1. Enter system view. 2. Enter BGP view or BGP-VPN instance view. system-view • Enter BGP view: bgp as - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 186
instance view. Command • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip default, no peer exists in the peer group. To use the as-number as-number option, you must specify the local AS number. By default, no description is configured for the peer group. By default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 187
ip-address group group-name [ as-number as-number ] By default, no peer exists in the peer group. The as-number as-number option, if used, must specify the same AS number as the peer group-name as-number as-number command. 6. (Optional.) Configure a peer group-name description description for - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 188
no peer exists in the peer group. The as-number as-number option, if used, must specify the same AS number as the peer group-name as-number as-number command. By default, no description is configured for the peer group. By default, the BGP IPv6 unicast instance view and BGP-VPN IPv6 unicast instance - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 189
no peer exists in the peer group. The as-number as-number option, if used, must specify the same AS number as the peer ip-address as-number as-number command. By default, no description is configured for the peer group. By default, the BGP IPv6 unicast instance view and BGP-VPN IPv6 unicast instance - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 190
. By default, the router cannot exchange IPv4 unicast routing information with the peers. To configure an EBGP peer group by using Method 3 (IPv6): Step Command Remarks 1. Enter system view. system-view N/A 2. Enter BGP view or BGP-VPN instance view. • Enter BGP view: bgp as-number • Enter - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 191
to reestablish TCP connections. To avoid this problem, use a loopback interface as the Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number interface interface-type group. interface-number Remarks N/A N/A By default, BGP uses the outbound interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 192
routing table. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip configure route redistribution from an IGP to BGP. By default, BGP does not redistribute default IGP routes. You can use the default-route imported command to redistribute default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 193
] By default, BGP does not redistribute IGP routes. default-route imported By default, BGP does not redistribute default routes. To configure BGP to default route redistribution into BGP. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 194
. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name ipv4-family [ unicast ] summary automatic Remarks N/A N/A N/A By default, automatic route summarization is not configured. Configuring manual route - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 195
-policy route-policy-name | By default, no summary route is configured. suppress-policy route-policy-name ] * To configure BGP manual route summarization (IPv6): Step Command Remarks 1. Enter system view. system-view N/A 2. Enter BGP view. bgp as-number N/A 3. Enter BGP IPv6 unicast - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 196
IPv4 unicast instance view or BGP-VPN IPv4 unicast instance view. 4. Advertise a default route to a peer or peer group. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name ipv4-family [ unicast ] peer { group-name - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 197
-value ] * Remarks N/A N/A N/A By default, the number of routes that a router can receive from a peer or peer group is not limited. Configuring BGP route filtering policies Configuration prerequisites Before you configure BGP routing filtering policies, configure the following filters used for - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 198
be advertised. To configure BGP route distribution filtering policies (IPv4): Step 1. Enter system view. 2. Enter BGP view or BGP-VPN instance view. 3. Enter BGP IPv4 unicast instance view or BGP-VPN IPv4 unicast instance view. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 199
4. Configure BGP route distribution filtering policies. Command • Reference an ACL or IP prefix list to filter routes redistributed to all peers: filter-policy { acl-number | prefix-list prefix-list-name } export [ direct | isis process-id | ospf process-id | rip process-id | static ] • Reference - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 200
Step 4. Configure BGP route distribution filtering policies. Command • Reference an ACL or IPv6 prefix list to filter routes redistributed to all peers: filter-policy { acl6-number | prefix-list ipv6-prefix-name } export [ direct | isisv6 process-id | ospfv3 process-id | ripng process-id | static ] - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 201
routing information from a peer or peer group: peer { group-name | ip-address } filter-policy acl-number import Use at least one method. By default, no route reception filtering is configured. • Reference an AS path list to filter routing information from a peer or peer group: peer { group - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 202
unicast instance view or BGP-VPN IPv6 unicast instance view. 4. Configure BGP route reception filtering policies. Command ipv6-family [ unicast ] Remarks N/A • Reference ACL or IPv6 prefix list to filter routes from all peers: filter-policy { acl6-number | prefix-list ipv6-prefix-name } import - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 203
view. 4. Configure IPv6 BGP route dampening. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn policy-name ] * By default, IPv6 BGP route dampening is not configured. Controlling BGP path selection By configuring BGP path attributes, you - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 204
Command 1. Enter system view. system-view 2. Enter BGP view or BGP-VPN instance view. • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number than the local BGP route by default. You can use the network short-cut command to configure the EBGP route as a shortcut route - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 205
, and 130. By default, an EBGP route has a preference of 255. To configure preferences for BGP routes (IPv6): Step Command Remarks 1. Enter system view number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name ipv6-family [ unicast ] N/A N/A N/A 4. Configure - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 206
view or BGP-VPN instance view. 3. Enter BGP IPv4 unicast instance view or BGP-VPN IPv4 unicast instance view. 4. Configure the default local preference. Command • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name ipv4-family [ unicast - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 207
or BGP-VPN instance view. 3. Enter BGP IPv6 unicast instance view or BGP-VPN IPv6 unicast instance view. 4. Configure the default MED value. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name ipv6-family [ unicast - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 208
routes from different ASs. Command ipv6-family [ unicast ] compare-different-as-med Remarks N/A By default, this feature is disabled .0.0.0 learned from Router C should not be optimal. You can configure the bestroute compare-med command to enable MED comparison for routes from the same AS on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 209
BGP IPv6 unicast instance view. 4. Enable MED comparison for routes on a per-AS basis. Command system-view bgp as-number ipv6-family [ unicast ] bestroute compare-med Remarks N/A N/A N/A By default, this feature is disabled. Enabling MED comparison for routes from confederation peers This task - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 210
. 4. Enable MED comparison for routes from confederation peers. Command system-view bgp as-number ipv6-family [ unicast ] bestroute med-confederation Remarks N/A N/A N/A By default, this feature is disabled. Configuring the NEXT_HOP attribute By default, a BGP router does not set itself as the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 211
next hop by default. However, you can configure Router B to set it (1.1.1.2/24) as the next hop for routes sent to Router A by using the peer next-hop-local command as needed. Figure 55 NEXT_HOP attribute configuration IMPORTANT: If you have configured BGP load balancing, the router sets itself as - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 212
-hop-local Remarks By default, the router sets itself as the next hop for routes sent to an EBGP peer or peer group, but does not set itself as the next hop for routes sent to an IBGP peer or peer group. Configuring the AS_PATH attribute Permitting local AS number to appear in - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 213
appear in routes from a peer or peer group and specify the appearance times. Command ipv6-family [ unicast ] peer { group-name | ipv6-address } allow-as-loop [ number ] Remarks N/A By default, the local AS number is not allowed in routes from a peer or peer group. Disabling BGP from considering - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 214
-address } fake-as as-number Remarks N/A N/A By default, no fake AS number is advertised to a peer or peer group. This command applies to only EBGP peers or EBGP peer groups. Configuring AS number substitution IMPORTANT: Do not configure AS number substitution in normal circumstances. Otherwise - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 215
N/A By default, AS number substitution is not configured. To configure AS number substitution for a peer or peer group (IPv6): Step Command 1. Enter default, AS number substitution is not configured. Removing private AS numbers from updates sent to an EBGP peer or peer group Private AS numbers - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 216
[ unicast ] peer { group-name | ip-address } public-as-only Remarks N/A N/A N/A By default, this feature is not configured. This command is only applicable to EBGP peers or peer groups. To remove private AS numbers from updates sent to an EBGP peer or peer group (IPv6): Step 1. Enter system view - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 217
and hold time. Command Remarks system-view N/A • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name N/A Use either method. • Configure the global keepalive interval and hold time: timer keepalive keepalive hold By default, the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 218
Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name 3. Configure the interval for sending updates for the same peer { group-name | ip-address } route to a peer or peer group. route-update-interval interval Remarks N/A N/A By default, the interval is 15 seconds for an - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 219
Step 2. Enter BGP view or BGP-VPN instance view. Command • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name 3. Configure the interval for peer { group-name | sending updates for the same ipv6-address } route to a peer or peer - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 220
of direct EBGP connections upon link failure. Command system-view bgp as-number ebgp-interface-sensitive Remarks N/A N/A By default, this feature is enabled. Enabling 4-byte AS number suppression BGP supports 4-byte AS numbers. The 4-byte AS number occupies four bytes, in the range of - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 221
peer group. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name peer { group-name | ip-address } password { cipher | simple } password Remarks N/A N/A By default, MD5 authentication is not configured for any BGP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 222
or peer group. Command Remarks • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name N/A peer { group-name | ipv6-address } password { cipher | simple } password By default, MD5 authentication is not configured for any BGP peer - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 223
or peer group. Command system-view • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name peer { group-name | ipv6-address } ignore Remarks N/A N/A By default, BGP can establish a session to a peer. Configuring BGP soft-reset After - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 224
command to save all route updates from the specified peer. After modifying the route selection policy, filter routing information by using the new policy. This method does not require that the local router and the peer support route refresh but it uses more memory resources to save routes. • Manual - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 225
N/A N/A N/A By default, the routes are not saved. This command takes effect only for the routes received after this command is executed. To save all route updates from the specified peer or peer group (IPv6): Step 1. Enter system view. 2. Enter BGP view Command system-view bgp as-number Remarks - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 226
all route updates from the peer or peer group. peer { group-name | ipv6-address } keep-all-routes Remarks N/A By default, the routes are not saved. This command takes effect only for the routes received after this command is executed. Configuring manual soft-reset To configure manual soft-reset - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 227
peer group. Command • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn By default, BGP route refresh is enabled. 4. Return to user view. return N/A 5. Perform manual about thresholds, see Fundamentals Configuration Guide. To configure BGP to protect EBGP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 228
Configure BGP to protect EBGP peer or peer group when the memory usage reaches level 2 threshold. Command • Enter BGP view: bgp as-number • Enter BGP-VPN instance view: a. bgp as-number b. ip vpn-instance vpn-instance-name peer { group-name | ip-address } low-memory-exempt Remarks N/A By default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 229
N/A By default, the COMMUNITY or extended community attribute is not advertised. By default, no routing policy is applied. To configure BGP community policy to routes advertised to a peer or peer group. Command system-view bgp as-number ipv6-family [ unicast ] • Advertise the COMMUNITY attribute - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 230
, route reflection between clients is enabled. By default, a route reflector uses its own router ID as the cluster ID. To configure a BGP route reflector (IPv6): Step Command 1. Enter system view. system-view 2. Enter BGP view. bgp as-number 3. Enter BGP IPv6 unicast instance view. ipv6 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 231
. 2. Enter BGP view. Command system-view bgp as-number 3. Configure a confederation ID. confederation id as-number 4. Specify peering sub-ASs in the confederation peer-as confederation. as-number-list Remarks N/A N/A By default, no confederation ID is configured. By default, no peering sub-AS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 232
end to receive updates from the peer. Perform the following configuration on the GR Restarter and GR Helper. To configure BGP GR: Step 1. Enter system view. 2. Enter BGP view. 3. Enable GR capability for BGP. Command system-view bgp as-number graceful-restart 4. Configure the GR timer. graceful - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 233
1. Enter system view. 2. Enable trap for BGP. Command system-view snmp-agent trap enable bgp Remarks N/A By default, trap for BGP is enabled. For more information about this command, see Network Management and Monitoring Configuration Guide. Enabling logging of session state changes Perform this - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 234
N/A a. bgp as-number b. ip vpn-instance vpn-instance-name 3. Enable BFD to detect the link to the specified IPv6 BGP peer. peer ipv6-address bfd By default, BFD is not enabled. Displaying and maintaining BGP Execute display commands in any view and reset commands in user view (IPv4). Task - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 235
path-acl-number ] Display information about routes advertised by the network command and shortcut routes configured by the network short-cut command. display -acl as-path-acl-number | peer peer-address ] Execute display commands in any view and reset commands in user view (IPv6). Task Display - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 236
and shortcut routes configured by the network short-cut command. display bgp network ipv6 [ unicast ] [ vpn-instance vpn-instance-name ] Display BGP path attribute information. display bgp paths [ as-regular-expression ] Reset IPv6 unicast BGP sessions. reset bgp { as-number | ipv6-address | all - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 237
to Switch A. Figure 57 Network diagram Configuration considerations To prevent route flapping caused by port state changes, this example uses loopback interfaces to establish IBGP connections. Because loopback interfaces are virtual interfaces, use the peer connect-interface command to specify - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 238
-ipv4] peer 3.1.1.1 enable [SwitchA-bgp-ipv4] network 8.1.1.0 24 [SwitchA-bgp-ipv4] quit [SwitchA-bgp] quit # Configure Switch B. [SwitchB] bgp 65009 [SwitchB-bgp] peer 3.1.1.2 as-number 65008 [SwitchB-bgp] ipv4-family unicast [SwitchB-bgp-ipv4] peer 3.1.1.2 enable [SwitchB-bgp-ipv4] quit - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 239
- incomplete Network NextHop MED LocPrf PrefVal Path/Ogn > 8.1.1.0/24 8.1.1.1 0 # Display the BGP routing table on Switch B. [SwitchB] display bgp routing-table ipv4 0 i Total number of routes: 1 BGP local router ID is 2.2.2.2 Status codes: * - valid, > - best, d - damped, h - history - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 240
to 3.1.1.0/24. # Configure Switch B. [SwitchB] bgp 65009 [SwitchB-bgp] ipv4-family unicast [SwitchB-bgp-ipv4] import-route direct [SwitchB-bgp-ipv4] quit [SwitchB-bgp] quit # Display the BGP routing table on Switch A. [SwitchA] display bgp routing-table ipv4 Total number of routes: 4 BGP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 241
8.1.1.0/24 in AS 65008. Figure 58 Network diagram Configuration considerations Configure BGP to redistribute routes from OSPF on Switch B, so Switch A can obtain the route to 9.1.2.0/24. Configure OSPF to redistribute routes from BGP on Switch B, so Switch C can obtain the route to 8.1.1.0/24 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 242
network 8.1.1.0/24 to the BGP routing table of Switch A, so that Switch B can obtain the route to 8.1.1.0/24. # Configure Switch A. system-view [SwitchA] bgp 65008 [SwitchA-bgp] router-id 1.1.1.1 [SwitchA-bgp] peer 3.1.1.1 as-number 65009 [SwitchA-bgp] ipv4-family unicast [SwitchA-bgp - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 243
0 >e 9.1.2.0/24 3.1.1.1 1 # Display the OSPF routing table on Switch C. [SwitchC] display ospf routing 0 65009? 0 i 0 65009? 3 Intra Area: 2 Inter Area: 0 ASE: 1 NSSA: 0 Verifying the configuration # Use ping for verification. [SwitchA] ping -a 8.1.1.1 9.1.2.1 PING 9.1.2.1 (9.1.2.1) - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 244
.168.64.0/24, 192.168.74.0/24, and 192.168.99.0/24 to Switch D. Figure 59 Network diagram Configuration procedure 1. Configure IP addresses for interfaces. (Details not shown.) 2. Configure static routing between Switch A and Switch B: # Configure a default route with the next hop 192.168.212.1 on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 245
10.220.2.217 enable [SwitchC-bgp-ipv4] import-route ospf # Enable BGP, and configure Switch C as an EBGP peer on Switch D. [SwitchD] bgp 64631 [SwitchD-bgp] router-id 4.4.4.4 [SwitchD-bgp] peer 10.220.2.16 as-number 65106 [SwitchD-bgp] ipv4-family unicast [SwitchD-bgp-ipv4] peer 10.220.2.16 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 246
routes. [SwitchC-bgp-ipv4] aggregate 192.168.64.0 18 detail-suppressed [SwitchC-bgp-ipv4] quit [SwitchC-bgp] quit Verifying the configuration # Display IP routing table on Switch C. [SwitchC] display ip routing-table | include 192.168 192.168.64.0/18 BGP 130 0 127.0.0.1 192.168.64.0/24 OSPF - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 247
between Switch A and Switch B and between Switch A and Switch C. Run IBGP between Switch B and Switch C. Configure load balancing over the two EBGP links on Switch A. Figure 60 Network diagram Configuration considerations On Switch A, establish EBGP connections with Switch B and Switch C. Configure - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 248
8.1.1.1 24 [SwitchA-bgp-ipv4] quit [SwitchA-bgp] quit # Configure Switch B. system-view [SwitchB] bgp 65009 [SwitchB-bgp] router-id 2.2.2.2 [SwitchB-bgp] peer 3.1.1.2 as-number 65008 [SwitchB-bgp] peer 3.3.3.3 as-number 65009 [SwitchB-bgp] peer 3.3.3.3 connect-interface loopback 0 [SwitchB - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 249
SwitchA-bgp] quit Verifying the configuration # Display the BGP routing table on Switch A. [SwitchA] display bgp routing-table ipv4 Total number of routes: 3 BGP they are the best routes. • By using the display ip routing-table command, you can find two routes to 9.1.1.0/24. One has next hop - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 250
-bgp-ipv4] network 9.1.1.0 255.255.255.0 [SwitchA-bgp] quit # Configure Switch B. system-view [SwitchB] bgp 20 [SwitchB-bgp] router-id 2.2.2.2 [SwitchB-bgp] peer 200.1.2.1 as-number 10 [SwitchB-bgp] peer 200.1.3.2 as-number 30 [SwitchB-bgp] ipv4-family unicast [SwitchB-bgp-ipv4] peer 200 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 251
the route with the destination 9.1.1.0/24 to other ASs through BGP. # Display the BGP routing table on Switch C. [SwitchC] display bgp routing-table ipv4 Total number of routes: 1 BGP local router ID is 3.3.3.3 Status codes: * - valid, > - best, d - dampened, h - history, s - suppressed, S - stale - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 252
[SwitchA-bgp-ipv4] peer 200.1.2.2 advertise-community Verifying the configuration # Display the routing table on Switch B. [SwitchB] display bgp routing-table ipv4 9.1.1.0 20 10i BGP local router ID: 2.2.2.2 Local AS number: 20 Paths: 1 available, 1 best BGP routing table information of - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 253
Figure 62 Network diagram Configuration procedure 1. Configure IP addresses for interfaces. (Details not shown.) 2. Configure BGP connections: # Configure Switch A. system-view [SwitchA] bgp 100 [SwitchA-bgp] router-id 1.1.1.1 [SwitchA-bgp] peer 192.1.1.2 as-number 200 [SwitchA-bgp] ipv4 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 254
next-hop-local [SwitchB-bgp-ipv4] quit [SwitchB-bgp] quit # Configure Switch C. system-view [SwitchC] bgp 200 [SwitchC-bgp] router-id 3.3.3.3 [SwitchC-bgp] peer 193.1.1.2 as-number 200 [SwitchC-bgp] peer 194.1.1.2 as-number 200 [SwitchC-bgp] ipv4-family unicast [SwitchC-bgp-ipv4] peer 193 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 255
i - IGP, e - EGP, ? - incomplete Network NextHop MED LocPrf PrefVal Path/Ogn i 20.0.0.0 193.1.1.2 0 100 Switch D has learned route 20.0.0.0/8 from Switch C. 0 100i BGP confederation configuration example Network requirements As shown in Figure 63, to reduce IBGP connections, AS 200 is - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 256
] peer 10.1.2.1 enable [SwitchC-bgp-ipv4] quit [SwitchC-bgp] quit 3. Configure IBGP connections in AS 65001: # Configure Switch A. [SwitchA] bgp 65001 [SwitchA-bgp] peer 10.1.3.2 as-number 65001 [SwitchA-bgp] peer 10.1.4.2 as-number 65001 [SwitchA-bgp] ipv4-family unicast [SwitchA-bgp-ipv4] peer 10 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 257
[SwitchD-bgp] quit # Configure Switch E. system-view [SwitchE] bgp 65001 [SwitchE-bgp] router-id 5.5.5.5 [SwitchE-bgp] confederation id 200 [SwitchE-bgp] peer 10.1.4.1 as-number 65001 [SwitchE-bgp] peer 10.1.5.1 as-number 65001 [SwitchE-bgp] ipv4-family unicast [SwitchE-bgp-ipv4] peer 10 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 258
100, pref-val 0, pre 255 State : valid, external-confed, best, # Display the BGP routing table on Switch D. [SwitchD] display bgp routing-table ipv4 Total number of routes: 1 BGP local router ID is 4.4.4.4 Status codes: * - valid, > - best, d - damped, h - history, s - suppressed, S - Stale - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 259
BGP. EBGP runs between Switch A and Switch B, and between Switch A and Switch C. IBGP runs between Switch B and Switch D, and between Switch D and Switch C. OSPF is the IGP protocol in AS 200. Configure routing policies, making Switch D use the route 1.0.0.0/8 from Switch C as the optimal. Figure - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 260
A. [SwitchA-bgp-ipv4] network 1.0.0.0 8 [SwitchA-bgp-ipv4] quit [SwitchA-bgp] quit # Configure Switch B. [SwitchB] bgp 200 [SwitchB-bgp] peer 192.1.1.1 as-number 100 [SwitchB-bgp] peer 194.1.1.1 as-number 200 [SwitchB-bgp] ipv4-family unicast [SwitchB-bgp-ipv4] peer 192.1.1.1 enable [SwitchB-bgp - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 261
[SwitchC-bgp-ipv4] peer 195.1.1.1 enable [SwitchC-bgp-ipv4] quit [SwitchC-bgp] quit # Configure Switch D. [SwitchD] bgp 200 [SwitchD-bgp] peer 194.1.1.2 as-number 200 [SwitchD-bgp] peer 195.1.1.2 as-number 200 [SwitchD-bgp] ipv4-family unicast [SwitchD-bgp-ipv4] peer 194.1.1.2 enable [SwitchD-bgp - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 262
route 1.0.0.0/8. [SwitchC] acl number 2000 [SwitchC-acl-basic-2000] rule permit source 1.0.0.0 0.255.255.255 [SwitchC-acl-basic-2000] quit # Configure a routing policy named localpref on Switch C, setting the local preference of route 1.0.0.0/8 to 200 (the default is 100). [SwitchC] route - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 263
on Switch B. Figure 65 Network diagram Configuration procedure 1. Configure Switch A: # Configure IP addresses for interfaces. (Details not shown.) # Configure the EBGP connection. system-view [SwitchA] bgp 65008 [SwitchA-bgp] router-id 1.1.1.1 [SwitchA-bgp] peer 200.1.1.1 as-number 65009 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 264
[SwitchB-bgp-ipv4] peer 9.1.1.2 enable 3. Configure Switch C: # Configure IP addresses for interfaces. (Details not shown.) # Configure the IBGP connection. system-view [SwitchC] bgp 65009 [SwitchC-bgp] router-id 3.3.3.3 [SwitchC-bgp] peer 9.1.1.1 as-number 65009 # Enable GR capability for - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 265
are reachable to each other. (Details not shown.) 3. Configure BGP on Switch A: # Establish two IBGP connections to Switch C. system-view [SwitchA] bgp 200 [SwitchA-bgp] peer 3.0.2.2 as-number 200 [SwitchA-bgp] peer 2.0.2.2 as-number 200 [SwitchA-bgp] ipv4-family unicast [SwitchA-bgp-ipv4 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 266
[SwitchA-bgp] peer 3.0.2.2 bfd [SwitchA-bgp] quit 4. Configure BGP on Switch C: # Establish two IBGP connections to Switch A. system-view [SwitchC] bgp 200 [SwitchC-bgp] peer 3.0.1.1 as-number 200 [SwitchC-bgp] peer 2.0.1.1 as-number 200 [SwitchC-bgp] ipv4-family unicast [SwitchC-bgp-ipv4 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 267
The output shows that a BFD session has been established between Switch A and Switch C. # Display BGP peer information on Switch C. display bgp peer ipv4 BGP local router ID: 3.3.3.3 Local AS number: 200 Total number of peers: 2 Peers in established state: 2 Peer AS MsgRcvd MsgSent - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 268
Adv OrigTblID: 0x1 OrigVrf: default-vrf TableID: 0x2 OrigAs: Switch CSwitch DSwitch A. IPv6 BGP configuration examples IPv6 BGP basic configuration example Network requirements In Figure 67, run EBGP between Switch A and Switch B, and run IBGP between Switch B and Switch C so that Switch - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 269
system-view [SwitchC] bgp 65009 [SwitchC-bgp] router-id 3.3.3.3 [SwitchC-bgp] peer 9::1 as-number 65009 [SwitchC-bgp] ipv6-family [SwitchC-bgp-ipv6] peer 9::1 enable 3. Configure EBGP: # Configure Switch A. system-view [SwitchA] bgp 65008 [SwitchA-bgp] router-id 1.1.1.1 [SwitchA-bgp] peer - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 270
Verifying the configuration # Display IPv6 BGP peer information on Switch B. [SwitchB] display bgp peer ipv6 BGP local router ID: 2.2.2.2 Local AS number: 65009 Total number of peers: 2 Peers in established state: 2 Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State 9::2 10::2 65009 41 43 0 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 271
hosts on network 50::/64 on Switch C. The ping operations succeed. IPv6 BGP route reflector configuration example Network requirements In Figure 68, run EBGP between Switch A and Switch B, run IBGP between Switch C and Switch B, and between Switch C and Switch D. Switch C is a route reflector with - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 272
] network 100:: 96 [SwitchA-bgp-ipv6] quit [SwitchA-bgp] quit # Configure Switch B system-view [SwitchB] bgp 200 [SwitchB-bgp] router-id 2.2.2.2 [SwitchB-bgp] peer 100::1 as-number 100 [SwitchB-bgp] peer 101::1 as-number 200 [SwitchB-bgp] ipv6-family [SwitchB-bgp-ipv6] peer 100::1 enable - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 273
] peer 102::2 reflect-client [SwitchC-bgp-ipv6] quit [SwitchC-bgp] quit Verifying the configuration # Execute the display bgp routing-table ipv6 command on Switch D. [SwitchD] display bgp routing-table ipv6 Total number of routes: 5 BGP local router ID is 4.4.4.4 Status codes: * - valid, > - best - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 274
OSPFv3 as the IGP in AS 200. Establish two IBGP connections between Switch A and Switch C. When both paths are working, Switch C adopts the path Switch ASwitch BSwitch C to exchange packets with network 1200::0/64. Configure BFD over the path. Then if the path fails, BFD can quickly detect - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 275
peer 3001::3 bfd [SwitchA-bgp] quit 4. Configure IPv6 BGP on Switch C: # Establish two IBGP connections to Switch A. system-view [SwitchC] bgp 200 [SwitchC-bgp] router-id 3.3.3.3 [SwitchC-bgp] peer 3000::1 as-number 200 [SwitchC-bgp] peer 2000::1 as-number 200 [SwitchC-bgp] ipv6-family 264 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 276
quit [SwitchC] quit Verifying the configuration # Display detailed BFD session information on Switch C. display bfd session Switch A and Switch C. # Display BGP peer information on Switch C. display bgp peer ipv6 BGP local router ID: 3.3.3.3 Local AS number: 200 Total number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 277
ID: 0 Age: 00h01m07s Preference: 255 State: Active Adv OrigVrf: default-vrf OrigAs: 0 LastAs: 0 Neighbor: 3000::1 OrigNextHop: 3000::1 BGP to change the relevant IBGP session state. # Display route 1200::0/64 on Switch C. display ipv6 routing-table 1200::0 64 verbose Summary Count : 1 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 278
BGP peers, any two routers must establish a TCP connection using port 179 and exchange Open messages successfully. Solution 1. Use the display current-configuration command to verify the current configuration, and verify that the peer's AS number is correct. 2. Use the display bgp peer ipv4 unicast - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 279
packets and uses the routing table to forward other packets. If PBR is not configured, the device uses the routing table to forward packets. The device supports only interface PBR, which guides the forwarding of packets received on an interface only. Policy A policy comprises match criteria - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 280
view. 2. Create a node for a policy, and enter policy node view. Command Remarks system-view N/A policy-based-route policy-name By default, no policy node is [ deny | permit ] node node-number created. Configuring match criteria for a node Step 1. Enter system view. 2. Enter policy node - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 281
policy to multiple interfaces. To configure interface PBR: Step 1. Enter system view. 2. Enter interface view. 3. Apply a policy to the interface. Command system-view interface interface-type interface-number ip policy-based-route policy-name Remarks N/A N/A By default, no policy is applied to - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 282
-in standalone mode). Display interface PBR configuration and statistics (distributed devices-in IRF mode). Clear PBR statistics. Command display ip policy-based-route setup display ip policy-based-route interface interface-type interface-number display ip policy-based-route interface interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 283
> system-view [SwitchA] acl number 3101 [SwitchA-acl-adv-3101] rule permit tcp [SwitchA-acl-adv-3101] quit # Configure Node 5 for policy aaa to 20 [SwitchA-Vlan-interface20] ip address 1.1.3.1 255.255.255.0 2. Configure Switch B: # Configure a static route to subnet 10.110.0.0/24. system- - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 284
273 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 285
static route: Step 1. Enter system view. 2. Configure an IPv6 static route. 3. (Optional.) Configure the default preference for IPv6 static routes. Command system-view • Method 1: ipv6 route-static ipv6-address prefix-length { interface-type interface-number [ next-hop-address ] | next-hop-address - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 286
. For more information about BFD, see High Availability Configuration Guide. IMPORTANT: Enabling BFD for a flapping route could 2. Configure BFD control mode for an IPv6 static route. Command system-view • Method 1: ipv6 route-static ipv6-address prefix-length interface-type interface-number next - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 287
address of echo bfd echo-source-ipv6 ipv6-address packets. Remarks N/A By default, the source address of echo packets is not configured. The source address of echo packets must be a global unicast address. For more information about this command, see High Availability Command Reference. 276 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 288
either method. tag-value ] [ description description-text ] By default, BFD echo mode for • Method 2: an IPv6 static route is not ipv6 route-static vpn-instance configured. s-vpn-instance-name ipv6-address prefix-length interface-type interface-number next-hop-address bfd The next hop IPv6 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 289
addresses for all VLAN interfaces. (Details not shown.) 2. Configure IPv6 static routes: # Configure a default IPv6 static route on Switch A. system-view [SwitchA] ipv6 route-static :: 0 4::2 # Configure two IPv6 static routes on Switch B. system-view [SwitchB] ipv6 route-static - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 290
table Status : Summary Count : 0 # Use the ping command to test the reachability. [SwitchA] ping ipv6 3::1 PING6(104=40 Configuration procedure 1. Configure IPv6 addresses for interfaces. (Details not shown.) 2. Configure IPv6 static routes and BFD: # Configure IPv6 static routes on Switch - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 291
::2A0:FCFF:FE00:580A bfd control-packet [SwitchB] ipv6 route-static 121:: 64 vlan-interface 13 13::2 preference 65 [SwitchB] quit # Configure IPv6 static routes on Switch C. system-view [SwitchC] ipv6 route-static 120:: 64 13::1 [SwitchC] ipv6 route-static 121:: 64 10::102 Verifying the - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 292
a route to 2::9/128, with the output interface being VLAN-interface 12. Configure an IPv6 static route to subnet 120::/64 on Switch A, and configure an IPv6 static route to subnet 121::/64 on Switch B. Enable BFD for both routes. Configure an IPv6 static route to subnet 120::/64 and an IPv6 static - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 293
] ipv6 route-static 121:: 64 1::9 bfd control-packet bfd-source 2::9 [SwitchB] ipv6 route-static 121:: 64 13::2 preference 65 [SwitchB] quit # Configure IPv6 static routes on Switch C. system-view [SwitchC] ipv6 route-static 120:: 64 13::2 [SwitchC] ipv6 route-static 121:: 64 10::102 282 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 294
system-view [SwitchD] ipv6 route-static 120:: 64 11::2 [SwitchD] ipv6 route-static 121:: 64 12::1 Verifying the configuration # Display the BFD sessions on Switch A. display bfd session Total Session Num: 1 Up Session Num: 1 Init Mode: Active IPv6 Session Working Under Ctrl - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 295
Static Routing table Status : Summary Count : 0 The output shows that Switch A communicates with Switch B through VLAN-interface 11. 284 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 296
, an upstream router running OSPFv3 can generate a default IPv6 route and advertise it to other routers, which install the default IPv6 route with the next hop being the upstream router. For more information, see the respective chapters on those routing protocols in this configuration guide. 285 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 297
from the neighbor are considered unreachable. If no routing update is received within another 240 seconds, the router removes these routes from the routing table. RIPng for IPv6 has the following differences from RIP: • UDP port number-RIPng uses UDP port 521 to send and receive routing information - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 298
source IPv6 address is the link-local address and whether the port number is correct. A response packet that fails the check is discarded. Protocols and standards • RFC 2080, RIPng for IPv6 • RFC 2081, RIPng Protocol Applicability Statement RIPng configuration task list Tasks at a glance (Required - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 299
an outbound additional routing metric. Command system-view interface interface-type interface-number ripng metricin value ripng metricout value Remarks N/A N/A The default setting is 0. The default setting is 1. Configuring RIPng route summarization Configure route summarization on an interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 300
system-view interface interface-type interface-number 3. Configure RIPng to advertise a ripng default-route { only | default route. originate } [ cost cost ] Remarks N/A N/A By default, RIPng does not advertise a default route. This command advertises a default route on the current interface - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 301
Step 1. Enter system view. 2. Enter RIPng view. 3. Redistribute routes from other routing protocols. 4. (Optional.) Configure a default routing metric for redistributed routes. Command Remarks system-view N/A ripng [ process-id ] [ vpn-instance vpn-instance-name ] N/A import-route protocol - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 302
. HP recommends enabling split horizon to prevent routing loops in normal cases. To configure split horizon: Step 1. Enter system view. 2. Enter interface view. 3. Enable split horizon. Command system-view interface interface-type interface-number ripng split-horizon Remarks N/A N/A By default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 303
number Remarks N/A N/A By default, the maximum number of ECMP routes is the same as that configured in the max-ecmp-num command. For more information about the max-ecmp-num command, see IP Routing Command Reference. Configuring must learn RIPng routes again and updates its FIB table, which causes - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 304
3. Enable the GR capability for RIPng. Command graceful-restart Remarks By default, RIPng GR is disabled. Displaying and maintaining RIPng Execute display commands in any view and reset commands in user view. Task Command Display configuration information of a RIPng process. display ripng - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 305
-Vlan-interface100] quit [SwitchA] interface vlan-interface 400 [SwitchA-Vlan-interface400] ripng 1 enable [SwitchA-Vlan-interface400] quit # Configure Switch B. system-view [SwitchA] ripng 1 [SwitchA-ripng-1] quit [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] ripng - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 306
:2FF:FE64:8904, cost 2, tag 0, A, 31 Sec Dest 5::/64, via FE80::200:2FF:FE64:8904, cost 2, tag 0, A, 31 Sec 3. Configure route filtering: # Use IPv6 prefix lists on Switch B to filter received and redistributed routes. [SwitchB] ipv6 prefix-list aaa permit 4:: 64 [SwitchB] ipv6 prefix-list bbb deny - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 307
processes can redistribute routes from each other. Figure 75 Network diagram Configuration procedure 1. Configure IPv6 addresses for interfaces. (Details not shown.) 2. Configure basic RIPng: # Enable RIPng 100 on Switch A. system-view [SwitchA] ripng 100 [SwitchA-ripng-100] quit [SwitchA - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 308
0 Cost : 0 Destination: FF00::/8 Protocol : Direct NextHop : :: Preference: 0 Interface : NULL0 Cost : 0 3. Configure RIPng route redistribution: # Configure route redistribution between the two RIPng processes on Switch B. [SwitchB] ripng 100 [SwitchB-ripng-100] import-route ripng 200 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 309
Destination: ::1/128 NextHop : ::1 Interface : InLoop0 Destination: 1::/64 NextHop : 1::1 Interface : Vlan100 Destination: 1::1/128 NextHop : ::1 Interface : InLoop0 Destination: 2::/64 NextHop : 2::1 Interface : Vlan200 Destination: 2::1/128 NextHop : ::1 Interface : InLoop0 Destination: 4::/64 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 310
network. For more information about OSPFv2, see "Configuring OSPF." OSPFv3 overview OSPFv3 and OSPFv2 have the ), Link State Request (LSR), Link State Update (LSU), Link State Acknowledgment (LSAck) • OSPFv3 supports running multiple processes on an interface, but OSPFv2 does not support. • OSPFv3 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 311
to another AS. A default route can be described by Configuring OSPFv3 route control: • Configuring OSPFv3 route summarization • Configuring OSPFv3 received route filtering • Configuring Inter-Area-Prefix LSA filtering • Configuring an OSPFv3 cost for an interface • Configuring the maximum number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 312
interface. Command system-view ospfv3 [ process-id | vpn-instance vpn-instance-name ] * router-id router-id interface interface-type interface-number ospfv3 process-id area area-id [ instance instance-id ] Remarks N/A By default, no OSPFv3 process is enabled. By default, no router ID is configured - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 313
LSA number is reduced and OSPFv3 applications are extended. To further reduce the size of routing tables and the number of LSAs, configure the area view. 4. Configure the area as a stub area. 5. (Optional.) Specify a cost for the default route advertised to the stub area. Command system-view ospfv3 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 314
network type for an interface Step 1. Enter system view. Command system-view Remarks N/A 2. Enter interface view. interface interface-type interface-number N/A 3. Configure a network type for ospfv3 network-type { broadcast | By default, the network type of an the OSPFv3 interface. nbma - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 315
and its DR priority. Command system-view interface interface-type interface-number ospfv3 peer ipv6-address [ cost value | dr-priority dr-priority ] [ instance instance-id ] Remarks N/A N/A By default, no link-local address is specified for the neighbor interface. Configuring OSPFv3 route control - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 316
Inter-Area-Prefix LSA filtering Step Command Remarks 1. Enter system view. system-view N/A 2. Enter OSPFv3 view. ospfv3 [ process-id | vpn-instance vpn-instance-name ] * N/A By default, OSPFv3 accepts all 3. Configure OSPFv3 to filter filter { acl6-number | prefix-list Inter-Area-Prefix - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 317
] * maximum load-balancing maximum Remarks N/A N/A By default, the maximum number of ECMP routes is the same as that configured in the max-ecmp-num command. For more information about the max-ecmp-num command, see IP Routing Command Reference. Configuring a preference for OSPFv3 A router can run - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 318
-policy { acl6-number | prefix-list prefix-list-name } export [ protocol [ process-id ] ] By default, OSPFv3 accepts all redistributed routes. This command filters only routes redistributed with the import-route command. If the import-route command is not configured, executing this command does not - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 319
OSPFv3 timers Step 1. Enter system view. Command system-view Remarks N/A 2. Enter interface view. interface interface-type interface-number N/A 3. Configure the hello interval. ospfv3 timer hello seconds [ instance instance-id ] By default, the hello interval on P2P and broadcast interfaces - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 320
-interval × 2n-2 (n is the number of generation times) each time an LSA generation occurs until the maximum-interval is reached. To configure the LSA generation interval: Step 1. Enter system view. 2. Enter OSPFv3 view. 3. Configure the LSA generation interval. Command system-view ospfv3 [ process - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 321
Step 3. Configure a router priority. Command ospfv3 dr-priority priority [ instance instance-id ] Remarks The default router priority is DD packets. Command system-view interface interface-type interface-number ospfv3 mtu-ignore [ instance instance-id ] Remarks N/A N/A By default, OSPFv3 does - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 322
Command system-view ospfv3 [ process-id | vpn-instance vpn-instance-name ] * Remarks N/A N/A log-peer-change By default, this feature is enabled. Configuring the GR Restarter to complete the GR process. To prevent service interruption after a master/backup switchover, a GR Restarter running - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 323
default, the GR Helper capability is enabled. By default, strict LSA checking is disabled. Configuring High Availability Configuration Guide. After Command system-view ospfv3 [ process-id | vpn-instance vpn-instance-name ] * router-id router-id quit interface interface-type interface-number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 324
display commands in any view. Purpose Command Display -id ] retrans-queue [ interface-type interface-number ] [ neighbor-id ] Display OSPFv3 routing switches. • Split the AS into three areas. • Configure Switch B and Switch C as ABRs to forward routing information between areas. • Configure - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 325
-Vlan-interface300] quit [SwitchA] interface vlan-interface 200 [SwitchA-Vlan-interface200] ospfv3 1 area 1 [SwitchA-Vlan-interface200] quit # Configure Switch B: enable OSPFv3 and specify the router ID as 2.2.2.2. system-view [SwitchB] ospfv3 [SwitchB-ospfv3-1] router-id 2.2.2.2 [SwitchB - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 326
] ospfv3 1 area 2 [SwitchC-Vlan-interface400] quit # Configure Switch D: enable OSPFv3 and specify the router ID as 4.4.4.4. < Full/Backup 00:00:40 Vlan400 0 # Display OSPFv3 routing table information on Switch D. [SwitchD] display ospfv3 routing OSPFv3 Process 1 with Router ID 4.4.4.4 E1 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 327
: Vlan400 Total: 4 Intra area: 1 Inter area: 3 ASE: 0 3. Configure Area 2 as a stub area: # Configure Switch D [SwitchD] ospfv3 [SwitchD-ospfv3-1] area 2 [SwitchD-ospfv3-1-area-0.0.0.2] stub # Configure Switch C, and specify the cost of the default route sent to the stub area as 10 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 328
: 1 Inter area: 1 ASE: 0 The output shows that route entries are reduced. All indirect routes are removed, except the default route. Configuring OSPFv3 DR election Network requirements • Configure router priority 100 for Switch A, the highest priority on the network, so it will become the DR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 329
[SwitchA-ospfv3-1] quit [SwitchA] interface vlan-interface 100 [SwitchA-Vlan-interface100] ospfv3 1 area 0 [SwitchA-Vlan-interface100] quit # Configure Switch B: enable OSPFv3 and specify the router ID as 2.2.2.2. system-view [SwitchB] ospfv3 [SwitchB-ospfv3-1] router-id 2.2.2.2 [SwitchB - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 330
Switch A. The switches have the same default DR priority 1, so Switch D (the switch with the highest Router ID) is elected as the DR, and Switch quit # Configure the router priority of VLAN-interface 100 of Switch C neighbor information on Switch A. Router priorities have been updated, but the DR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 331
commands on interfaces to restart DR and BDR election. (Details not shown.) # Display neighbor information on Switch A. The output shows that Switch :31 Vlan100 0 The output shows that Switch A becomes the DR. Configuring OSPFv3 route redistribution Network requirements As shown in Figure 78 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 332
1 and OSPFv3 process 2 run on Switch B. Switch B communicates with Switch A and Switch C through OSPFv3 process 1 and OSPFv3 process 2. • Configure OSPFv3 process 2 to redistribute direct routes and the routes from OSPFv3 process 1 on Switch B, and set the default metric for redistributed routes to - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 333
: Direct NextHop : :: Preference: 0 Interface : NULL0 3. Configure OSPFv3 route redistribution: # Configure OSPFv3 process 2 to redistribute direct routes and the routes from OSPFv3 process 1 on Switch B. [SwitchB] ospfv3 2 [SwitchB-ospfv3-2] default cost 3 [SwitchB-ospfv3-2] import-route - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 334
Protocol : Direct Preference: 0 Cost : 0 Destination: FF00::/8 NextHop : :: Interface : NULL0 Protocol : Direct Preference: 0 Configuring OSPFv3 GR Network requirements • As shown in Figure 79, Switch A, Switch B, and Switch C that reside in the same AS and the same OSPFv3 routing domain are - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 335
79 Network diagram Configuration procedure 1. Configure IPv6 addresses for interfaces. (Details not shown.) 2. Configure basic OSPFv3: # On Switch A, enable OSPFv3 ] quit # On Switch B, enable OSPFv3 and set the router ID to 2.2.2.2. (By default, GR helper is enabled on Switch B.) system - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 336
BFD for OSPFv3 Network requirements As shown in Figure 80: • Configure OSPFv3 on Switch A, Switch B and Switch C and configure BFD over the link Switch AL2 SwitchSwitch B. • After the link Switch AL2 SwitchSwitch B fails, BFD can quickly detect the failure and notify OSPFv3 of - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 337
bfd min-receive-interval 500 [SwitchA-Vlan-interface10] bfd detect-multiplier 7 [SwitchA-Vlan-interface10] return # Enable BFD and configure BFD parameters on Switch B. [SwitchB] bfd session init-mode active [SwitchB] interface vlan-interface 10 [SwitchB-Vlan-interface10] ospfv3 bfd enable [SwitchB - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 338
1 Destination: 2001:4::/64 NextHop : FE80::20F:FF:FE00:1200 Interface : Vlan10 Protocol : OSPFv3 Preference: 10 Cost : 1 The output information shows that Switch A communicates with Switch B through VLAN-interface 10. The link over VLAN-interface 10 fails. # Display routes to 2001:4::0/64 on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 339
. 6. Enter interface view. Command system-view isis [ process-id ] [ vpn-instance vpn-instance-name ] network-entity net ipv6 enable quit interface interface-type interface-number Remarks N/A By default, no IS-IS process is enabled. By default, no NET is configured. The default setting is disabled - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 340
together with the ipv6 import-route command. 7. Configure IPv6 IS-IS to filter inbound routes. ipv6 filter-policy { acl6-number | prefix-list prefix-list-name | route-policy route-policy-name } import By default, IPv6 IS-IS does not filter inbound routes. 8. Configure IPv6 IS-IS to redistribute - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 341
ECMP routes for ipv6 maximum load-balancing number load balancing. Remarks By default, the maximum number of ECMP routes is the same as that configured in the max-ecmp-num command. For more information about the max-ecmp-num command, see IP Routing Command Reference. Configuring BFD for IPv6 IS-IS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 342
in Figure 81, Switch A, Switch B, Switch C, and Switch D, all enabled with IPv6, reside in the same AS. Configure IPv6 IS-IS on the switches so that they can reach each other. Switch A and Switch B are Level-1 switches, Switch D is a Level-2 switch, and Switch C is a Level-1-2 switch. Figure 81 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 343
[SwitchC-Vlan-interface200] quit [SwitchC] interface vlan-interface 300 [SwitchC-Vlan-interface300] isis ipv6 enable 1 [SwitchC-Vlan-interface300] quit # Configure Switch D. system-view [SwitchD] isis 1 [SwitchD-isis-1] is-level level-2 [SwitchD-isis-1] network-entity 20.0000.0000.0004.00 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 344
, U-Up/Down Bit Set # Display the IPv6 IS-IS routing table on Switch B. [SwitchB] display isis route ipv6 Route information for IS-IS(1 Level-1 IPv6 U-Up/Down Bit Set # Display the IPv6 IS-IS routing table on Switch C. [SwitchC] display isis route ipv6 Route information for IS-IS(1 Level-1 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 345
: Vlan300 Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set # Display the IPv6 IS-IS routing table on Switch D. [SwitchD] display isis route ipv6 Route information for IS-IS(1 Level-2 IPv6 Forwarding Table Destination : 2001:1:: Flag : R/-/- Next Hop : FE80::200 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 346
example Network requirements • As shown in Figure 82, configure IPv6 IS-IS on Switch A and Switch B so that they can reach other. • Enable BFD on VLAN-interface 10 of Switch A and Switch B. After the link between Switch B and the Layer-2 switch fails, BFD can quickly detect the failure and notify - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 347
[SwitchB-Vlan-interface10] quit [SwitchB] interface vlan-interface 13 [SwitchB-Vlan-interface13] isis ipv6 enable 1 [SwitchB-Vlan-interface13] quit # Configure Switch C. system-view [SwitchC] isis 1 [SwitchC-isis-1] network-entity 10.0000.0000.0003.00 [SwitchC-isis-1] ipv6 enable [SwitchC - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 348
Destination: 2001:4::/64 NextHop : FE80::20F:FF:FE00:1200 Interface : Vlan10 Protocol : ISISv6 Preference: 15 Cost : 10 The output shows that Switch A and Switch B communicate through VLAN-interface 10. Then the link over VLAN-interface 10 fails. # Display routes destined for 2001:4::0/64 on - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 349
packets and uses the routing table to forward non-matching packets. If PBR is not configured, the device uses the routing table to forward packets. The device supports only interface PBR, which guides the forwarding of packets received on an interface only. Policy An IPv6 policy includes match - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 350
an IPv6 policy or policy node, and enter IPv6 policy node view. Command system-view ipv6 policy-based-route policy-name [ deny | permit ] node node-number Remarks N/A By default, no IPv6 policy node is created. Configuring match criteria for an IPv6 node Step 1. Enter system view. 2. Enter IPv6 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 351
-number ] }& By default, no next hop is specified. You can specify multiple next hops for backup, which are executed in the order they are configured. The value of n is 2. Configuring IPv6 PBR Configure IPv6 PBR by applying an IPv6 policy to an interface. IPv6 PBR uses the policy to guide - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 352
Command display ipv6 policy-based-route interface interface-type interface-number [ slot slot-number ] reset ipv6 policy-based-route statistics [ policy policy-name ] Packet type-based IPv6 interface PBR configuration example Network requirements As shown in Figure 83, configure IPv6 PBR on Switch - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 353
] quit # Configure ACL 3001 to match TCP packets. [SwitchA] acl ipv6 number 3001 [SwitchA- configuration # Enable IPv6 and configure the IPv6 address 10::3 for Host A. C:\>ipv6 install Installing... Succeeded. C:\>ipv6 adu 4/10::3 # On Host A, Telnet to Switch B that is directly connected to Switch - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 354
Telnet uses TCP, and ping uses ICMP. The preceding results show that all TCP packets arriving on VLAN-interface 11 of Switch A are forwarded to next hop 1::2, and other packets are forwarded through VLAN-interface 20. The IPv6 interface PBR configuration is effective. 343 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 355
routing information. For more information about ACLs, see ACL and QoS Configuration Guide. IP prefix list IP prefix lists include IPv4 prefix lists and Configuring RIP" and "Configuring OSPF." An IP prefix list, identified by name, can comprise multiple items. Each item, identified by an index number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 356
information about extended community lists, see MCE Configuration Guide. Routing policy A routing policy can comprise multiple nodes, which are in a logical OR relationship. A node with a smaller number is matched first. A route (except the route configured with the continue clauses) that matches - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 357
path list: Step 1. Enter system view. 2. Configure an AS path list. Command system-view ip as-path as-path-number { deny | permit } regular-expression Remarks N/A By default, no AS path list is configured. Configuring a community list You can configure multiple items for a community list that - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 358
. Command system-view 2. Configure an extended ip extcommunity-list ext-comm-list-number { deny | community list. permit } { rt route-target }& Remarks N/A By default, no extended community list is configured. Configuring a routing policy Configuration prerequisites Configure filters - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 359
is configured. By default, no extended community list match criterion is configured. 8. Match routes having the specified output interface. if-match interface { interface-type interface-number }& By default, no output interface match criterion is configured. This command is not supported by - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 360
IPv6 routing. To configure apply clauses: Step Command Remarks 1. Enter system view. system-view N/A route-policy route-policy-name 2. Enter routing policy node view. { deny | permit } node node-number N/A 3. Set the AS_PATH attribute for BGP routes. apply as-path By default, no AS_PATH - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 361
). apply fast-reroute backup-interface interface-type interface-number [ backup-nexthop ip-address ] By default, no backup link is set for FRR. Configuring a continue clause Follow these guidelines when you configure a continue clause: • If you configure the same type of apply clauses that set - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 362
. continue [ node-number ] By default, no continue clause is configured. The specified next node must have a larger number than the current node. Displaying and maintaining the routing policy Execute display commands in any view and reset commands in user view. Task Command Display BGP AS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 363
enable [SwitchC-Vlan-interface202] quit [SwitchC] interface vlan-interface 203 [SwitchC-Vlan-interface203] isis enable [SwitchC-Vlan-interface203] quit # Configure Switch B. system-view [SwitchB] isis [SwitchB-isis-1] is-level level-2 [SwitchB-isis-1] network-entity 10.0000.0000.0002.00 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 364
SwitchA-ospf-1-area-0.0.0.0] quit [SwitchA-ospf-1] quit # On Switch B, configure OSPF and enable route redistribution from IS-IS. [SwitchB] 0 ASE: 3 NSSA: 0 4. Configure filtering lists: # Configure ACL 2002 to permit route 172.17.2.0/24. [SwitchB] acl number 2002 [SwitchB-acl-basic-2002] rule - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 365
24 is 20. Applying a routing policy to IPv6 route redistribution Network requirements • As shown in Figure 85, run RIPng on Switch A and Switch B. • On Switch A, configure three static routes, and apply a routing policy to static route redistribution to permit routes 20::0/32 and 40::0/32 and deny - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 366
apply the routing policy to static route redistribution. [SwitchA] ripng [SwitchA-ripng-1] import-route static route-policy static2ripng 2. Configure Switch B: # Configure the IPv6 address for VLAN-interface 100. system-view [SwitchB] interface vlan-interface 100 [SwitchB-Vlan-interface100 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 367
via FE80::7D58:0:CA03:1, cost 1, tag 0, A, 8 secs Destination 40::/32, via FE80::7D58:0:CA03:1, cost 1, tag 0, A, 3 secs 356 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 368
Acronyms. Websites • HP.com http://www.hp.com • HP Networking http://www.hp.com/go/networking • HP manuals http://www.hp.com/support/manuals • HP download drivers and software http://www.hp.com/support/downloads • HP software depot http://www.software.hp.com • HP Education http://www.hp.com/learn - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 369
Command conventions Convention Boldface Italic [ ] { x | y | ... } [ x | y | ... ] { x | y | ... } * [ x | y | ... ] * & # Description Bold text represents commands bold text. For example, the New User window appears; click OK. Multi-level or damage to hardware or software. An alert that calls - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 370
wired-WLAN switch. Represents an access point. Represents a security product, such as a firewall, a UTM, or a load-balancing or security card that is installed in a device. Represents a security card, such as a firewall card, a load-balancing card, or a NetStream card. Port numbering in examples - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 371
BGP-IGP route redistribution, 230 IPv6 BGP basic configuration, 257 IPv6 BGP BFD configuration, 263 IPv6 BGP COMMUNITY configuration, 217 IPv6 BGP configuration, 257 IPv6 BGP fake AS number advertisement, 202 IPv6 BGP route reflector configuration, 260 IS-IS default route, 120 IS-IS routes, 122 OSPF - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 372
, 220 BGP configuration, 158, 169 BGP first AS number of EBGP route updates, 205 BGP MED attribute configuration, 195 BGP path IPv4 BGP MED default value, 195 IPv4 BGP path selection configuration, 248 IPv4 BGP private AS number removal, 204 IPv4 BGP route reflector configuration, 242 IPv4 BGP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 373
197 IPv6 BGP MED default value, 195 IPv6 BGP NEXT_HOP, 199 IPv6 BGP private AS number removal, 204 MP-BGP reference value, 64 BDR OSPF, 53 OSPF election, 54 BFD IPv4 BGP configuration, 222, 253 IPv6 BGP configuration, 222, 263 IPv6 IS-IS BFD configuration, 330, 335 IPv6 static route BFD configuration - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 374
AS number of EBGP route updates, 205 GR configuration, 220 GR Helper configuration, 220 GR Restarter configuration, 220 IPv4 EBGP peer protection (low memory exemption), 216 IPv6 EBGP peer protection (low memory exemption), 216 large scale network management, 164 large-scale network configuration - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 375
BGP confederation configuration, 244 max number ECMP routes, 4 IPv4 BGP, 226 IPv4 BGP AS number substitution, manual summarization, 183 IPv6 BGP route preference, 193 IPv6 BGP route reception filtering policies, 189 IPv6 BGP route reflector, 219, 260 IPv6 BGP route update interval, 207 IPv6 default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 376
PBR configuration (interface number ECMP routes, 65 OSPF NBMA network type for interface, 60 OSPF network management, 74 OSPF network type, 59 OSPF NSSA area, 58, 91 OSPF P2MP network type for interface, 61 OSPF P2P network type for interface, 62 OSPF preference, 65 OSPF redistributed route default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 377
325 OSPFv3 DR election, 317 OSPFv3 GR, 311 OSPFv3 GR configuration, 323 OSPFv3 GR Helper, 312 OSPFv3 GR Restarter, 311 OSPFv3 Inter-Area-Prefix LSA filtering, 305 OSPFv3 interface cost, 305 OSPFv3 interface DR priority, 309 OSPFv3 max number ECMP routes, 306 OSPFv3 NBMA neighbor, 304 OSPFv3 network - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 378
timer (OSPF), 68 default BGP default route advertisement to peer/peer group, 184 IPv4 BGP default local preference, 194 IPv4 BGP MED default value, 195 IPv6 BGP default local preference, 194 IPv6 BGP MED default value, 195 IPv6 default route configuration, 285 IS-IS default route advertisement, 120 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 379
static routing BFD (indirect next hop), 281 IS-IS authentication, 147 IS-IS basic configuration, 135 IS-IS BFD configuration, 151 IS-IS DIS election configuration, 140 IS-IS FRR configuration, 154 IS-IS GR configuration, 150 IS-IS route redistribution, 144 OSPF ABR router type, 51 OSPF ASBR router - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 380
from EBGP peer/peer group update, 204 peer, 158 echo BFD single-hop echo detection, 32 IPv6 static route BFD echo mode (single hop), 276 static route BFD echo mode (single-hop), 8 ECMP, 211, See also load balancing IP routing ECMP route max number configuration, 4 IPv4 BGP load balancing, 211 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 381
, 167 MP-BGP MP_UNREACH_NLRI extended attribute, 167 Exterior Gateway Protocol. See EGP external OSPF LSDB max number external LSAs, 72 external BGP. See EBGP F fast reroute. Use FRR FIB IP routing table, 1 filtering BGP configuration, 158, 169 BGP route filtering policies, 186 IPv4 BGP basic - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 382
hop calculation, 79 OSPF backup next hop specification (routing policy), 79 OSPF configuration, 78 OSPF FRR configuration, 104 RIP configuration, 32, 45 static route FRR configuration, 9 static routing FRR configuration, 17 G garbage-collect timer, 28 generating BGP route, 180 OSPFv3 LSA generation - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 383
compatibility, 220 BGP confederation configuration, 219 BGP configuration, 158, 169 BGP default route advertisement to peer/peer group, 184 BGP first AS number of EBGP route updates, 205 BGP GR configuration, 220 BGP GR Helper configuration, 220 BGP GR Restarter configuration, 220 BGP large scale - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 384
table, 4 dynamic routing protocols, 2 ECMP route max number configuration, 4 IPv4. See IPv4 IPv6. See IPv6 IPv6 default route. See under IPv6 static routing IPv6 IS-IS basic configuration, 328, 331 IPv6 IS-IS BFD configuration, 330, 335 IPv6 IS-IS configuration, 328, 331 IPv6 IS-IS route control - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 385
next hop), 12 static routing BFD configuration (indirect next hop), 14 static routing configuration, 6, 10 static routing default route configuration, 19 static routing FRR configuration, 17 IP services OSPF basic configuration, 81 OSPF BFD configuration, 101 OSPF configuration, 48, 55, 81 OSPF DR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 386
, 345 routing policy prefix list, 344 IPv6 BGP 4-byte AS number suppression, 209 AS number substitution, 203 AS_PATH best route selection, 202 basic configuration, 257 BFD configuration, 222, 263 COMMUNITY configuration, 217 configuration, 257 default local preference, 194 displaying, 223 fake AS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 387
, 133, 151 broadcast network type, 112 circuit level configuration, 116 configuration, 108, 115, 135 default route advertisement, 120 DIS election, 112 DIS election configuration, 140 displaying, 135 ECMP routes max number, 119 enabling, 116 FRR automatic backup next hop calculation, 134 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 388
, 128 system ID-host name mapping dynamic configuration, 129 system ID-host name mapping static configuration, 128 terminology, 108 ISPF OSPF ISPF enable, 75 K keepalive BGP message, 158 IPv4 BGP keepalive interval, 206 IPv4 BGP route update interval, 207 IPv6 BGP keepalive interval, 206 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 389
configuration, 236 IPv6 BGP, 211 OSPF ECMP route max number, 65 OSPFv3 max number ECMP routes, 306 RIPng max number ECMP routes, 292 load sharing IP routing load sharing, 3 IS-IS ECMP routes max number, 119 RIP max number ECMP routes, 29 local BGP LOCAL_PREF path attribute, 159 IPv4 BGP default - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 390
manual IPv4 BGP route manual summarization, 183 IPv6 BGP route manual BGP MED default value, 195 update, 158 RIPv1 message zero field check enable, 30 RIPv2 message authentication configuration, 31 metric RIP additional routing metric configuration, 24 RIP interface additional metric configuration - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 391
, 203 IPv4 BGP AS_PATH best route selection, 202 IPv4 BGP BFD configuration, 222 IPv4 BGP community configuration, 217 IPv4 BGP default local preference, 194 IPv4 BGP fake AS number advertisement, 202 IPv4 BGP holdtime, 206 IPv4 BGP IGP route redistribution, 181 IPv4 BGP keepalive interval - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 392
BGP BFD configuration, 222 IPv6 BGP COMMUNITY configuration, 217 IPv6 BGP default local preference, 194 IPv6 BGP fake AS number advertisement, 202 policies, 189 IPv6 BGP route reflector configuration, 219 IPv6 BGP route update interval, 207 IPv6 BGP route update save, 214 IPv6 BGP route-refresh, - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 393
control), 77 OSPF BFD detection (single-hop echo), 78 OSPF broadcast network type configuration for interface, 60 OSPF DD packet interface MTU, 72 OSPF default route redistribution, 66 OSPF ECMP route max number, 65 OSPF exit overflow interval, 73 OSPF FRR backup next hop calculation, 79 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 394
, 29 RIP summary route advertisement configuration, 40 RIP timer configuration, 28 RIP update source IP address check, 30 RIP version configuration, 23 RIP versions, 21 RIPng basic configuration, 287 RIPng default route advertisement, 289 RIPng max number ECMP routes, 292 RIPng packet, 286 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 395
, 230 IPv6 BGP basic configuration, 257 IPv6 BGP BFD configuration, 263 IPv6 BGP configuration, 257 IPv6 BGP route reflector configuration, 260 IPv6 default route configuration, 285 IPv6 IS-IS basic configuration, 328, 331 IPv6 IS-IS BFD configuration, 335 IPv6 IS-IS configuration, 328, 331 IPv6 PBR - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 396
OSPF NSSA area, 51 OSPF NSSA area configuration, 58, 91 OSPF NSSA LSA, 49 OSPF totally NSSA area, 51 number BGP first AS number of EBGP route updates, 205 IPv4 BGP 4-byte AS number suppression, 209 IPv4 BGP AS number substitution, 203 IPv4 BGP fake AS number advertisement, 202 IPv4 BGP local AS - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 397
NSSA area, 51 totally stub area, 51 troubleshooting configuration, 106 troubleshooting incorrect routing information, 107 troubleshooting no neighbor relationship established, 106 Type-3 LSA filtering configuration, 64 virtual link, 97 virtual link configuration, 59 virtual links, 50 OSPFv3, 299 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 398
, 75 OSPF LSAck, 48 OSPF LSDB max number external LSAs, 72 OSPF LSR, 48 OSPF LSU, 48 OSPF LSU transmit rate, 74 OSPF RFC 1583 compatibility, 73 OSPF stub router configuration, 71 OSPFv3 area configuration, 313 OSPFv3 BFD configuration, 325 OSPFv3 configuration, 299, 300, 313 OSPFv3 DD, 299 OSPFv3 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 399
(per-AS), 197 IPv4 BGP MED default value, 195 IPv4 BGP NEXT_HOP attribute, 199 IPv4 BGP path selection configuration, 248 IPv6 BGP MED AS route configuration, 175 IPv6 EBGP peer protection (low memory exemption), 216 IPv6 IBGP peer group configuration, 174 permitting IPv4 BGP local AS number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 400
IP prefix list configuration, 345 priority IS-IS interface DIS priority, 123 IS-IS route convergence priority, 127 OSPF route level priority, 52 OSPFv3 interface DR priority, 309 procedure advertising BGP default route to peer/peer group, 184 advertising IPv4 BGP fake AS number, 202 advertising IPv6 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 401
group, 175 configuring IPv4 IBGP peer group, 174 configuring IPv6 BGP, 257 configuring IPv6 BGP AS number substitution, 203 configuring IPv6 BGP basics, 257 configuring IPv6 BGP BFD, 222, 263 configuring IPv6 BGP COMMUNITY, 217 configuring IPv6 BGP default local preference, 194 configuring IPv6 BGP - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 402
IS-IS circuit level, 116 configuring IS-IS DIS election, 140 configuring IS-IS ECMP routes max number, 119 configuring IS-IS FRR, 133, 154 configuring IS-IS FRR automatic backup next hop calculation, 134 configuring IS-IS FRR configuration using routing policy, 134 configuring IS-IS global cost, 118 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 403
additional routing metric, 24 configuring RIP basics, 22, 34 configuring RIP BFD, 32 configuring RIP FRR, 32, 45 configuring RIP GR, 31 configuring RIP interface additional metric, 38 configuring RIP max number ECMP routes, 29 configuring RIP packet send rate, 31 configuring RIP poison reverse, 29 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 404
configuring static route FRR, 9 configuring static routing, 10 configuring static routing basics, 10 configuring static routing BFD (direct next hop), 12 configuring static routing BFD (indirect next hop), 14 configuring static routing default route, 19 configuring 4-byte AS number suppression, 209 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 405
, 30 enabling RIPv2 automatic route summarization, 25 enhancing IS-IS network security, 130 generating BGP route, 180 ignoring BGP first AS number of EBGP route updates, 205 ignoring OSPFv3 DD packet MTU check, 310 injecting IPv4 BGP local network, 181 injecting IPv6 BGP local network, 181 limiting - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 406
configuration, 40 timer configuration, 28 update source IP address check, 30 version configuration, 23 versions, 21 RIPng, 286, See also RIP basic configuration, 287, 293 configuration, 286, 287, 293 default route advertisement, 289 displaying, 293 GR configuration, 292 maintaining, 293 max number - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 407
filters, 344 IP routing ECMP route max number configuration, 4 IP routing load sharing, 3 IP update interval, 207 IPv6 BGP route update save, 214 IPv6 BGP routes received from peer/peer group, 185 IPv6 default route configuration, 285 IPv6 IS-IS route control, 329 IPv6 static route BFD configuration - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 408
route filtering, 27 RIP route control configuration, 24 RIP route entries, 20 RIP route redistribution configuration, 27, 36 RIP split horizon configuration, 29 RIP update source IP address check, 30 RIPng default route advertisement, 289 RIPng max number ECMP routes, 292 RIPng preference, 289 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 409
147 IS-IS automatic cost calculation enable, 119 IS-IS basic configuration, 116, 135 IS-IS BFD configuration, 133, 151 IS-IS configuration, 108, 115, 135 IS-IS default route advertisement, 120 IS-IS DIS election configuration, 140 IS-IS ECMP routes max number, 119 IS-IS FRR automatic backup next hop - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 410
, 40 RIP timer configuration, 28 RIP update source IP address check, 30 RIP version configuration, 23 RIP versions, 21 RIPng basic configuration, 287, 293 RIPng configuration, 286, 287, 293 RIPng default route advertisement, 289 RIPng GR configuration, 292 RIPng max number ECMP routes, 292 - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 411
mapping (static), 128 routing. See static routing static routing basic configuration, 10 BFD configuration (direct next hop), 12 BFD configuration (indirect next hop), 14 configuration, 6, 10 default route configuration, 19 displaying, 10 FRR configuration, 17 IPv6. See IPv6 static routing route - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 412
suppression, 209 IPv6 BGP 4-byte AS number suppression, 209 switch IPv4 BGP basic configuration, 226 IPv4 BGP BFD configuration, 253 IPv4 BGP COMMUNITY configuration, 239 IPv4 BGP confederation configuration, 244 IPv4 BGP configuration, 226 IPv4 BGP GR configuration, 252 IPv4 BGP load balancing - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 413
, 28 RIP timeout timer, 28 RIP update timer, 28 RIPng timer configuration, 290 TLV IPv6 IS-IS basic configuration, 331 IPv6 IS-IS BFD configuration, 335 IPv6 IS-IS configuration, 328, 331 topology IPv6 default route configuration, 285 IPv6 static route configuration, 274 IPv6 static routing basic - HP 6125XLG | R2306-HP 6125XLG Blade Switch Layer 3 - IP Routing Configuration Gu - Page 414
ECMP route max number configuration, 4 IP routing load sharing, 3 IP routing route backup, 3 IP routing route preference, 2 IP routing route recursion, 3 IP routing route redistribution, 3 OSPF network type, 53 update timer, 28 updating BGP update message, 158 IPv4 BGP route update, 214 IPv4 BGP
HP 6125XLG Blade Switch
Layer 3
—
IP Routing
Configuration Guide
Part number: 5998-3719
Software version: Rlease 2306
Document version: 6W100-20130912