HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 53
Configuring BFD for RIP (bidirectional control detection mode), Network requirements
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State: Inactive Adv Age: 00h12m50s Tag: 0 When the link over VLAN-interface 100 fails, Switch A can quickly detect the change. # Display the BFD session information on Switch A. display bfd session Switch A has deleted the BFD session on VLAN-interface 100 to Switch C and displays no output. # Display the RIP routes of RIP process 1 on Switch A. display rip 1 route Route Flags: R - RIP, T - TRIP P - Permanent, A - Aging, S - Suppressed, G - Garbage-collect The output shows that the RIP route learned from Switch C no longer exists. # Display routes destined for 100.1.1.0/24 on Switch A. display ip routing-table 100.1.1.0 24 verbose Routing Table : Public Summary Count : 1 Destination: 100.1.1.0/24 Protocol: RIP Preference: 100 IpPrecedence: NextHop: 192.168.2.2 BkNextHop: 0.0.0.0 RelyNextHop: 0.0.0.0 Tunnel ID: 0x0 BKTunnel ID: 0x0 State: Active Adv Tag: 0 Process ID: 2 Cost: 2 QosLcId: Interface: vlan-interface 200 BkInterface: Neighbor : 192.168.2.2 Label: NULL BKLabel: NULL Age: 00h18m40s Configuring BFD for RIP (bidirectional control detection mode) Network requirements In the following figure, Switch A is connected to Switch C through Switch B. VLAN-interface 100 on Switch A, VLAN-interface 200 on Switch C, and VLAN-interface 200 and VLAN-interface 100 on Switch B run RIP process 1. Configure a static route to Switch C on Switch A, and configure a static route to Switch A on Switch C. Enable BFD on VLAN-interface 100 of Switch A and VLAN-interface 200 of Switch C. Switch A is connected to Switch C through Switch D. VLAN-interface 300 on Switch A runs RIP process 2; VLAN-interface 400 on Switch C, and VLAN-interface 300 and VLAN-interface 400 on Switch D run RIP process 1. Enable static route redistribution into RIP on Switch A and Switch C so that Switch A and Switch C have routes to send to each other. Switch A learns the static route sent by Switch C, the output interface is the interface connected to Switch B. Configure BFD so that when the link between Switch B and Switch C fails, BFD can quickly detect the link failure and notify it to RIP, and the BFD session goes down. In response, RIP deletes the neighbor 43