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HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 133

stub (OSPF area view

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Based on its LSDB, an OSPF router calculates the shortest path tree with itself being the root, and uses it to determine the next hop to a destination. Through adjusting the SPF calculation interval, you can protect bandwidth and router resources from being over-consumed due to frequent network changes. With this command configured, when network changes are not frequent, SPF calculation applies at the minimum-interval. If network changes become frequent, the SPF calculation interval is incremented by the incremental-interval each time a calculation happens, up to the maximum-interval. Examples # Configure the SPF calculation maximum interval as 10 seconds, minimum interval as 500 milliseconds and incremental interval as 200 milliseconds. system-view [Sysname] ospf 100 [Sysname-ospf-100] spf-schedule-interval 10 500 200 stub (OSPF area view) Syntax stub [ default-route-advertise-always | no-summary ] * View undo stub OSPF area view Default level 2: System level Parameters default-route-advertise-always: Usable only on a stub ABR. With this keyword configured, the ABR advertises a default route in a Type-3 LSA into the stub area regardless of whether FULL-state neighbors exist in the backbone area. Without this keyword, the ABR advertises a default route in a Type-3 LSA into the stub area only when at least one FULL-state neighbor exists in the backbone area. no-summary: Usable only on a stub ABR. With this keyword configured, the ABR advertises only a default route in a Summary LSA into the stub area (such a stub area is a totally stub area). Description Use stub to configure an area as a stub area. Use undo stub to remove the configuration. No area is stub area by default. To cancel the default-route-advertise-always or the no-summary configuration on the ABR, execute the stub command again to overwrite it. To configure an area as a stub area, all routers attached to it must be configured with this command. Related commands: default-cost. Examples # Configure Area1 as a stub area. system-view [Sysname] ospf 100 [Sysname-ospf-100] area 1 122

Section	Page
Title Page	1
Layer 3 - IP Routing Command Reference	3
Basic IP routing commands	12
display ip routing-table	12
display ip routing-table acl	16
display ip routing-table ip-address	19
display ip routing-table ip-prefix	21
display ip routing-table protocol	23
display ip routing-table statistics	24
display ipv6 routing-table	25
display ipv6 routing-table acl	27
display ipv6 routing-table ipv6-address	28
display ipv6 routing-table ipv6-prefix	30
display ipv6 routing-table protocol	31
display ipv6 routing-table statistics	32
reset ip routing-table statistics protocol	33
reset ipv6 routing-table statistics	34
Static routing configuration commands	35
delete static-routes all	35
ip route-static	35
ip route-static default-preference	38
RIP configuration commands	39
checkzero	39
default cost (RIP view)	39
default-route	40
display rip	41
display rip database	43
display rip interface	44
display rip route	45
dscp (RIP view)	47
filter-policy export (RIP view)	47
filter-policy import (RIP view)	49
host-route	50
import-route (RIP view)	51
maximum load-balancing (RIP view)	52
network	52
output-delay	53
peer	53
preference	54
reset rip process	55
reset rip statistics	55
rip	56
rip authentication-mode	56
rip bfd enable	57
rip default-route	58
rip input	59
rip metricin	59
rip metricout	60
rip mib-binding	61
rip output	62
rip poison-reverse	62
rip split-horizon	63
rip summary-address	63
rip version	64
silent-interface (RIP view)	65
summary	65
timers	66
validate-source-address	67
version	68
OSPF configuration commands	69
abr-summary (OSPF area view)	69
area (OSPF view)	70
asbr-summary	70
authentication-mode	71
bandwidth-reference (OSPF view)	72
default	73
default-cost (OSPF area view)	73
default-route-advertise (OSPF view)	74
description (OSPF/OSPF area view)	75
display ospf abr-asbr	76
display ospf asbr-summary	77
display ospf brief	78
display ospf cumulative	81
display ospf error	83
display ospf interface	85
display ospf lsdb	87
display ospf nexthop	89
display ospf peer	90
display ospf peer statistics	93
display ospf request-queue	94
display ospf retrans-queue	95
display ospf routing	97
display ospf vlink	98
display router id	99
dscp (OSPF view)	100
enable link-local-signaling	100
enable log	101
enable out-of-band-resynchronization	101
filter	102
filter-policy export (OSPF view)	103
filter-policy import (OSPF view)	104
graceful-restart (OSPF view)	105
graceful-restart help	106
graceful-restart interval (OSPF view)	107
host-advertise	107
import-route (OSPF view)	108
ispf enable	109
log-peer-change	110
lsa-arrival-interval	110
lsa-generation-interval	111
lsdb-overflow-limit	112
maximum load-balancing (OSPF view)	112
maximum-routes	113
network (OSPF area view)	114
nssa	114
opaque-capability enable	115
ospf	116
ospf authentication-mode	117
ospf bfd enable	118
ospf cost	119
ospf dr-priority	119
ospf mib-binding	120
ospf mtu-enable	120
ospf network-type	121
ospf packet-process prioritized-treatment	122
ospf timer dead	123
ospf timer hello	123
ospf timer poll	124
ospf timer retransmit	125
ospf trans-delay	125
peer	126
preference	127
reset ospf counters	127
reset ospf process	128
reset ospf redistribution	129
rfc1583 compatible	129
router id	130
silent-interface (OSPF view)	130
snmp-agent trap enable ospf	131
spf-schedule-interval	132
stub (OSPF area view)	133
stub-router	134
transmit-pacing	134
vlink-peer (OSPF area view)	135
BGP configuration commands	137
aggregate	137
balance (BGP/BGP-VPN instance view)	138
bestroute as-path-neglect (BGP/BGP-VPN instance view)	139
bestroute compare-med (BGP/BGP-VPN instance view)	140
bestroute med-confederation (BGP/BGP-VPN instance view)	140
bgp	141
compare-different-as-med (BGP/BGP-VPN instance view)	142
confederation id	142
confederation nonstandard	143
confederation peer-as	144
dampening (BGP/BGP-VPN instance view)	145
default ipv4-unicast	146
default local-preference (BGP/BGP-VPN instance view)	146
default med (BGP/BGP-VPN instance view)	147
default-route imported (BGP/BGP-VPN instance view)	148
display bgp group	149
display bgp network	150
display bgp paths	151
display bgp peer	152
display bgp peer received ip-prefix	155
display bgp routing-table	156
display bgp routing-table as-path-acl	158
display bgp routing-table cidr	159
display bgp routing-table community	160
display bgp routing-table community-list	161
display bgp routing-table dampened	162
display bgp routing-table dampening parameter	163
display bgp routing-table different-origin-as	164
display bgp routing-table flap-info	164
display bgp routing-table label	166
display bgp routing-table peer	166
display bgp routing-table regular-expression	167
display bgp routing-table statistic	168
display router id	169
ebgp-interface-sensitive	169
filter-policy export (BGP/BGP-VPN instance view)	170
filter-policy import (BGP/BGP-VPN instance view)	171
graceful-restart (BGP view)	172
graceful-restart timer restart	173
graceful-restart timer wait-for-rib	174
group (BGP/BGP-VPN instance view)	174
ignore-first-as	175
import-route (BGP/BGP-VPN instance view)	176
log-peer-change	177
network (BGP/BGP-VPN instance view)	177
network short-cut (BGP/BGP-VPN instance view)	178
peer advertise-community (BGP/BGP-VPN instance view)	179
peer advertise-ext-community (BGP/BGP-VPN instance view)	180
peer allow-as-loop (BGP/BGP-VPN instance view)	180
peer as-number (BGP/BGP-VPN instance view)	181
peer as-path-acl (BGP/BGP-VPN instance view)	182
peer bfd	183
peer capability-advertise conventional	184
peer capability-advertise orf	184
peer capability-advertise orf non-standard	185
peer capability-advertise route-refresh	186
peer capability-advertise suppress-4-byte-as	187
peer connect-interface (BGP/BGP-VPN instance view)	188
peer default-route-advertise (BGP/BGP-VPN instance view)	189
peer description (BGP/BGP-VPN instance view)	190
peer dscp (BGP/BGP-VPN instance view)	190
peer ebgp-max-hop (BGP/BGP-VPN instance view)	191
peer enable (BGP/BGP-VPN instance view)	192
peer fake-as (BGP/BGP-VPN instance view)	193
peer filter-policy (BGP/BGP-VPN instance view)	193
peer group (BGP/BGP-VPN instance view)	194
peer ignore (BGP/BGP-VPN instance view)	195
peer ip-prefix	196
peer keep-all-routes (BGP/BGP-VPN instance view)	197
peer log-change (BGP/BGP-VPN instance view)	197
peer next-hop-local (BGP/BGP-VPN instance view)	198
peer password	199
peer preferred-value (BGP/BGP-VPN instance view)	200
peer public-as-only (BGP/BGP-VPN instance view)	201
peer reflect-client (BGP/BGP-VPN instance view)	202
peer route-limit (BGP/BGP-VPN instance view)	202
peer route-policy (BGP/BGP-VPN instance view)	203
peer route-update-interval (BGP/BGP-VPN instance view)	204
peer substitute-as (BGP/BGP-VPN instance view)	205
peer timer (BGP/BGP-VPN instance view)	206
preference (BGP/BGP-VPN instance view)	207
reflect between-clients (BGP view/BGP-VPN instance view)	208
reflector cluster-id (BGP view/BGP-VPN instance view)	209
refresh bgp	209
reset bgp	210
reset bgp dampening	211
reset bgp flap-info	211
reset bgp ipv4 all	212
router id	212
router-id	213
summary automatic	214
synchronization (BGP view)	214
timer (BGP/BGP-VPN instance view)	215
IPv6 static routing configuration commands	217
delete ipv6 static-routes all	217
ipv6 route-static	217
RIPng configuration commands	219
checkzero	219
default cost (RIPng view)	219
display ripng	220
display ripng database	221
display ripng interface	222
display ripng route	224
filter-policy export (RIPng view)	225
filter-policy import (RIPng view)	226
import-route	227
maximum load-balancing (RIPng view)	228
preference	229
reset ripng process	230
reset ripng statistics	230
ripng	230
ripng default-route	231
ripng enable	232
ripng metricin	232
ripng metricout	233
ripng poison-reverse	234
ripng split-horizon	234
ripng summary-address	235
timers	235
OSPFv3 configuration commands	237
abr-summary (OSPFv3 area view)	237
area (OSPFv3 view)	237
bandwidth-reference	238
default cost	239
default-cost (OSPFv3 area view)	239
default-route-advertise	240
display ospfv3	241
display ospfv3 graceful-restart status	242
display ospfv3 interface	244
display ospfv3 lsdb	245
display ospfv3 lsdb statistic	249
display ospfv3 next-hop	250
display ospfv3 peer	251
display ospfv3 peer statistics	253
display ospfv3 request-list	254
display ospfv3 retrans-list	256
display ospfv3 routing	258
display ospfv3 statistics	259
display ospfv3 topology	260
display ospfv3 vlink	261
filter-policy export (OSPFv3 view)	263
filter-policy import (OSPFv3 view)	264
graceful-restart enable	265
graceful-restart helper enable	265
graceful-restart helper strict-lsa-checking	266
graceful-restart interval	266
import-route (OSPFv3 view)	267
log-peer-change	268
maximum load-balancing (OSPFv3 view)	268
ospfv3	269
ospfv3 area	270
ospfv3 cost	270
ospfv3 dr-priority	271
ospfv3 mtu-ignore	272
ospfv3 network-type	272
ospfv3 peer	273
ospfv3 timer dead	273
ospfv3 timer hello	274
ospfv3 timer retransmit	275
ospfv3 timer poll	275
ospfv3 trans-delay	276
preference	277
router-id	277
silent-interface(OSPFv3 view)	278
spf timers	279
stub (OSPFv3 area view)	279
vlink-peer (OSPFv3 area view)	280
IPv6 BGP configuration commands	282
aggregate (IPv6 address family view)	282
balance (IPv6 address family view)	283
bestroute as-path-neglect (IPv6 address family view)	284
bestroute compare-med (IPv6 address family view)	284
bestroute med-confederation (IPv6 address family view)	285
compare-different-as-med (IPv6 address family view)	286
dampening (IPv6 address family view)	286
default local-preference (IPv6 address family view)	287
default med (IPv6 address family view)	288
default-route imported (IPv6 address family view)	288
display bgp ipv6 group	289
display bgp ipv6 network	291
display bgp ipv6 paths	292
display bgp ipv6 peer	293
display bgp ipv6 peer received ipv6-prefix	297
display bgp ipv6 routing-table	298
display bgp ipv6 routing-table as-path-acl	300
display bgp ipv6 routing-table community	301
display bgp ipv6 routing-table community-list	302
display bgp ipv6 routing-table dampened	303
display bgp ipv6 routing-table dampening parameter	304
display bgp ipv6 routing-table different-origin-as	305
display bgp ipv6 routing-table flap-info	306
display bgp ipv6 routing-table peer	307
display bgp ipv6 routing-table regular-expression	308
display bgp ipv6 routing-table statistic	309
filter-policy export (IPv6 address family view)	309
filter-policy import (IPv6 address family view)	310
group (IPv6 address family view)	311
import-route (IPv6 address family view)	312
ipv6-family	313
network (IPv6 address family view)	313
peer advertise-community (IPv6 address family view)	314
peer advertise-ext-community (IPv6 address family view)	315
peer allow-as-loop (IPv6 address family view)	315
peer as-number (IPv6 address family view)	316
peer as-path-acl (IPv6 address family view)	317
peer capability-advertise orf	317
peer capability-advertise orf non-standard (IPv6 address family view)	319
peer capability-advertise route-refresh	319
peer capability-advertise suppress-4-byte-as (IPv6 address family view)	320
peer connect-interface (IPv6 address family view)	321
peer default-route-advertise	321
peer description (IPv6 address family view)	322
peer dscp (IPv6 address family view)	323
peer ebgp-max-hop (IPv6 address family view)	324
peer enable (IPv6 address family view)	324
peer fake-as (IPv6 address family view)	325
peer filter-policy (IPv6 address family view)	326
peer group (IPv6 address family view)	326
peer ignore (IPv6 address family view)	327
peer ipv6-prefix	328
peer keep-all-routes (IPv6 address family view)	328
peer log-change (IPv6 address family view)	329
peer next-hop-local (IPv6 address family view)	330
peer password	330
peer preferred-value (IPv6 address family view)	331
peer public-as-only (IPv6 address family view)	332
peer reflect-client (IPv6 address family view)	333
peer route-limit (IPv6 address family view)	333
peer route-policy (IPv6 address family view)	334
peer route-update-interval (IPv6 address family view)	335
peer substitute-as (IPv6 address family view)	336
peer timer (IPv6 address family view)	337
preference (IPv6 address family view)	338
reflect between-clients (IPv6 address family view)	338
reflector cluster-id (IPv6 address family view)	339
refresh bgp ipv6	340
reset bgp ipv6	340
reset bgp ipv6 dampening	341
reset bgp ipv6 flap-info	342
router-id	342
synchronization (IPv6 address family view)	343
timer (IPv6 address family view)	344
Routing policy configuration commands	345
Common routing policy configuration commands	345
apply as-path	345
apply comm-list delete	345
apply community	346
apply cost	347
apply cost-type	348
apply extcommunity	348
apply local-preference	349
apply origin	350
apply preference	350
apply preferred-value	351
apply tag	352
continue	352
display ip as-path	353
display ip community-list	354
display ip extcommunity-list	355
display route-policy	355
if-match as-path	356
if-match community	357
if-match cost	358
if-match extcommunity	358
if-match interface	359
if-match route-type	359
if-match tag	360
ip as-path	361
ip community-list	361
ip extcommunity-list	363
route-policy	363
IPv4 routing policy configuration commands	364
apply ip-address next-hop	364
display ip ip-prefix	365
if-match acl	366
if-match ip	366
if-match ip-prefix	367
ip ip-prefix	368
reset ip ip-prefix	369
IPv6 routing policy configuration commands	369
apply ipv6 next-hop	369
display ip ipv6-prefix	370
if-match ipv6	371
ip ipv6-prefix	372
reset ip ipv6-prefix	373
MCE configuration commands	374
description	374
display bgp vpnv4 vpn-instance group	374
display bgp vpnv4 vpn-instance network	376
display bgp vpnv4 vpn-instance paths	377
display bgp vpnv4 vpn-instance peer	378
display bgp vpnv4 vpn-instance routing-table	381
display fib vpn-instance	383
display fib vpn-instance ip-address	386
display ip vpn-instance	387
domain-id	388
export route-policy	389
ext-community-type	390
filter-policy export	390
filter-policy import	391
import route-policy	392
ip binding vpn-instance	392
ip vpn-instance	393
ipv4-family vpn-instance	393
peer allow-as-loop	394
peer group	395
refresh bgp vpn-instance	395
reset bgp vpn-instance	396
reset bgp vpn-instance dampening	397
reset bgp vpn-instance flap-info	397
route-distinguisher	398
routing-table limit	399
vpn-instance-capability simple	399
vpn-target	400
Support and other resources	402
Contacting HP	402
Subscription service	402
Related information	402
Documents	402
Websites	402
Conventions	403
Command conventions	403
GUI conventions	403
Symbols	403
Network topology icons	404
Port numbering in examples	404

Match case Limit results 1 per page

122

Based on its LSDB, an OSPF router calculates the shortest path tree with itself being the root, and uses it

to determine the next hop to a destination. Through adjusting the SPF calculation interval, you can protect

bandwidth and router resources from being over-consumed due to frequent network changes.

With this command configured, when network changes are not frequent, SPF calculation applies at the

minimum-interval.

If network changes become frequent, the SPF calculation interval is incremented by the

incremental-interval

each time a calculation happens, up to the

maximum-interval

Examples

# Configure the SPF calculation maximum interval as 10 seconds, minimum interval as 500 milliseconds

and incremental interval as 200 milliseconds.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] spf-schedule-interval 10 500 200

stub (OSPF area view)

Syntax

stub

[

default-route-advertise-always

no-summary

] *

undo stub

View

OSPF area view

Default level

2: System level

Parameters

default-route-advertise-always

: Usable only on a stub ABR. With this keyword configured, the ABR

advertises a default route in a Type-3 LSA into the stub area regardless of whether

FULL

-state neighbors

exist in the backbone area. Without this keyword, the ABR advertises a default route in a Type-3 LSA into

the stub area only when at least one

FULL

-state neighbor exists in the backbone area.

no-summary

: Usable only on a stub ABR. With this keyword configured, the ABR advertises only a

default route in a Summary LSA into the stub area (such a stub area is a totally stub area).

Description

Use

stub

to configure an area as a stub area.

Use

undo stub

to remove the configuration.

No area is stub area by default.

To cancel the

default-route-advertise-always

or the

no-summary

configuration on the ABR, execute the

stub

command again to overwrite it.

To configure an area as a stub area, all routers attached to it must be configured with this command.

Related commands:

default-cost

Examples

# Configure Area1 as a stub area.

<Sysname> system-view

[Sysname] ospf 100

[Sysname-ospf-100] area 1

HP 6125G HP 6125G &amp; 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 133

stub (OSPF area view

Page 133 highlights

HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Comma - Page 133