BGP Dynamic Update Peer-Groups
Материал из Xgu.ru
< BGP
[править] Пример работы
На примере конфигурации:
router bgp 3333 bgp log-neighbor-changes network 123.1.1.0 mask 255.255.255.0 neighbor 2.2.2.2 remote-as 3333 neighbor 2.2.2.2 update-source Loopback0 neighbor 2.2.2.2 next-hop-self neighbor 3.3.3.3 remote-as 3333 neighbor 3.3.3.3 update-source Loopback0 neighbor 3.3.3.3 next-hop-self neighbor 4.4.4.4 remote-as 3333 neighbor 4.4.4.4 update-source Loopback0 neighbor 4.4.4.4 next-hop-self neighbor 70.1.1.100 remote-as 900 neighbor 70.1.1.100 prefix-list OUR-NET out neighbor 70.1.1.100 route-map AS900-IN in ! route-map AS900-IN permit 10 set local-preference 150 ! ip prefix-list OUR-NET seq 5 permit 123.1.1.0/24
[править] Просмотр информации
R1#sh ip bgp update-group
BGP version 4 update-group 3, internal, Address Family: IPv4 Unicast
BGP Update version : 93/0, messages 0
NEXT_HOP is always this router for eBGP paths
Topology: global, highest version: 93, tail marker: 93
Format state: Current working (OK, last not in list)
Refresh blocked (not in list, last not in list)
Update messages formatted 52, replicated 132, current 0, refresh 0, limit 1000
Number of NLRIs in the update sent: max 7, min 0
Minimum time between advertisement runs is 0 seconds
Has 3 members:
2.2.2.2 3.3.3.3 4.4.4.4
BGP version 4 update-group 4, external, Address Family: IPv4 Unicast
BGP Update version : 93/0, messages 0
Outgoing update prefix filter list is OUR-NET
Topology: global, highest version: 93, tail marker: 93
Format state: Current working (OK, last minimum advertisement interval)
Refresh blocked (not in list, last not in list)
Update messages formatted 8, replicated 8, current 0, refresh 0, limit 1000
Number of NLRIs in the update sent: max 2, min 0
Minimum time between advertisement runs is 30 seconds
Has 1 member:
70.1.1.100
R1#sh ip bgp update-group summary Summary for Update-group 3, Address Family IPv4 Unicast BGP router identifier 70.1.1.1, local AS number 3333 BGP table version is 93, main routing table version 93 11 network entries using 1584 bytes of memory 12 path entries using 720 bytes of memory 16/8 BGP path/bestpath attribute entries using 2176 bytes of memory 7 BGP AS-PATH entries using 232 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 4712 total bytes of memory BGP activity 11/0 prefixes, 62/50 paths, scan interval 60 secs Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 2.2.2.2 4 3333 408 405 93 0 0 05:21:40 1 3.3.3.3 4 3333 354 398 93 0 0 05:21:35 0 4.4.4.4 4 3333 356 398 93 0 0 05:21:36 0 Summary for Update-group 4, Address Family IPv4 Unicast BGP router identifier 70.1.1.1, local AS number 3333 BGP table version is 93, main routing table version 93 Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 11 network entries using 1584 bytes of memory 12 path entries using 720 bytes of memory 16/8 BGP path/bestpath attribute entries using 2176 bytes of memory 7 BGP AS-PATH entries using 232 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory 0 BGP filter-list cache entries using 0 bytes of memory BGP using 4712 total bytes of memory BGP activity 11/0 prefixes, 62/50 paths, scan interval 60 secs Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 70.1.1.100 4 900 421 391 93 0 0 05:39:59 10
R1#sh ip bgp replication
Current Next
Index Members Leader MsgFmt MsgRepl Csize Version Version
3 3 2.2.2.2 52 132 0/1000 93/0
4 1 70.1.1.100 8 8 0/1000 93/0
