BGPTraning(简化).pptVIP

* Lesson Aim Enter lesson aim here. * Lesson Aim Enter lesson aim here. * * * * * Lesson Aim Enter lesson aim here. * * * * * * 谢谢大家！ * * 在入或出方向过滤as-path属性. 也称为 “as-path” 过滤. 配置案例 router bgp 3847 neighbor 00 remote-as 2900 neighbor 00 distribute-list 100 in neighbor 00 distribute-list 101 out neighbor 00 filter-list 10 in ip as-path access-list 10 permit ^2900$ ip as-path access-list 10 deny .* Filter List (1) * * AS Path 过滤 3847 6201 D A C B E 701 F 6202 G 路由器B仅仅接受从6201和6202的路由，其它拒绝 ip as-path access-list 10 permit ^6201$ ip as-path access-list 10 permit ^6201_6202$ ip as-path access-list 10 deny .* * * Route Maps Route-maps 是Cisco技术，用于选择或者修改路由. * * Route Maps (2) 格式如下: route-map name per|deny # [match statements] [set satements] [repeat with unique sequence numbers as needed] * * 监控BGP路由 Fred#show ip bgp summary BGP table version is 8, main routing table version 8 4 network entries (8/12 paths) using 832 bytes of memory 5 BGP path attribute entries using 576 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 2 received paths for inbound soft reconfiguration Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 4 213 80 81 8 0 0 01:15:51 2 4 387 79 81 0 0 0 00:00:15 Active 4 213 82 82 0 0 0 02:15:23 Idle show ip bgp summary router * * 监控BGP邻居 Fred#show ip bgp neighbor BGP neighbor is , remote AS 213, external link Index 3, Offset 0, Mask 0x8 BGP version 4, remote router ID BGP state = Established, table version = 11, up for 01:23:05 Last read 00:00:05, hold time is 180, keepalive interval is 60 seconds Minimum time between advertisement runs is 30 seconds Received 92 messages, 0 notifications, 0 in queue Sent 92 messages, 0 notifications, 0 in queue Connections established 1; dropped 0 Last re