BGP后门链路

http://tech.ddvip.com   2007年09月12日    社区交流 收藏本文

内容摘要:本文介绍BGP后门链路

   Network     Next Hop      Metric LocPrf Weight Path

  *> 192.1.1.0    196.1.1.5               0 100 200 i

  *> 194.1.1.0    0.0.0.0         0     32768 i

  r3#sh ip ro bgp

  B  192.1.1.0/24 [20/0] via 196.1.1.5, 00:02:28

  r3#sh ip ro       //后门链路作用前

   1.0.0.0/32 is subnetted, 1 subnets

  O    1.1.1.1 [110/21] via 193.1.1.2, 00:04:22, Ethernet0/0

   2.0.0.0/32 is subnetted, 1 subnets

  O    2.2.2.2 [110/11] via 193.1.1.2, 00:04:22, Ethernet0/0

   3.0.0.0/24 is subnetted, 1 subnets

  C    3.3.3.0 is directly connected, Loopback0

   4.0.0.0/32 is subnetted, 1 subnets

  O    4.4.4.4 [110/11] via 194.1.1.4, 00:04:22, Ethernet1/0

  C  196.1.1.0/24 is directly connected, Serial3/0

  C  193.1.1.0/24 is directly connected, Ethernet0/0

  B  192.1.1.0/24 [20/0] via 196.1.1.5, 00:00:06

  O  195.1.1.0/24 [110/74] via 193.1.1.2, 00:04:22, Ethernet0/0

  C  194.1.1.0/24 is directly connected, Ethernet1/0

  //后门链路作用后

  r3#sh ip ro

   1.0.0.0/32 is subnetted, 1 subnets

  O    1.1.1.1 [110/21] via 193.1.1.2, 00:06:38, Ethernet0/0

   2.0.0.0/32 is subnetted, 1 subnets

  O    2.2.2.2 [110/11] via 193.1.1.2, 00:06:38, Ethernet0/0

   3.0.0.0/24 is subnetted, 1 subnets

  C    3.3.3.0 is directly connected, Loopback0

   4.0.0.0/32 is subnetted, 1 subnets

  O    4.4.4.4 [110/11] via 194.1.1.4, 00:06:38, Ethernet1/0

  C  196.1.1.0/24 is directly connected, Serial3/0

  C  193.1.1.0/24 is directly connected, Ethernet0/0

  O  192.1.1.0/24 [110/20] via 193.1.1.2, 00:00:06, Ethernet0/0

  O  195.1.1.0/24 [110/74] via 193.1.1.2, 00:06:38, Ethernet0/0

  C  194.1.1.0/24 is directly connected, Ethernet1/0

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