大型BGP组网.docx

本文格式为Word版，下载可任意编辑大型BGP组网 从测验现象细致分析BGP的路由策略与选路原那么 1.1 组网需求 1） AS65001边界网段发布：R2，R5重发布直连路由至ospf（metric 1000 type 1） 2） AS65002 边界网段发布：R1，R6network至ospf，并配置被动接口 3） R3，R4发布业务网段至ospf1 area0 （10.13.3.0/24、10.14.4.0/24、10.15.4.0/24） 4） BGP配置要求 No synchronization No auto-summary Neighborupdate-source loopback0 Neighbornext-hop-self 5） R2,R3，R4，R5都运行BGP；R3，R4为同簇RR（簇ID为R3loopback0），R2，R5都分别为R3，R4 的客户端，且R3与R4之间建立普遍的IBGP邻居 6） R3，R4发布AS65001的汇总路由至BGP：10.10.0.0/16、10.13.0.0/16、10.14.0.0/16、10.15.0.0/16 7） R1，R6发布AS65002的汇总路由至BGP：10.200.0.0/16、10.30.0.0/16 1.2 组网拓扑 1.3 选路需求 AS 65002(R1，R6)去往10.13.0.0/16的主路径走R1—R2 AS 65002 (R1，R6)去往10.14.0.0/16、10.15.0.0/16的主路径走R6—R5 AS 65001 (R2,R3,R4,R5)去往10.20.0.0/16的主路径走R2—R1 AS 65001 (R2,R3,R4,R5)去往10.30.0.0/16的主路径走R5—R6 1.4 根本连通性测试 1.5 BGP配置及调测 1） BGP配置 R3(config)# router bgp 65001 bgp cluster-id 10.10.0.3 bgp log-neighbor-changes network 10.10.0.0 mask 255.255.0.0 network 10.13.0.0 mask 255.255.0.0 network 10.14.0.0 mask 255.255.0.0 network 10.15.0.0 mask 255.255.0.0 neighbor as65001-rr peer-group neighbor as65001-rr remote-as 65001 neighbor as65001-rr update-source Loopback0 neighbor as65001-rr route-reflector-client neighbor as65001-rr next-hop-self neighbor 10.10.0.2 peer-group as65001-rr neighbor 10.10.0.4 remote-as 65001 neighbor 10.10.0.4 update-source Loopback0 neighbor 10.10.0.4 next-hop-self neighbor 10.10.0.5 peer-group as65001-rr no auto-summary ! ip http server no ip http secure-server ip route 10.10.0.0 255.255.0.0 Null0 ip route 10.13.0.0 255.255.0.0 Null0 ip route 10.14.0.0 255.255.0.0 Null0 ip route 10.15.0.0 255.255.0.0 Null0 R4(config)# router ospf 1 router-id 10.10.0.4 log-adjacency-changes passive-interface Ethernet1/1 passive-interface Ethernet1/2 network 10.10.0.4 0.0.0.0 area 0 network 10.10.1.4 0.0.0.3 area 0 network 10.10.1.8 0.0.0.3 area 0 network 10.14.4.0 0.0.0.255 area 0 network 10.15.4.0 0.0.0.255 area 0 ! router bgp 65001 no synchronization bgp cluster-id 10.10.0.3 network 10.10.0.0 mask 255.255.0.0 network 10.13.0.0 mask 255.255.0.0 network 10.14.0.0 mask 255.255.0.0 network 10.15.0.0 mask 255.255.0.0 neighbor as65001-rr peer-group neighbor as65001-rr remote-as 65001 neighbor as65001-rr update-source Loopback0 neighbor as65001-rr route-reflector-client neighbor as65001-rr next-hop-self neighbor 10.10.0.2 peer-group as65001-rr neighbor 10.10.0.3 remote-as 65001 neighbor 10.10.0.3 update-source Loopback0 neighbor 10.10.0.3 next-hop-self neighbor 10.10.0.5 peer-group as65001-rr no auto-summary ! no ip http secure-server ip route 10.10.0.0 255.255.0.0 Null0 ip route 10.13.0.0 255.255.0.0 Null0 ip route 10.14.0.0 255.255.0.0 Null0 ip route 10.15.0.0 255.255.0.0 Null0 R2(config)# router bgp 65001 no synchronization bgp log-neighbor-changes neighbor 10.10.0.3 remote-as 65001 neighbor 10.10.0.3 update-source Loopback0 neighbor 10.10.0.3 next-hop-self neighbor 10.10.0.4 remote-as 65001 neighbor 10.10.0.4 update-source Loopback0 neighbor 10.10.0.4 next-hop-self neighbor 10.10.12.1 remote-as 65002 neighbor 10.10.12.1 route-map as65002-in in no auto-summary R5(config)#(略) R1(config)# router bgp 65002 no synchronization bgp log-neighbor-changes network 10.20.0.0 mask 255.255.0.0 network 10.30.0.0 mask 255.255.0.0 neighbor 10.10.12.2 remote-as 65001 neighbor 10.10.12.2 route-map as65001-in in neighbor 10.30.0.5 remote-as 65002 neighbor 10.30.0.5 update-source Loopback0 neighbor 10.30.0.5 next-hop-self no auto-summary no ip http secure-server — 5 —。