基于isis的mpls文档.docx

基于ISIS的mpls vpn一、实验拓扑：二、底层ip地址配置：路由器接口ip地址R1(xx-1)Loopback0:192.168.1.1/24F1/0:13.13.13.1/24R2(hh-1)Loopback0:192.168.2.1/24F1/0:23.23.23.2/24R3(PE-1)Loopback0:3.3.3.3/24F1/0:13.13.13.3/24F1/1:23.23.23.3/24F2/0:34.34.34.3/24R4(P)Loopback0:4.4.4.4/24F1/0:34.34.34.4/24F1/1:45.45.45.4/24R5(PE-2)Loopback0:5.5.5.5/24F1/0:45.45.45.5/24F1/1:56.56.56.5/24F2/0:57.57.57.5/24R6(xx-2)Loopback0:192.168.6.1/24F1/0:56.56.56.6/24R7(hh-2)Loopback0:192.168.7.1F1/0:57.57.57.7/24三CE设备起ospf协议：R1:router ospf 1network 13.13.13.0 0.0.0.255 area 0 network 192.168.1.0 0.0.0.255 area 0R2:router ospf 1 network 23.23.23.0 0.0.0.255 area 0 network 192.168.2.0 0.0.0.255 area 0R6:router ospf 1 log-adjacency-changes network 56.56.56.0 0.0.0.255 area 0 network 192.168.6.0 0.0.0.255 area 0R7: router ospf 1network 57.57.57.0 0.0.0.255 area 0 network 192.168.7.0 0.0.0.255 area 0四、在PE设备上做vrf的配置。R3(config)#ip vrf xxR3(config-vrf)#rd 1:1R3(config-vrf)#route-target 1:1R3(config-vrf)#exiR3(config)#int f1/0R3(config-if)#ip vrf forwarding xxR3(config-if)#exiR3(config)#ip vrf hhR3(config-vrf)#rd 2:2R3(config-vrf)#route-target 2:2R3(config-vrf)#exiR3(config)#int f1/2R3(config-if)#ip vrf forwarding hhR3(config-if)#exit五、在PE设备上起ospf协议R3(config)#router ospf 13 vrf xxR3(config-router)#network 13.13.13.0 0.0.0.255 area 0R3(config-router)#exiR3(config)#router ospf 23 vrf hhR3(config-router)#network 23.23.23.0 0.0.0.255 area 0R3(config-router)#exi六、ISP上用路由协议。注:目前只有ospf和isis支持mpls流量工程。R3(config)#clns routingR3(config)#router isisR3(config-router)#net 49.0534.0000.0000.0001.00R3(config-router)#metric 20 level-1R3(config)#int f2/0R3(config-if)#ip router isisR3(config)#int loopback 0R3(config-if)#ip router isisR(config)#clns routingR(config)#router isisR(config-router)#net 49.0534.0000.0000.000.00R(config-router)#metric 20 level-1R(config)#int f/0R(config-if)#ip router isisR3(config)#int f/R(config-if)#ip router isisR3(config)#int loopback 0R3(config-if)#ip router isisRconfig)#clns routingR(config)#router isisR(config-router)#net 49.0534.0000.0000.000.00R(config-router)#metric 20 level-1R(config)#int f/0R(config-if)#ip router isisR(config)#int loopback 0R(config-if)#ip router isis七、在上做。R3(config)#router bgp 345R3(config-router)#bgp router-id 3.3.3.3R3(config-router)#no bgp default ipv4-unicast R3(config-router)#nei 5.5.5.5 remote-as 345R3(config-router)#nei 5.5.5.5 update-source loopback 0R3(config-router)#address-family vpnv4 R3(config-router-af)#nei 5.5.5.5 activate R3(config-router-af)#exiR5(config)#router bgp 345R5(config-router)#bgp router-id 5.5.5.5R5(config-router)#no bgp default ipv4-unicast R5(config-router)#nei 3.3.3.3 remote-as 345R5(config-router)#nei 3.3.3.3 update-source loo 0 R5(config-router)#address-family vpnv4 R5(config-router-af)#nei 3.3.3.3 activate八、上起Mpls:R3(config)#mpls ldp router-id loopback 0R3(config)#int f2/0R3(config-if)#mpls ipR4(config)#mpls ldp router-id loopback 0R4(config)#int f1/0R4(config-if)#mpls ipR4(config)#int f1/1R4(config-if)#mpls ipR5(config)#mpls ldp router-id loopback 0R5(config)#int f1/0R5(config-if)#mpls ip九、引入客户路由。R3(config)#router bgp 345R3(config-router)#address-family ipv4 vrf xxR3(config-router-af)#redistribute connected R3(config-router-af)#redistribute ospf 13 vrf xxR(config)#router bgp 345R(config-router)#address-family ipv4 vrf xxR(config-router-af)#redistribute connected R(config-router-af)#redistribu