MPLS的配置实验

实验拓扑

配置步骤

1.Core IGP

在MPLS 域内配置

if# ip add 10.1.0.1 255.255.255.255
if# ip add 10.1.12.1 255.255.255.0

con# router rip
 #version 2
 #network 10.0.0.0
 #no auto-summary

2.MPLS

在MPLS域内配置

R1(config)#ip cef
R1(config)#mpls label range 100 199
R1(config)#mpls ldp router-id lo0 force
R1(config)#mpls ip
R1(config)#int s2/1
R1(config-if)#mpls ip
R1(config)#int s2/0
R1(config-if)#mpls ip

检查

R1#show mpls forwarding-table 

3.MBGP

有新旧两种方法可使用

router bgp 1
 bgp router-id 10.1.0.3
 bgp log-neighbor-changes
 !
 scope global
  neighbor 10.1.0.5 remote-as 1
  neighbor 10.1.0.5 update-source Loopback0
  !
  address-family ipv4
  !
  !
  address-family v4
   neighbor 10.1.0.5 activate
   neighbor 10.1.0.5 send-community extended

router bgp 1
 bgp router-id 10.1.0.5
 bgp log-neighbor-changes
 no bgp default ipv4-unicast
 neighbor 10.1.0.3 remote-as 1
 neighbor 10.1.0.3 update-source Loopback0
 !
 address-family ipv4
  neighbor 10.1.0.3 activate
 exit-address-family
 !
 address-family v4
  neighbor 10.1.0.3 activate
  neighbor 10.1.0.3 send-community extended
 exit-address-family
 

检查

R5#show bgp v4 unicast all summary    //查看v4的路由
R5#show bgp ipv4 unicast summary     //查看internet ipv4的路由

4.CE-PE

建立vrf A
ip vrf A
 rd 1:1
 route-target 1:1

将属于global的接口划入vrf A
R5(config)#int s2/0
R5(config-if)#ip vrf forwarding A
R5(config-if)#no sh  
R5(config-if)#ip add 192.168.56.5 255.255.255.0

可支持IPV6的新配置方法

R3(config)#vrf definition A
R3(config-vrf)#rd 1:1
R3(config-vrf)#route-target 1:1
R3(config-vrf)#address-family ipv4
R3(config-vrf-af)#route-target 1:1

R3(config)#int s2/0
R3(config-if)#vrf forwarding A
R3(config-if)#ip add 192.168.34.3 255.255.255.0

查看vrf的路由表

R5#show ip route vrf A

R6(config)#router rip 
R6(config-router)#ver 2
R6(config-router)#no au
R6(config-router)#network 192.168.56.0
R6(config-router)#network 6.0.0.0 

R5(config)#router rip
R5(config-router)#address-family ip  vrf A 
R5(config-router-af)#ver 2
R5(config-router-af)#no au 
R5(config-router-af)#net 192.168.56.0

R3、R4 配置同R5、R6

5.CE-PE重分布进BGP（可选）

R5(config)#router bgp 1
R5(config-router)#address-family ipv4 vrf A
R5(config-router-af)#redistribute rip 

R3(config-router-af)#router bgp 1
R3(config-router)#scope vrf A
R3(config-router-scope)#address-family ipv4
R3(config-router-scope-af)#redistribute rip

6.BGP重分布CE-PE（可选）

R5(config-router-af)#router rip
R5(config-router)#address-family ipv4 vrf A
R5(config-router-af)#redistribute bgp 1 metric 1

R3(config)#router rip
R3(config-router)#address-family ipv4 vrf A
R3(config-router-af)#redistribute bgp 1 metric 1

实验结果