跨运营商的MPLS ×××解决方案2

待我称王封你为后i 2022-10-01 14:00 160阅读 0赞

拓扑：

[![140846872.png][]][140846872.png]

配置：

R1(PE):

<table> 
 <tbody> 
 <tr> 
 <td> interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface FastEthernet0/0 &nbsp;ip address 192.168.12.1 255.255.255.0 router rip &nbsp;version 2 &nbsp;network 1.0.0.0 &nbsp;network 192.168.12.0 &nbsp;no auto-summary </td> 
 </tr> 
 </tbody> 
</table>

R2(PE):

<table> 
 <tbody> 
 <tr> 
 <td> ip vrf a rd 1:1 route-target export 1:1 route-target export 2:2 route-target import 1:1 route-target import 2:2 mpls label range 200 299 mpls label protocol ldp interface Loopback0 ip address 2.2.2.2 255.255.255.255 ! interface FastEthernet0/0 ip vrf forwarding a ip address 192.168.12.2 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 192.168.23.2 255.255.255.0 duplex auto speed auto mpls ip ! router ospf 100 router-id 2.2.2.2 log-adjacency-changes network 2.2.2.2 0.0.0.0 area 0 network 192.168.23.0 0.0.0.255 area 0 ! router rip ! address-family ipv4 vrf a redistribute bgp 100 metric transparent network 192.168.12.0 no auto-summary version 2 exit-address-family ! router bgp 100 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor 3.3.3.3 remote-as 100 neighbor 3.3.3.3 update-source Loopback0 ! address-family ipv4 neighbor 3.3.3.3 activate neighbor 3.3.3.3 send-label no auto-summary no synchronization exit-address-family ! address-family ***v4 neighbor 3.3.3.3 activate neighbor 3.3.3.3 send-community extended exit-address-family ! address-family ipv4 vrf a redistribute rip no synchronization exit-address-family mpls ldp router-id Loopback0 </td> 
 </tr> 
 </tbody> 
</table>

R3(RR):

<table> 
 <tbody> 
 <tr> 
 <td>mpls label range 300 399 mpls label protocol ldp interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface FastEthernet0/0 ip address 192.168.34.3 255.255.255.0 duplex auto speed auto mpls ip ! interface FastEthernet0/1 ip address 192.168.23.3 255.255.255.0 duplex auto speed auto mpls ip ! router ospf 100 router-id 3.3.3.3 log-adjacency-changes network 3.3.3.3 0.0.0.0 area 0 network 192.168.23.0 0.0.0.255 area 0 network 192.168.34.0 0.0.0.255 area 0 ! router bgp 100 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor 2.2.2.2 remote-as 100 neighbor 2.2.2.2 update-source Loopback0 neighbor 4.4.4.4 remote-as 100 neighbor 4.4.4.4 update-source Loopback0 neighbor 6.6.6.6 remote-as 200 neighbor 6.6.6.6 ebgp-multihop 255 neighbor 6.6.6.6 update-source Loopback0 ! address-family ipv4 neighbor 2.2.2.2 activate neighbor 2.2.2.2 route-reflector-client neighbor 2.2.2.2 send-label neighbor 4.4.4.4 activate neighbor 4.4.4.4 send-label no auto-summary no synchronization exit-address-family ! address-family ***v4 neighbor 2.2.2.2 activate neighbor 2.2.2.2 send-community extended neighbor 2.2.2.2 route-reflector-client neighbor 6.6.6.6 activate neighbor 6.6.6.6 send-community extended neighbor 6.6.6.6 next-hop-unchanged exit-address-family mpls ldp router-id Loopback0</td> 
 </tr> 
 </tbody> 
</table>

R4(PE-ASBR):

<table> 
 <tbody> 
 <tr> 
 <td>mpls label range 400 499 mpls label protocol ldp interface Loopback0 ip address 4.4.4.4 255.255.255.255 ! interface FastEthernet0/0 ip address 192.168.34.4 255.255.255.0 duplex auto speed auto mpls ip ! interface FastEthernet0/1 ip address 192.168.45.4 255.255.255.0 duplex auto speed auto ! router ospf 100 router-id 4.4.4.4 log-adjacency-changes network 4.4.4.4 0.0.0.0 area 0 network 192.168.34.0 0.0.0.255 area 0 ! router bgp 100 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor 3.3.3.3 remote-as 100 neighbor 3.3.3.3 update-source Loopback0 neighbor 192.168.45.5 remote-as 200 ! address-family ipv4 neighbor 3.3.3.3 activate neighbor 3.3.3.3 next-hop-self neighbor 3.3.3.3 send-label neighbor 192.168.45.5 activate neighbor 192.168.45.5 send-label no auto-summary no synchronization network 2.2.2.2 mask 255.255.255.255 network 3.3.3.3 mask 255.255.255.255 exit-address-family mpls ldp router-id Loopback0 </td> 
 </tr> 
 </tbody> 
</table>

R5(PE-ASBR):

<table> 
 <tbody> 
 <tr> 
 <td>mpls label range 500 599 mpls label protocol ldp interface Loopback0 ip address 5.5.5.5 255.255.255.255 ! interface FastEthernet0/0 ip address 192.168.56.5 255.255.255.0 duplex auto speed auto mpls ip ! interface FastEthernet0/1 ip address 192.168.45.5 255.255.255.0 duplex auto speed auto ! router ospf 200 router-id 5.5.5.5 log-adjacency-changes network 5.5.5.5 0.0.0.0 area 0 network 192.168.56.0 0.0.0.255 area 0 ! router bgp 200 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor 6.6.6.6 remote-as 200 neighbor 6.6.6.6 update-source Loopback0 neighbor 192.168.45.4 remote-as 100 ! address-family ipv4 neighbor 6.6.6.6 activate neighbor 6.6.6.6 next-hop-self neighbor 6.6.6.6 send-label neighbor 192.168.45.4 activate neighbor 192.168.45.4 send-label no auto-summary no synchronization network 6.6.6.6 mask 255.255.255.255 network 7.7.7.7 mask 255.255.255.255 exit-address-family mpls ldp router-id Loopback0 </td> 
 </tr> 
 </tbody> 
</table>

R6(RR):

<table> 
 <tbody> 
 <tr> 
 <td>mpls label range 600 699 mpls label protocol ldp interface Loopback0 ip address 6.6.6.6 255.255.255.255 ! interface FastEthernet0/0 ip address 192.168.56.6 255.255.255.0 duplex auto speed auto mpls ip ! interface FastEthernet0/1 ip address 192.168.67.6 255.255.255.0 duplex auto speed auto mpls ip ! router ospf 200 router-id 6.6.6.6 log-adjacency-changes network 6.6.6.6 0.0.0.0 area 0 network 192.168.56.0 0.0.0.255 area 0 network 192.168.67.0 0.0.0.255 area 0 ! router bgp 200 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor 3.3.3.3 remote-as 100 neighbor 3.3.3.3 ebgp-multihop 255 neighbor 3.3.3.3 update-source Loopback0 neighbor 5.5.5.5 remote-as 200 neighbor 5.5.5.5 update-source Loopback0 neighbor 7.7.7.7 remote-as 200 neighbor 7.7.7.7 update-source Loopback0 ! address-family ipv4 neighbor 5.5.5.5 activate neighbor 5.5.5.5 send-label neighbor 7.7.7.7 activate neighbor 7.7.7.7 route-reflector-client neighbor 7.7.7.7 send-label no auto-summary no synchronization exit-address-family ! address-family ***v4 neighbor 3.3.3.3 activate neighbor 3.3.3.3 send-community extended neighbor 3.3.3.3 next-hop-unchanged neighbor 7.7.7.7 activate neighbor 7.7.7.7 send-community extended neighbor 7.7.7.7 route-reflector-client exit-address-family mpls ldp router-id Loopback0 </td> 
 </tr> 
 </tbody> 
</table>

R7(PE):

<table> 
 <tbody> 
 <tr> 
 <td>ip vrf b rd 2:2 route-target export 2:2 route-target export 1:1 route-target import 2:2 route-target import 1:1 ! mpls label range 700 799 mpls label protocol ldp interface Loopback0 ip address 7.7.7.7 255.255.255.255 ! interface FastEthernet0/0 ip vrf forwarding b ip address 192.168.78.7 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 ip address 192.168.67.7 255.255.255.0 duplex auto speed auto mpls ip ! router ospf 200 router-id 7.7.7.7 log-adjacency-changes network 7.7.7.7 0.0.0.0 area 0 network 192.168.67.0 0.0.0.255 area 0 ! router rip ! address-family ipv4 vrf b redistribute bgp 200 metric transparent network 192.168.78.0 no auto-summary version 2 exit-address-family ! router bgp 200 no bgp default ipv4-unicast bgp log-neighbor-changes neighbor 6.6.6.6 remote-as 200 neighbor 6.6.6.6 update-source Loopback0 ! address-family ipv4 neighbor 6.6.6.6 activate neighbor 6.6.6.6 send-label no auto-summary no synchronization exit-address-family ! address-family ***v4 neighbor 6.6.6.6 activate neighbor 6.6.6.6 send-community extended exit-address-family ! address-family ipv4 vrf b redistribute rip no synchronization exit-address-family ! mpls ldp router-id Loopback0 </td> 
 </tr> 
 </tbody> 
</table>

R8(CE):

<table> 
 <tbody> 
 <tr> 
 <td>interface Loopback0 ip address 8.8.8.8 255.255.255.0 ! interface FastEthernet0/0 ip address 192.168.78.8 255.255.255.0 duplex auto speed auto ! router rip version 2 network 8.0.0.0 network 192.168.78.0 no auto-summary</td> 
 </tr> 
 </tbody> 
</table>

验证：

[![142522916.png][]][142522916.png]

转载于:https://blog.51cto.com/692344/1052612

[140846872.png]: https://s1.51cto.com/attachment/201211/140846872.png
[142522916.png]: https://s1.51cto.com/attachment/201211/142522916.png