第34章 MPLS VPN PE和CE运行EBGP

图片[1]-第34章 MPLS VPN PE和CE运行EBGP-大赛人网
图34-1 MPLS VPN  PE和CE运行EBGP配置网络拓扑

1.CE1配置本端PE建立EBGP邻居关系

[CE1]bgp 12
[CE1-bgp]peer 12.1.1.2 as-number 12
[CE1-bgp]import-route direct

2.CE2配置本端PE建立EBGP邻居关系

[CE2]bgp 34
[CE2-bgp]peer 34.1.1.3 as-number 34
[CE2-bgp]import-route direct 

3.PE1配置VPN实例

[PE1]ip vpn-instance vpn1
[PE1-vpn-instance-vpn1]route-distinguisher 1:1
[PE1-vpn-instance-vpn1-af-ipv4]vpn-target 1:1 export-extcommunity
[PE1-vpn-instance-vpn1-af-ipv4]vpn-target 1:1 import-extcommunity

4.PE1配置MPLS、LDP

[PE1]mpls lsr-id 2.2.2.2
[PE1]mpls
[PE1]mpls ldp 
[PE1]interface GigabitEthernet 0/0/0
[PE1-GigabitEthernet0/0/0]mpls ldp  
[PE1]interface GigabitEthernet 0/0/1
[PE1-GigabitEthernet0/0/1]ip binding vpn-instance vpn1
//私网侧接口与VPN绑定
[PE1-GigabitEthernet0/0/1]ip address 12.1.1.2 8

5.PE1配置BGP

[PE1]bgp 23
[PE1-bgp]peer 3.3.3.3 as-number 23
[PE1-bgp]peer 3.3.3.3 connect-interface LoopBack 0
[PE1-bgp]ipv4-family vpnv4
[PE1-bgp-af-vpnv4]policy vpn-target
[PE1-bgp-af-vpnv4]peer 3.3.3.3 enable
//使能对等体交换VPNv4路由信息的能力
[PE1-bgp]ipv4-family vpn-instance vpn1
[PE1-bgp-vpn1]import-route direct
[PE1-bgp-vpn1]peer 12.1.1.1 as-number 12
//将本端CE1配置为VPN私网对等体

6.PE1配置PE之间OSPF路由

[PE1]ospf 1 router-id 2.2.2.2
[PE1-ospf-1]area 0
[PE1-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[PE1-ospf-1-area-0.0.0.0]network 23.1.1.0 0.255.255.255

7.PE2配置VPN实例

[PE2]ip vpn-instance vpn1
[PE2-vpn-instance-vpn1]route-distinguisher 1:1
[PE2-vpn-instance-vpn1-af-ipv4]vpn-target 1:1 export-extcommunity
[PE2-vpn-instance-vpn1-af-ipv4]vpn-target 1:1 import-extcommunity

8.PE2配置MPLS、LDP

[PE2]mpls lsr-id 3.3.3.3
[PE2]mpls
[PE2]mpls ldp
[PE2]interface GigabitEthernet 0/0/0
[PE2-GigabitEthernet0/0/0]mpls 
[PE2-GigabitEthernet0/0/0]mpls ldp
[PE2]interface GigabitEthernet 0/0/1
[PE2-GigabitEthernet0/0/1]ip binding vpn-instance vpn1
[PE2-GigabitEthernet0/0/1]ip address 34.1.1.3 8
//私网侧接口与VPN绑定

9.PE2配置BGP

[PE2]bgp 23
[PE2-bgp]peer 2.2.2.2 as-number 23
[PE2-bgp]peer 2.2.2.2 connect-interface LoopBack 0
[PE2-bgp]ipv4-family vpnv4
[PE2-bgp-af-vpnv4]policy vpn-target 
[PE2-bgp-af-vpnv4]peer 2.2.2.2 enable
//使能对等体交换VPNv4路由信息的能力
[PE2-bgp]ipv4-family vpn-instance vpn1
[PE2-bgp-vpn1]import-route direct
[PE2-bgp-vpn1]peer 34.1.1.4 as-number 34
//将本端CE2配置为VPN私网对等体

10.PE2配置PE之间OSPF路由

[PE2]ospf 1 router-id 3.3.3.3
[PE2-ospf-1]area 0
[PE2-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[PE2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.255.255.255
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