实验目的
MPLS VPN 跨域OptionC1
实验过程
- AS内底层ISIS互通，24.57建立BGP邻居，45建立EBGP邻居，27配置MP-EBGP邻居
- 4.5宣告PE7策略路由，4.5上配置策略，使7MP-EBGP邻居建立
- 12，78之间互相引入路由
1.AS内底层ISIS互通，24.57建立IBGP邻居，27建立MP-EBGP邻居
AS234配置举例
R2
sy
sy R2
mpls lsr 2.2.2.2
mpls
mpls ldp
isis 1
cost-style wide
network-entity 49.0001.0000.0000.0002.00
is-name R2
is-level level-2
int l0
ip address 2.2.2.2 32
isis enable 1
int g0/0/0
ip ad 192.168.12.2 24
int g0/0/1
ip ad 192.168.23.2 24
isis enable 1
mpls
mpls ldp
bgp 234
rou 2.2.2.2
pe 4.4.4.4 as 234
pe 4.4.4.4 connect-interface l0
pe 7.7.7.7 as 567
pe 7.7.7.7 connect-interface l0
pe 7.7.7.7 ebgp-max-hop
ipv4-family vpnv4
peer 7.7.7.7 enable
R3
sy
sy R3
mpls lsr 3.3.3.3
mpls
mpls ldp
isis 1
cost-style wide
network-entity 49.0001.0000.0000.0003.00
is-name R3
is-level level-2
int l0
ip address 3.3.3.3 32
isis enable 1
int g0/0/0
ip ad 192.168.34.3 24
isis enable 1
mpls
mpls ldp
int g0/0/1
ip ad 192.168.23.3 24
isis enable 1
mpls
mpls ldp
R4
sy
sy R4
mpls lsr 4.4.4.4
mpls
mpls ldp
isis 1
cost-style wide
network-entity 49.0001.0000.0000.0004.00
is-name R4
is-level level-2
int l0
ip address 4.4.4.4 32
isis enable 1
int g0/0/0
ip ad 192.168.34.4 24
isis enable 1
mpls
mpls ldp
int g0/0/1
ip ad 192.168.45.4 24
mpls
bgp 234
rou 4.4.4.4
pe 2.2.2.2 as 234
pe 2.2.2.2 connect-interface l0
pe 192.168.45.5 as 567
验证
4.5宣告PE2.7策略路由，4.5上配置策略，使2.7MP-EBGP邻居建立
R4
sy
mpls
lsp-trigger bgp-label-route
route-policy 4 permit node 10
apply mpls-label
route-policy 5 permit node 10
if mpls-label
apply mpls-label
bgp 234
net 2.2.2.2 32
peer 192.168.45.5 route-policy 4 export
peer 192.168.45.5 label-route-capability
peer 2.2.2.2 route-policy 5 export
peer 2.2.2.2 label-route-capability
R5
sy
mpls
lsp-trigger bgp-label-route
route-policy 4 permit node 10
apply mpls-label
route-policy 5 permit node 10
if mpls-label
apply mpls-label
bgp 567
net 7.7.7.7 32
peer 192.168.45.4 route-policy 4 export
peer 192.168.45.4 label-route-capability
peer 7.7.7.7 route-policy 5 export
peer 7.7.7.7 label-route-capability
27MP-EBGP邻居建立成功
12，78之间互相引入路由
R2
sy
ip vpn-instance 2
route-distinguisher 234:2
vpn-target 1:2 export-extcommunity
vpn-target 2:1 import-extcommunity
isis 2 vpn-instance 2
cost-style wide
network-entity 49.0001.0000.0000.0002.00
is-name R2
is-level level-2
int g0/0/0
ip binding vpn-instance 2
ip ad 192.168.12.2 24
isis enable 2
isis 2 vpn-instance 2
import-route bgp
bgp 234
ipv4-family vpn-instance 2
import-route isis 2
R1
sy
sy R1
isis 1
cost-style wide
network-entity 49.0001.0000.0000.0001.00
is-name R1
is-level level-2
int l0
ip address 1.1.1.1 32
isis enable 1
int g0/0/0
ip ad 192.168.12.1 24
isis en 1
