內網先運行igp
R1:
router ospf 110
router-id 1.1.1.1
network 1.1.1.1 0.0.0.0 area 0
network 12.1.1.1 0.0.0.0 area 0
network 13.1.1.1 0.0.0.0 area 0
r2
router ospf 110
router-id 2.2.2.2
network 2.2.2.2 0.0.0.0 area 0
network 12.1.1.2 0.0.0.0 area 0
netw
r3:
router ospf 110
router-id 3.3.3.3
network 13.1.1.3 0.0.0.0 area 0
network 3.3.3.3 0.0.0.0 area 0
啓用mpls
r1
ip cef
mpls label protocol ldp // 思科需要敲 數據層面：啓用mpls的轉發機制，在發數據的時候嘗試打標。 ldp/tdp的宣告 新設備默認ldp
mpls ldp router-id loopback 0 force // force 無論當前是否建立ldp鄰居 都拿loopback0 來做傳輸地址
mpls ip
int e0/0
mpls ip
r2
ip cef
mpls ip
mpls label protocol ldp
mpls ldp router-id loopback 0 force
int e0/1
mpls ip
r3
ip cef
mpls ip
mpls label protocol ldp
mpls ldp router-id loopback 0 force
int e0/0
mpls ip
查看命令
show mpls ldp neighbor
show mpls ldp bindings 查看FIB
show mpls forwarding-table
建立bgp
r4:
router bgp 4 //as號
no auto-summary
no synchronization
bgp router-id 4.4.4.4
neighbor 24.1.1.2 remote-as 10 //默認自動建立ipv4的鄰居關係。
network 8.8.8.0 mask 255.255.255.0
r2
router bgp 10
no auto-summary
no synchronization
bgp router-id 2.2.2.2
neighbor 24.1.1.4 remote-as 4
neighbor 3.3.3.3 remote-as 10
neighbor 3.3.3.3 updatesource loopback 0
neighbor 3.3.3.3 next-hop-self
r3
router bgp 10
no auto-summary
no synchronization
bgp router-id 3.3.3.3
neighbor 35.1.1.5 remote-as 5
neighbor 2.2.2.2 update-source 3.3.3.3
neighbor 2.2.2.2 remote-as 10
neighbor 2.2.2.2 next-hop-self
r5
router bgp 5
no auto-summary
no synchronization
bgp router-id 5.5.5.5
neighbor 35.1.1.3 remote-as 10
network 9.9.9.0 mask 255.255.255.0