Lab 7 AS-Override and Soo
Topology:
实验目的：理解AS-override and soo。
Step 1、配置各台路由器的IP地址，并且使用Ping命令确认各路由器的直连口的互通性。
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R1: lo 0:1.1.1.1/32 s0/0:12.1.1.1/24 R2: lo 0:2.2.2.2/32 s0/0:12.1.1.2/24 s0/1:23.1.1.2/24 R3: lo 0:3.3.3.3/32 s0/0:23.1.1.3/24 s0/1:34.1.1.3/24 s0/2:35.1.1.3/24 R4: lo 0:4.4.4.4/32 s0/0:34.1.1.4/24 s0/1:45.1.1.4/24 R5: lo 0:5.5.5.5/32 s0/0:35.1.1.5/24 s0/1:45.1.1.5/24 |
Step 2、R2,R3配置ospf
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R2: router ospf 100 router-id 2.2.2.2 net 2.2.2.2 0.0.0.0 area 0 net 23.1.1.0 0.0.0.255 area 0 |
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R3: router ospf 100 router-id 3.3.3.3 net 3.3.3.3 0.0.0.0 area 0 net 23.1.1.0 0.0.0.255 area 0 |
Step 3.配置mpls
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R2: mpls label range 2000 2999 mpls label protocol ldp mpls ldp router-id lo 0
int s0/1 mpls ip |
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R3: mpls label range 3000 3999 mpls label protocol ldp mpls ldp router-id lo 0
int s0/0 mpls ip |
step 4.配置vrf
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R2: ip vrf AAA rd 100:1 route-target both 100:1
int s0/0 ip vrf forwarding AAA ip add 12.1.1.2 255.255.255.0 |
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R3: ip vrf AAA rd 100:1 route-target both 100:1
int s0/1 ip vrf forwarding AAA ip add 34.1.1.3 255.255.255.0
int s0/2 ip vrf forwarding AAA ip add 35.1.1.3 255.255.255.0 |
step 5.配置mp-bgp
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R2: router bgp 23 no au no sy bgp router-id 2.2.2.2 nei 3.3.3.3 remote-as 23 nei 3.3.3.3 update-source lo 0 no bgp default ipv4-unicast address-family vpnv4 nei 3.3.3.3 activate exit address-family ipv4 vrf AAA nei 12.1.1.1 remote-as 1 nei 12.1.1.1 activate nei 12.1.1.1 as-override no au no sy red conn exit |
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R3: router bgp 23 no au no sy bgp router-id 3.3.3.3 nei 2.2.2.2 remote-as 23 nei 2.2.2.2 update-source lo 0 no bgp default ipv4-unicast address-family vpnv4 nei 2.2.2.2 activate exit address-family ipv4 vrf AAA no au no sy nei 34.1.1.4 remote-as 1 nei 34.1.1.4 activate nei 34.1.1.4 as-override nei 35.1.1.5 remote-as 1 nei 35.1.1.5 activate nei 35.1.1.5 as-override red conn exit |
step 6.r1,r5,r4配置bgp.
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R1: router bgp 1 no au no sy bgp router-id 1.1.1.1 nei 12.1.1.2 remote-as 23 net 1.1.1.1 mask 255.255.255.255 |
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R4: router bgp 1 no au no sy bgp router-id 4.4.4.4 nei 34.1.1.3 remote-as 23 nei 5.5.5.5 remote-as 1 nei 5.5.5.5 update-source lo 0 nei 5.5.5.5 next-hop-self exit
router ospf 100 net 4.4.4.4 0.0.0.0 area 0 net 45.1.1.0 0.0.0.255 area 0 |
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R5: router bgp 1 no au no sy bgp router-id 5.5.5.5 nei 35.1.1.3 remote-as 23 nei 4.4.4.4 remote-as 1 nei 4.4.4.4 update-source lo 0 nei 4.4.4.4 next-hop-self exit
router ospf 100 net 5.5.5.5 0.0.0.0 area 0 net 45.1.1.0 0.0.0.255 are 0 |
step 7.查看结果。
R4#sh ip bgp
BGP table version is 11, local router ID is 4.4.4.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 1.1.1.1/32 34.1.1.3 0 23 23 i
* i 5.5.5.5 0 100 0 23 23 i
*> 4.4.4.4/32 0.0.0.0 0 32768 i
*> 12.1.1.0/24 34.1.1.3 0 23 ?
* i 5.5.5.5 0 100 0 23 ?
r> 34.1.1.0/24 34.1.1.3 0 0 23 ?
r i 5.5.5.5 0 100 0 23 ?
*> 35.1.1.0/24 34.1.1.3 0 0 23 ?
* i 5.5.5.5 0 100 0 23 ?
step 8.配置soo
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R2: R2(config)#route-map sss permit 10 R2(config-route-map)#set extcommunity soo 65001:1 R2(config-route-map)#exit R2(config)# R2(config)#router bgp 23 R2(config-router)#address-family ipv4 vrf AAA R2(config-router-af)#neighbor 12.1.1.1 route-map sss in |
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R3: R3(config-route-map)#route-map sss permit 10 R3(config-route-map)#set extcommunity soo 65001:1 R3(config-route-map)#exit R3(config)#router bgp 23 R3(config-router-af)#neighbor 35.1.1.5 route-map sss in R3(config-router-af)#nei 34.1.1.4 route-map sss in |
