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Como criar um failover na topologia

LincolnR
Beginner
Beginner

Bom dia.

Estou precisando de uma ajuda. 

Tenho uma topologia que pretendo criar failover do R1 ate R4. Quando pingo do R1#ping 4.4.4.4 so loo0 o pacote sai pelo R3. Preciso que os pacotes de R1 saiam pelo R2 caso R3 falhe. Configurei maximum paths no R1 mas não resolveu.

R1(config)#router bgp 500
R1(config-router)#maximum-paths 2 

**************************

R1

router ospf 1
!
router bgp 500
bgp log-neighbor-changes
network 1.1.1.1 mask 255.255.255.255
neighbor 192.168.12.2 remote-as 500
neighbor 192.168.13.3 remote-as 500

*************************************

R2

router ospf 1
!
router bgp 500
bgp router-id 22.2.2.2
bgp log-neighbor-changes
network 2.2.2.2 mask 255.255.255.255
neighbor 192.168.12.1 remote-as 500
neighbor 192.168.12.1 next-hop-self
neighbor 192.168.23.3 remote-as 500
neighbor 192.168.23.3 next-hop-self
neighbor 200.1.27.7 remote-as 65000
neighbor 200.1.27.7 allowas-in

*******************************

R3

router ospf 1
!
router bgp 500
bgp log-neighbor-changes
network 3.3.3.3 mask 255.255.255.255
neighbor 192.168.13.1 remote-as 500
neighbor 192.168.13.1 next-hop-self
neighbor 192.168.23.2 remote-as 500
neighbor 192.168.23.2 next-hop-self
neighbor 200.1.38.8 remote-as 65000
neighbor 200.1.38.8 allowas-in
!

********************************************

R8

vrf definition BLUE
rd 1:1
!
address-family ipv4
route-target export 500:500
route-target import 500:500
exit-address-family

!

router ospf 1
mpls ldp autoconfig
router-id 8.8.8.8
!
router bgp 65000
bgp log-neighbor-changes
no bgp default ipv4-unicast
neighbor 9.9.9.9 remote-as 65000
neighbor 9.9.9.9 update-source Loopback0
neighbor 10.10.10.10 remote-as 65000
neighbor 10.10.10.10 update-source Loopback0
!
address-family ipv4
exit-address-family
!
address-family vpnv4
neighbor 9.9.9.9 activate
neighbor 9.9.9.9 send-community extended
neighbor 10.10.10.10 activate
neighbor 10.10.10.10 send-community extended
exit-address-family
!
address-family ipv4 vrf BLUE
neighbor 200.1.38.3 remote-as 500
neighbor 200.1.38.3 activate
exit-address-family

*************************************

R7

vrf definition BLUE
rd 1:1
!
address-family ipv4
route-target export 500:500
route-target import 500:500
exit-address-family

!

router ospf 1
mpls ldp autoconfig
router-id 7.7.7.7
!
router bgp 65000
bgp log-neighbor-changes
no bgp default ipv4-unicast
neighbor 9.9.9.9 remote-as 65000
neighbor 9.9.9.9 update-source Loopback0
neighbor 10.10.10.10 remote-as 65000
neighbor 10.10.10.10 update-source Loopback0
!
address-family ipv4
exit-address-family
!
address-family vpnv4
neighbor 9.9.9.9 activate
neighbor 9.9.9.9 send-community extended
neighbor 10.10.10.10 activate
neighbor 10.10.10.10 send-community extended
exit-address-family
!
address-family ipv4 vrf BLUE
neighbor 200.1.27.2 remote-as 500
neighbor 200.1.27.2 activate
exit-address-family

2 RESPOSTAS 2

LincolnR
Beginner
Beginner

hello Guys.

I asked for help here. Because I used the "maximum-paths ibgp 2" configuration and the package did not arrive at R4. So I removed the configuration and asked for help here. I reconfigured R1 with "maximum-paths ibgp 2"
and it worked. There is no explanation. Maybe it's a bug in GNS3.

 

 

Thanks very much.

Cisco Moderador
Community Manager
Community Manager

Obrigado por dividir sua dúvida com a gente, @LincolnR ! Assim formamos uma comunidade muito mais robusta! 

 

Equipe Comunidade Cisco

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