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Como criar um failover na topologia

LincolnR
Level 1
Level 1

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
Level 1
Level 1

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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