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BGP Route advertise

Sureshbabu
Level 1
Level 1

HI,

I have started to learn  BGP. While failover scenario not working.

Working scenario 

When trying to ping PC-1 to PC-2 its reachable.

Sureshbabu_1-1717404666774.png

 

 

Non- Working scenario 

when i shutdown the interface R3 to R1. Not reachable PC-1 to PC-2.

 

Sureshbabu_2-1717404746144.png

--------------------------------xxx------------------------

Below ae my topology and configuration. All 4 router running BGP.

 

Sureshbabu_0-1717403865712.png

R1

router bgp 1
no synchronization
bgp router-id 1.1.1.1
bgp log-neighbor-changes
network 172.19.12.0 mask 255.255.255.0
neighbor 10.10.10.2 remote-as 2
neighbor 10.10.10.10 remote-as 1
no auto-summary

LAN interface 

interface FastEthernet1/0
no switchport
ip address 172.19.12.1 255.255.255.0
standby 10 ip 172.19.12.3
standby 10 priority 110

R2

router bgp 1
no synchronization
bgp router-id 2.2.2.2
bgp log-neighbor-changes
network 172.19.12.0 mask 255.255.255.0
neighbor 10.10.10.6 remote-as 2
neighbor 10.10.10.9 remote-as 1
no auto-summary

LAN interface

interface FastEthernet1/0
no switchport
ip address 172.19.12.2 255.255.255.0
standby 10 ip 172.19.12.3

 

R3

router bgp 2
no synchronization
bgp router-id 3.3.3.3
bgp log-neighbor-changes
network 172.24.11.0 mask 255.255.255.0
neighbor 10.10.10.1 remote-as 1
neighbor 10.10.10.14 remote-as 2
no auto-summary

LAN interface 

interface FastEthernet1/0
no switchport
ip address 172.24.11.1 255.255.255.0
standby 10 ip 172.24.11.3
standby 10 priority 110

R4

router bgp 2
no synchronization
bgp router-id 4.4.4.4
bgp log-neighbor-changes
network 172.24.11.0 mask 255.255.255.0
neighbor 10.10.10.5 remote-as 1
neighbor 10.10.10.13 remote-as 2
no auto-summary

LAN interface 

interface FastEthernet1/0
no switchport
ip address 172.24.11.2 255.255.255.0
standby 10 ip 172.24.11.3

 

Kindly suggest 

 

1 Accepted Solution

Accepted Solutions

You config only need 

Next-hop-self between two ibgp router

That it 

MHM

View solution in original post

1 Reply 1

You config only need 

Next-hop-self between two ibgp router

That it 

MHM