07-06-2018 10:37 PM - edited 03-05-2019 10:44 AM
Hi ALL,
Facing eBGP issue, Need your support to configure eBGP configuration using loopback.
Kindly refer attached document.
Thanks in advance.
07-07-2018 12:57 AM
Hello,
you need to configure all your neighbors on all routers with 'ebgp-multihop 2', such as on R2 below:
router bgp 200
no synchronization
bgp router-id 11.0.0.1
bgp log-neighbor-changes
network 1.1.1.0 mask 255.255.255.0
network 2.2.2.0 mask 255.255.255.0
network 11.0.0.1 mask 255.255.255.255
neighbor 10.0.0.1 remote-as 100
neighbor 10.0.0.1 update-source Loopback0
neighbor 10.0.0.1 ebgp-multihop 2
neighbor 10.0.0.1 next-hop-self
neighbor 12.0.0.1 remote-as 300
neighbor 12.0.0.1 update-source Loopback0
neighbor 12.0.0.1 ebgp-multihop 2
neighbor 12.0.0.1 next-hop-self
neighbor 13.0.0.1 remote-as 400
neighbor 13.0.0.1 update-source Loopback0
neighbor 13.0.0.1 ebgp-multihop 2
neighbor 13.0.0.1 next-hop-self
no auto-summary
07-09-2018 05:59 AM
Hi Georg,
Thanks for prompt support.eBGP neighbor ship is established but facing below error.Neighbor ship is getting flapped .
R1#
Mar 1 00:21:53.539: %BGP-5-ADJCHANGE: neighbor 11.0.0.1 Down BGP Notification sent
R1#
*Mar 1 00:21:53.539: %BGP-3-NOTIFICATION: sent to neighbor 11.0.0.1 4/0 (hold time expired) 0 bytes
Also refer attached wireshark file.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: