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ecsnnsls
Beginner

[DUAL STACK]BGP v4 Peering on Cisco ACI

Hi,

In our environment, we have an existing v6 BGP peer setup and operational. We wanted to enable v4 on the same L3OUT.

So I created a new Logical Interface Profile for v4 and configured BGP. The configurations were pushed without any faults.

The problem that I am facing is that I don't see any BGP peers under the "Configured Nodes" section and under the command "show bgp ipv4 unicast summary vrf <vrfname>"

On the remote end, the status of the ACI TOR peer is "CONNECT". One other observation is that under the command vsh show ip bgp neighbors vrf <vrfname>  I see the following output,

BGP prefix peer <v4peerIP>, remote AS <RASN>, ebgp link
Only passive connection setup allowed
Active peers 0 (0 closing), Maximum concurrent peers 0
Total peers accepted 0

 TLDR, BGP peer is not visible under "configured nodes" on a dual stack l3out and no peers are visible under the command show bgp ipv4 unicast summary vrf <vrfname>

1 REPLY 1
nileshgore25
Beginner

I think this is expected, when the peer is down.

In my case I was able to see the BGP neighbor via CLI in idle state for sometime immediately after I pushed the configuration. And the entries got cleared after few minutes.

the neighbor entry should show as soon as the session is established.

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