BGP stuck in ACTIVE state. The possible reasons are: TCP connection is initiated and it is in ACTIVE state i.e. LISTENING state.It is waiting for the TCP connection to complete. Peer address configured incorrectly on either router.

What does BGP state active mean?

What it means is that BGP is actively trying to set up a session with the neighbor. If the neighbor is also in state Active, the two will connect within seconds to about a minute. However, if the other side doesn't respond, the session can remain in Active for a long time.

Why is BGP not coming up?

BGP Interface Issues

When two EBGP routers that are directly connected do not form a working BGP neighbor adjacency there could be a number of things that are wrong: ... Layer 3 issue: wrong IP address on one of the routers. Access-list blocking TCP port 179 (BGP). Wrong IP address configured for BGP neighbor router.