Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
Search instead for
Did you mean:
BGP neighbor adjacency goes down when an ACL is applied
The most common reason for this problem is that the ports used by Border Gateway Protocol (BGP) are not permitted through the Access Control List (ACL). BGP uses unicast Transmission Control Protocol (TCP) packets on port 179 to communicate with its peers.
Permit TCP port 179 through the ACL.
Whenever you are applying an in-bound ACL on an interface, ensure that routing updates are not filtered out.