Wired Intelligent Edge (Campus Switching and Routing)

How To Turn On BGP Neighbor Adjacency Changes On Aruba Switches

MVP Expert
MVP Expert

How to have Aruba HPE switches to log BGP neighbor adjacency changes


Aruba switches by default would not log BGP neighbor adjacency changes , either neighbor going UP or neighbor going DOWN.

This can be verified by the following command:

  Aruba-Stack-3810M #show ip bgp general

  Log Neighbor Changes  : No

  *some output omitted.


So if an Aruba HPE switch loses BGP neighbor adjacency with any neighbor switch, the "show log -r" command woll not reveal this event.

This behavior can be altered so the switch can log BGP neighbor state changes.



To turn on logging for BGP adjacency changes , go to bgp context and run the following command

Aruba-Stack-3810M (config)#router bgp <as.no>

Aruba-Stack-3810M(bgp)# bgp log-neighbor-changes



To verify run the following command: 

Aruba-Stack-3810M #show ip bgp general

Log Neighbor Changes  : Yes

*some output omitted.


If we tear down a Router BGP adjacency, the logs now show this information:

show log Aruba-Stack-3810M #show log  -r

W 07/02/19 09:42:15 03073 bgp: Peer down

*some output omitted.

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Last update:
‎08-23-2019 02:45 PM
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