All OSPF neighbors suddenly down

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

All OSPF neighbors suddenly down

L1 Bithead

Hello all,

 

Customer has a problem were their PaloAlto suddenly declares all neighbors adjacencies down, after that the PaloAlto will do a grateful restart and the OSPF neighbors will change to init, and then go full again, this OSPF flapping lasts 15 seconds or so so there is nearly no service impact at all, but customer would like to understand why is this happening and how to avoid it.

 

I think the problem is related to the PaloAlto because the OSPF adjacency is lost at the exact same time for all neighbors, even though half of the neighbors are in separate interfaces and separate virtual routers, with different OSPF configuration. 

 

The problem has happened 3 times on the last month but the system logs only show declaring the neighbor down and the grateful restart afterwards. Is there any way to troubleshoot the issue after it happened? The routerd.log are no longer showings logs for that day...

 

The FW is a PA-5050, with version 8.1.21

 

Thank you in advance,

Jose



Please note you are posting a public message where community members and experts can provide assistance. Sharing private information such as serial numbers or company information is not recommended.
0 REPLIES 0
  • 1370 Views
  • 0 replies
  • 0 Likes
Like what you see?

Show your appreciation!

Click Like if a post is helpful to you or if you just want to show your support.

Click Accept as Solution to acknowledge that the answer to your question has been provided.

The button appears next to the replies on topics you’ve started. The member who gave the solution and all future visitors to this topic will appreciate it!

These simple actions take just seconds of your time, but go a long way in showing appreciation for community members and the LIVEcommunity as a whole!

The LIVEcommunity thanks you for your participation!