AVR and identifying packet drops

All,

 

We use our LTM's (BIG-IP 11.3.0 Build 3144.0 Hotfix HF8) as default routers for our networked segments. We are seeing alot of drops, lost segments and retransmissions on two specific interfaces while our backup teams are running backups. Ideally backups should not run on through production IP ranges and on a different network segment, but this is the design issue that we have to address now.

 

The ip addresses of the backup servers are not defined as nodes in the LTM's at all. Thoughts on any way to best identify and troubleshoot this?

 

We have heard from F5 that we may have to turn AVR on to best identify this, but I'm concerned that since the IP addresses in question are not configured as either a node, member server or identified in anyway on the LTM's, that our ability to gain any insight with AVR would be limited.

 

Thoughts and suggestions please :)