CGNAT Statistics - Translations Failures

Hello Devs!

I have found some other info to this issue.

When I run 'show ltm lsn-pool <pool-name> failure-cause' I get kind of an explanation...

root@(bnudtccgn01)(cfg-sync In Sync)(Active)(/Common)(tmos)# show ltm lsn-pool pool_CGNAT_GPON-4711 failure-cause 
 
---------------------------------------------------------
Ltm::LSN Pool::Failures
---------------------------------------------------------
Pool                                         Cause  Count
pool_CGNAT_GPON-4711        LSN pick took too long    291
pool_CGNAT_GPON-4711     Total failure cause count    291

I read somewhere (and I just can't fin the article) that whenever a new client is accepted and BIG-IP tryes to find a new PBA block to it, it will randomly try x number of times. After that it will log an error and this counter will increase by one. In my environment, this counter matches the translation failures (on the original screenshot).

The only problem is that I don't see any error message logged on /var/log/ltm.

I'm still looking for an explanation.

Cheers, Rafael