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RoutingLoop_179's avatar
RoutingLoop_179
Icon for Cirrus rankCirrus
Nov 01, 2013

LTM VE performance while loadbalancing DNS (DNS profile) and Max connections

Hi I'll be raising a case via my SE as well but wanted to post on here in case others had some ideas. Probably going to be a bit of a long post - sorry.   We experienced a major service outage yes...
application delivery
cloud
deployment
design
performance
TMSH
vmware
What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Nov 04, 2013

Thanks for posting; this is very useful information and the root cause will be even more so.

 

Just so it's clear, what is CPS please? I assume you had a full license? What does the license screen show? How did RAM usage look? Any rate classes etc. configured?

 

Perhaps use the 'tmsh show ltm profile dns' command to understand the DNS rate limits of your implementation/license?

 

Interesting it's v11.4; I'm aware that v11.3 on contain some significant performance improvements over prior versions.