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connections failure on sh serverfarm

fd_case17
Level 1
Level 1

Hi,

i have got some connexions failures on some realservers:

with sh serverfarm detail,

is it possible to know the reasons ?

syn timeout, RST ?

did i have to make a capture on the ace to  check this ?

Many thanx

1 Reply 1

asharmav
Level 1
Level 1

Hi

normally only RST from the rserver or no response to SYN from the rserver are counted as failure.

However,  we had issues with this as identified in  CSCtd22008 "ACE- Client RST  in End-to-End SSL generates Rserver conn-failures."

An old one is CSCsh14278 "sh serverfarm failure conn incremented for successful connection".

So, if you want to be sure, the only option is to capture a sniffer trace.

If you have a probe attached to a rserver then you can get the details why the probe failed using the show probe detail.

For more troubleshooting please refer to

http://docwiki.cisco.com/wiki/Cisco_Application_Control_Engine_%28ACE%29_Troubleshooting_Guide_--_Troubleshooting_ACE_Health_Monitoring

Regards

Abijith

Review Cisco Networking for a $25 gift card