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Cisco Bug: CSCuw50052 - HTTP/HTTPS Probes fail randomly on ACE

Last Modified

Feb 01, 2017

Products (1)

  • Cisco ACE 4700 Series Application Control Engine Appliances

Known Affected Releases

3.0(0)A5(3.2) 3.0(0)A5(3.3)

Description (partial)

On A5(3.2) and A5(3.3), HTTP and HTTPS probes fail randomly.
This issue is observed only when there are huge number of rservers listed under the serverfam, listening on various ports.
The failed probes give out "Health Probe Failed" logs intermittently with the reason "unrecognized or invalid response"
The show probe detail outputs display "last status code" as 200 and the "Last disconnect err" is left blank.

When downgraded to A5(3.1b), the probes stabilize.

++ACE versions beyond A5(3.1b)
++ Several rserver instances under the serverfarm
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