CSM - multiple probes behaviour

Unanswered Question
Sep 8th, 2009
User Badges:

On a CSM, if there is more than one probe configured on a serverfarm, lets say 3 probes, ping, http and port 4400, if one of these probes fails then is the real server marked as failed, or do all 3 probes have to fail before the server is marked as failed, or is the specific service on the real server marked as down ?

Thanks in advance.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Muhammad Anser Khan Tue, 09/08/2009 - 01:05
User Badges:

Dear Peter,

If you associate a probe of a particular type (http, icmp, etc)with a server farm containing real servers that are not running the corresponding service, the real servers send error messages when they receive a probe of that type. This action causes the CSM to place the real server in a failed state and disable the real server from the server farm.

If any of the probe failed, It will fail the real server.



Gilles Dufour Tue, 09/08/2009 - 02:04
User Badges:
  • Cisco Employee,

when you configure multiple probes for the same serverfarm, all of them

have to be succeful in order to maintain the servers in OPERATIONAL

state: a failure of just one of the probes would put the server in




This Discussion