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CSM Policy Stats

Hi all,

Im running a CSM on 4.1(2).

In the "show mod csm x stats" command output there is an entry for L4/L7 rejected connections which is subdivided into "No Policy" and "No policy match" amongst others.

Could someone suggest the difference between the two sub categories please.

I have an issue with a service intermittently failing where part of a web page is displayed but another pane gets a "page cannot be displayed" error. On sniffing traffic I see that the CSM is sending RST to the client.

I saw this error previously for a different problem when the parse-length limits were reached. Increasing the limits solved the problem.

This time I'm getting "No match policy" errors which increment everytime I replicate the problem. There is a L7 policy assigned to the vserver and the traffic requests do not contravene the policy in any way (policy enforces a http header insert only).

persistent rebalancing is enabled to force L7 policy for every request which is a requirement.

Thought comments welcomed.

Regards,

Barry

  • Application Networking
1 REPLY
Cisco Employee

Re: CSM Policy Stats

The "No policy" is incremented when a flow matches a vserver configured with no default serverfarm;

but the CSM LB code could not find a policy that matched this request.

The "no policy match" is in the L7 case where none of the policies configured for a vserver matched the request and

there is no default policy/serverfarm, the request will be dropped.

So same but for L7.

Gilles.

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