Swichport qos config for cisco voice gateways and call managers servers

Unanswered Question
Mar 22nd, 2010

I have enabled auto qos for the switchports (cat 3750) connecting to the user's cisco ip phones.. However, I am not sure if the switchports where any of the other devices need to have qos enabled - i.e. cisco routers (voice gateways), call manager servers, etc. I think it would make sense that switchports where voice gateways are connected would need to have qos enabled. But I can be wrong. Can anyone assist? Thanks.

Marramix

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Aaron Harrison Mon, 03/22/2010 - 09:54

Hi

You would want to configure the port as a trusted port.

So for autoqos:

Auto qos voip trust

In addition, if the port is an access (i.e. non-trunk port) you must configure the port to trust DSCP as there will be no CoS markings.

So:

Auto qos voip trust

Mls qos trust dscp

Regards

Aaron

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