qos trust cos or qos trust dscp?

Unanswered Question

My core switches are a pair Cisco catalyst 4006s with a sup 4 module. The questions are:

1. Should I use qos trust cos or qos trust dscp when setting up qos on a per port basis?

2. Which is preferred?

3. I have a cos to dscp mapping so does it really matter?


Any help is greatly appreciated. I just want to make sure that I'm honoring all tags.


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furionsky333 Thu, 10/10/2013 - 01:35

why ? I can't input command "mls qos trust dscp", instead of only input "qos trust dscp".

what difference between this two command?

thanks a lot

islam.kamal Thu, 10/10/2013 - 10:06

Hi


They are the same commands , the only difeerence the IOS supported commands. You will find also to trust cos instead of  mls qos trus cos . You also have to use auto qos default instead of auto qos voip trust.


Thank you

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