[cisco-voip] Default Qos behaviour

Ryan Ratliff rratliff at cisco.com
Thu Sep 28 11:53:34 EDT 2006


Depends on the switch hardware and whether qos is enabled or not  
globally on the switch.

The QOS SRND talks about this for the 6500 and 3550 switches (perhaps  
others too).

-Ryan

On Sep 28, 2006, at 10:22 AM, Aman Chugh wrote:

All,

I would like to understand the default behaviour for QOS marking set  
by an Ip phone for voice packets,In my scenario if dont have any qos  
settings configured on the switch ,will the switch disregard/remove  
the marking set by a cisco ipphone before passing them on next hop  
device,I ask this because as I have configured CBWFQ with LLQ on my  
router but dont have any qos settings on my switch where my phone  
connects ,I have not checked this out with a sniffer just wanted to  
know if any one in the group knows about the same.

Thanks for the help

Aman
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