Re: mls qos trust device cisco-phone vs mls qos trust cos

From: Chris Lewis (chrlewiscsco@yahoo.com)
Date: Tue Oct 18 2005 - 10:13:51 GMT-3

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If you configure mls qos trust cos the port trusts the cos value of all incoming frames. If you then also configure mls qos trust device cisco-phone, the port will only trust cos values if it becomes aware of a cisco phone attahed via cdp messages.
 
Chris

Cisco Nuts <cisconuts@hotmail.com> wrote:
Hello:

If a Cisco IP Phone is connected to a switchport and a voice vlan has been
configured, when would one use the trust device cisco-phone vs trust cos?

Can someone provide a clear explanation as when to use one over the other?

Thanks!!!!!!!!!!!!!

• Next message: The Great Ryan: "Re: ipv6 support!"
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• Maybe in reply to: Cisco Nuts: "mls qos trust device cisco-phone vs mls qos trust cos"
• Next in thread: Thomwin Chen: "Re: mls qos trust device cisco-phone vs mls qos trust cos"
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