From: Vincent Mashburn (vmashburn@fedex.com)
Date: Tue Dec 13 2005 - 11:01:35 GMT-3
Depending on what switching platform you are using (2950 and later), you
could use MQC on the switch and match the voice traffic with a
class-map. Then you could change the ToS/CoS Values with a policy-map.
However, I am not sure that you should do this for Voice since it needs
to be transmitted faster than any other traffic.
Vince Mashburn
Engineer
901-263-5072
CCIE (R&S Written), CCNP, CCDA, Network +
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Cham
Sent: Tuesday, December 13, 2005 7:20 AM
To: Cisco certification
Subject: RE: Voice VLANs
Hi all,
When dealing with Voice VLANs, I see that you can override the
incoming CoS value or trust it, as by default the IP phone will remark
all tagged/untagged traffic to a CoS of 0.
If I have got this right the "switchport priority extended
trust/cos" command, only affects the access VLAN. Is there a way to
override the Voice VLAN CoS on the switch?? Or is this something you
would just set-up on the phone??
Thanks
Cham
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