RE: Voice vlan setting

From: Nii orfson (norfson@hotmail.com)
Date: Wed Jun 16 2004 - 21:40:31 GMT-3


I would still recommend using setting a voice vlan to separate the voice
from the data traffic. If you are not using a cisco phone, trunking
between the switch and the phone might be useless. If trunking is not
enabled on the ingress port, then the switch will not recieve QoS setting
from the phone. However, a PC attached to the phone might try set traffic
with a higher priority, so use the switchport priority extend cos to
prevent this. Set the voice media traffic on the ingress port to cos 5 or
dscp 46, set the voice signalling to cos 3, and set data to cos 0.

>From: Tom Young <gitsyoung@yahoo.co.jp> >Reply-To: Tom Young
<gitsyoung@yahoo.co.jp> >To: Richard Dumoulin <richard.dumoulin@vanco.es>
>CC: ccielab@groupstudy.com >Subject: RE: Voice vlan setting >Date: Thu,
17 Jun 2004 09:16:49 +0900 (JST) > >Richard > If my IP phone is not
the cisco ip phone. And only >voice communication be used . How about
that two commands? > >And the cdp will not work correctly, does some
affect will >happened ? > >Thanks alot > >--- Richard Dumoulin
<richard.dumoulin@vanco.es> )gL >bZ[WF > > Do you want the pc
attached to the phone to be > > trsuted by the phone ? If yes > > then
you need "switchport priority extend trust". > > Then the switch will
trust > > both the voice and the pc thx to "mls qos trust > > cos". > >
If not then just "mls qos trust cos" as the phone > > will override pc
traffic > > to COS 0, > > > > --Richard > > > > -----Original
Message----- > > From: Tom Young [mailto:gitsyoung@yahoo.co.jp] > > Sent:
miircoles, 16 de junio de 2004 17:08 > > To: ccielab@groupstudy.com > >
Subject: Voice vlan setting > > > > > > Hi, group > > > > Look the two
commands below for setting voice vlan. > > If I > > want to trust a VoIP
telephone setting, should I > > need set > > the two command on the voice
vlan interface ? > > > > switchport priority extend trust > > mls qos
trust cos > > > > Thanks alot > > > > > > > >



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