From: Vince Mashburn (cciegroupstudy@gmail.com)
Date: Thu Apr 12 2007 - 11:19:47 ART
The way I have done it in the past is to do dot1q trunking to the phone and
let the data vlan be the native vlan. For address assignments, I used DHCP
classes with the Nortel vendor option to identify the phones. Everything
else (data) goes into the "default class" and is assigned an address from
there. As far as the qos goes, i think it marks CoS 5, but I cant remember
for sure. Just use Etherreal to find out. Hope this helps.
On 4/12/07, rguyler@shp-dayton.org <rguyler@shp-dayton.org> wrote:
>
> Anybody using Nortel IP telephony on Cisco switches? I've done several
> all-Cisco IPT installs but never using Nortel and unfortunately I can't find
> any docs on best practices for this hybrid setup, specifically the QOS
> differences.
>
> According to CCO, "auto qos" is said to only work with Cisco phones but if
> the phones mark the packets the same way then I don't see why it would
> matter since the packets should be classified the same way by the switch and
> the switch queues used in the same manner.
>
> The only difference I can find is that I should use the more generic "auto
> qos voip trust" option rather then specifying the "cisco-phone"
> option. Will this trust both 802.1p and DSCP values assigned by the
> phones? Or is it a one or the other situation?
>
> If anybody has any thoughts or comments on this I would greatly appreciate
> it. Of course, I've been given almost no time before go-live to lab this up
> so I'm grasping for straws. ;-)
>
> Thanks!
>
> Rik
>
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