From: Guyler, Rik (rguyler@shp-dayton.org)
Date: Fri Apr 13 2007 - 08:47:11 ART
Thanks for the reply. My final config was pretty close but the nortel
phones will mark the packets with DSCP 6 when 802.1q is turned off (which it
is in mine as well) so I just changed my auto qos to trust dscp instead of
cos.
Rik
-----Original Message-----
From: Salau,Olayemi [mailto:Olayemi.Salau@southampton.gov.uk]
Sent: Friday, April 13, 2007 4:50 AM
To: rguyler@shp-dayton.org; Cisco certification
Subject: RE: Nortel and Cisco VOIP
Hello Rik,
I also had some problems with Ericson IP Phones integrating into the cisco
switch infrastructures.
But at the end of the day, this is what I resolved: Most of the 3rd Party IP
Phones don't have an "Intelligent Switch" in built capable of marking and
extending cos. It looks like they either have a hub or a normal switch
within the phones that gives the capability of connecting your PC into
IPPhone and then using a single link into your switch.
This was my fix: I configured auto-qos on the switch and then marked all the
traffic from the phones with our choice of cos values. You can do this with
the mls qos cos 5 and mls qos cos override commands.
!
interface FastEthernet1/0/4
description **** Voice Port
switchport access vlan 63
switchport mode access
no logging event link-status
speed 100
duplex full
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0
mls qos cos 5
mls qos cos override
no snmp trap link-status
auto qos voip trust
cdp enable
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree bpduguard enable
!
Many Thanks
This archive was generated by hypermail 2.1.4 : Tue May 01 2007 - 08:28:35 ART