[cisco-voip] auto QoS for Ip telephony solution

[Erik Erasmus (E)]

Thanks Ed

I think it sound like good advice - I was basically planning to try it
like you say.
If one does not have extensive resources it is a lot easier and
possibly good enough in most cases to use auto QoS.

thanks for your advice - will let the group know if during my
implementation I see something interseting.

________________________________

From: Ed Leatherman [mailto:ealeatherman at gmail.com]
Sent: Mon 2006-09-18 16:29
To: Erik Erasmus (E)
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] auto QoS for Ip telephony solution


Hi Erik,

I'm no qos expert by any stretch, this is just what we do and it seems
to work out for us.. traffic markings come out end-to-end how we want
them to at least. If someone else sees something wrong with it i'd
love to hear it.

I've been using "auto qos voip trust" on both those instances, i've
been adding to that "mls qos trust dscp" to the callmanager ports and
layer 3 links, because the auto trust statement seems to put mls qos
trust cos instead. To my understanding the callmanager servers mark
their traffic with the dscp bits.

Ed


On 9/18/06, Erik Erasmus (E) <ErasmuE4 at telkom.co.za> wrote:


	Currently at branches we use auto-QoS VoIP cisco-phone on all
the 3560 series switchports connection to cisco phones and the same at
HQ on the 4500 series switches.

	

	1.	I want to know what is recommended for the trunk
interface on the switch between the branch gateway and the lan switch
on the 802.1Q trunk and also on the router main / subinterfaces.
	2.	Also what is recommended on switch ports connecting to
the Cisco Call Manager at HQ. Is it auto QoS VoIP trust ???

	




--
Ed Leatherman
Senior Voice Engineer
West Virginia University
Telecommunications and Network Operations


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