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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Ed<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I did not really take time to investigate
this in more detail. I have a new implementation coming up and as one do – I am
trying to improve the way we deploy things, fix previous mistakes etc so hopefully
will have a bit of time in staging to look at what potentially is a good way of
doing it. Will let you know. Waiting for the kit to come in – probably start
early December.<o:p></o:p></span></font></p>
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10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='text-autospace:none'><b><i><font size=2 color=black
face="Times New Roman"><span lang=EN-US style='font-size:11.0pt;color:black;
font-weight:bold;font-style:italic'>Erik Erasmus </span></font></i></b><font
color=navy><span lang=EN-US style='color:navy'><o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
Ed Leatherman [mailto:ealeatherman@gmail.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 10 November 2006 11:41 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Erik Erasmus (E)<br>
<b><span style='font-weight:bold'>Cc:</span></b> cisco-voip@puck.nether.net<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [cisco-voip] auto QoS
for Ip telephony solution</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Revisiting this thread
since it seemed most related to my question.<br>
<br>
As below, i've mainly been using "auto qos voip trust" on our
interfaces between cat 3750 switches. I've been going through the qos
documentation, particularly the SRND for enterprise qos - basically what it
seems to be is there are alot of differences between running "auto
qos" and the recommended configuration that they provide in the srnd. <br>
<br>
One particular thing that just jumped out at me today was, using auto qos voip
trust on an interface doesn't appear to enable the priority queue (according to
the "sh mls qos int queueing" command). If that's true i've got a ton
of switches out there that need their configs fixed.. All my traffic comes out
marked OK, and queueing and so forth are setup OK on our core routers but 90%
of our distribution and access layer switches are 3550 or 3750 models. <br>
<br>
So is auto-qos flat out not intended for anything but trusted endpoints such as
ccm servers? the further I dig into this the more it seems like this is the
case.<br>
<br>
<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><span class=gmailquote><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>On 9/18/06, <b><span style='font-weight:bold'>Erik
Erasmus (E)</span></b> <<a href="mailto:ErasmuE4@telkom.co.za">ErasmuE4@telkom.co.za</a>>
wrote:</span></font></span><o:p></o:p></p>
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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Thanks Ed</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I think it sound like good advice - I was basically planning
to try it like you say.</span></font><o:p></o:p></p>
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<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>If one does not have extensive resources it is a lot easier
and possibly good enough in most cases to use <span class=st><span name=st
id=st>auto</span></span> <span class=st><span name=st id=st>QoS</span></span>.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>thanks for your advice - will let the group know if during
my implementation I see something interseting.</span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Ed
Leatherman [mailto:<a href="mailto:ealeatherman@gmail.com" target="_blank">ealeatherman@gmail.com</a>]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Mon 2006-09-18 16:29<br>
<span class=q><b><span style='font-weight:bold'>To:</span></b> Erik Erasmus (E)</span><br>
<span class=q><b><span style='font-weight:bold'>Cc:</span></b> <a
href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a></span><br>
<span class=q><b><span style='font-weight:bold'>Subject:</span></b> Re:
[cisco-voip] <span name=st id=st></span><span class=st>auto </span><span name=st
id=st>QoS</span></span><span class=q> for Ip telephony solution</span></span></font><o:p></o:p></p>
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<div><span id="q_10dc1cf2f956aa14_3">
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hi Erik,<br>
<br>
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. <br>
<br>
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. <br>
<br>
Ed<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><span class=gmailquote><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>On 9/18/06, <b><span style='font-weight:bold'>Erik
Erasmus (E)</span></b> <<a href="mailto:ErasmuE4@telkom.co.za"
target="_blank">ErasmuE4@telkom.co.za</a>> wrote:</span></font></span> <o:p></o:p></p>
<div>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p><font size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>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. </span></font><o:p></o:p></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<ol start=1 type=1>
<li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
mso-list:l0 level1 lfo1'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>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. </span></font><o:p></o:p></li>
<li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;
mso-list:l0 level1 lfo1'><font size=2 face=Arial><span style='font-size:
10.0pt;font-family:Arial'>Also what is recommended on switch ports
connecting to the Cisco Call Manager at HQ. Is it auto QoS VoIP trust ???</span></font>
<o:p></o:p></li>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Ed Leatherman<br>
Senior Voice Engineer<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">West Virginia</st1:PlaceName> <st1:PlaceType
w:st="on">University</st1:PlaceType></st1:place><br>
Telecommunications and Network Operations <o:p></o:p></span></font></p>
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