<br><font size=2 face="sans-serif">Ahh good catch. I'm seeing different
results between sniffer products. An older version of Ethereal is
showing me the DiffServ field and the bits are correct and in both directions.
I'm guessing that my distributed sniffer either needs an option enabled
or a module paid for. </font>
<br>
<br><font size=2 face="sans-serif">I have one more question so that I better
understand.</font>
<br>
<br><font size=2 face="sans-serif"><auto qos voip trust> adds <mls
qos trust cos> to the interface. Should I change this to <mls
qos trust dscp> on all Call Manager interfaces, router interfaces and
trunks? </font>
<br><font size=2 face="sans-serif">Would I ever configure dscp on a cisco
or avaya ip phone interface? </font>
<br><font size=2 face="sans-serif"> </font>
<br><font size=2 face="sans-serif">Thanks for the help. I've been
sniffing this almost all afternoon.</font>
<br><font size=2 face="sans-serif"><br>
Steve Siltman<br>
Assurant Corporate Technology<br>
Work: 651-361-4752<br>
Cell: 651-336-5563<br>
steve.siltman@assurant.com</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>"Linsemier, Matthew"
<MLinsemier@apcapital.com></b> </font>
<p><font size=1 face="sans-serif">12/10/2007 01:55 PM</font>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif"><steve.siltman@assurant.com>,
<cisco-voip@puck.nether.net></font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">RE: [cisco-voip] CallManager LAN QOS
Question</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br><font size=2 color=#1f497d face="sans-serif">Are you just sniffing
COS? Are the DSCP values correct that CallManager is sending out?
RTP should be marked as DSCP EF and all SCCP,H.323, and SIP should
be marked as DSCP C3. What are your DSCP -> COS mappings on your
switch?</font>
<br><font size=2 color=#1f497d face="sans-serif"> </font>
<br><font size=2 face="Tahoma"><b>From:</b> cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] <b>On Behalf Of </b>steve.siltman@assurant.com<b><br>
Sent:</b> Monday, December 10, 2007 2:20 PM<b><br>
To:</b> cisco-voip@puck.nether.net<b><br>
Subject:</b> [cisco-voip] CallManager LAN QOS Question</font>
<br><font size=3 face="Times New Roman"> </font>
<br><font size=2 face="Arial"><br>
Hi All.</font><font size=3 face="Times New Roman"> <br>
</font><font size=2 face="Arial"><br>
I implemented QOS on the LAN this weekend in our shop. I configured
6 closets running a slew of 3750's and four 6500 CAT switches (with a few
6x48 blades). I have one issue so far. I'm sniffing one of
the Call Manager interfaces on the switch and all packets coming into the
CallManager seem to have the correct COS assigned. All of the packets
sourced by CallManager are COS = 0. This makes it look like CallManager
is changing these packets to 0. Did I miss something on CallManager
that I need to enable? The clusterwide parameters (System - QOS)
under Service Parameters is set to Normal Priority, EF, AF41 and CS3.
</font><font size=3 face="Times New Roman"> <br>
</font><font size=2 face="Arial"><br>
Running CallManager 4.1.3sr5d</font><font size=3 face="Times New Roman">
<br>
</font><font size=2 face="Arial"><br>
Thanks,</font><font size=3 face="Times New Roman"> </font><font size=2 face="Arial"><br>
<br>
Steve Siltman<br>
Assurant Corporate Technology<br>
Work: 651-361-4752<br>
Cell: 651-336-5563<br>
steve.siltman@assurant.com</font><font size=3 face="Times New Roman"> </font>
<p>
<p>
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