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Traffic between the servers should be prioritized. It's all or nothing.
If cannot meet the requirement do not cluster over wan.<br>
<br>
ICCS stricly speaking are only a few ports but we know from experience
that delays on other ports cause unexpected behavior. This appears
innocent enough on initial inspection but I promise there are very
dangerous pitfalls down this road.<br>
<br>
Regards,<br>
Wes<br>
<br>
On Wednesday, August 12, 2009 1:54:34 PM , Go0se <a class="moz-txt-link-rfc2396E" href="mailto:me@go0se.com"><me@go0se.com></a>
wrote:<br>
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<p class="MsoNormal">We have a scenario with Callmanager 4.2 – PUB
&
SUB separated by MPLS – plenty of bandwidth but QoS/CoS is our issue. I
have a copy of the “Cisco Unified Callmanager 4.2 TCP and UDP Port
Usage”
guide, but unfortunately due to considerations outside of our control
we cannot
prioritize by IP nor can we prioritize all of the CM to CM ports listed
in the
above guide. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In the following SRND: <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a moz-do-not-send="true"
href="http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/4x/42models.html#wp1045871">http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/4x/42models.html#wp1045871</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">under the “WAN Considerations” section (that I
linked to in the above link) it discusses ICCS (Intra-Cluster
Communication
Signaling) between servers. It links to a subsection of “Intra-Cluster
Communications” that vaguely lists what communications are involved in
ICCS but doesn’t discuss actual ports.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">So basically my issue is this: I’m looking for
is a “meat
and potatoes” list of the absolute necessary ports to prioritize that
must
meet the 20 ms delay (40 ms RTT) between intra-cluster callmanager
boxes to
keep them happy.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As always, if anyone can offer
guidance/assistance, it would
be greatly appreciated. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Go0se<o:p></o:p></p>
<p class="MsoNormal"><a moz-do-not-send="true"
href="http://atc.go0se.com">http://atc.go0se.com</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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