<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
If you are getting CallsRejectedDueToICTThrottling it's because CM
detected > 43cps in a recent sample. You definitely have a call
routing loop.<br>
<br>
If you are on CM4.x the information below used in your CDR database
will help to track down the problem:<br>
**************************************************************************************<br>
2 step:<br>
<br>
1. identify datetimeorigination and nodeid of loop<br>
select top 100 count(*) as cps, orignodeid, datetimeorigination,
DATEADD(ss, datetimeorigination, 'Dec 31, 1969 19:00:00') AS dts_EST<br>
from calldetailrecord<br>
where datetimeorigination>1173272400<br>
group by orignodeid, datetimeorigination<br>
order by cps desc<br>
<br>
2. identify the numbers and devices involved in calls during that time<br>
select
origdevicename,destdevicename,callingpartynumber,finalcalledpartynumber<br>
from calldetailrecord<br>
where <br>
datetimeorigination='<datetimeorigination_from_above>'<br>
and orignodeid = <nodeid_from_above><br>
<br>
**************************************************************************************<br>
<br>
On Thursday, March 05, 2009 10:01:59 AM, Dave Wolgast
<a class="moz-txt-link-rfc2396E" href="mailto:dwolgas1@rochester.rr.com"><dwolgas1@rochester.rr.com></a> wrote:<br>
<blockquote
cite="mid:e4491a9c0903050701m5a5c3193nc1f66cdfc333b41c@mail.gmail.com"
type="cite">
<div class="gmail_quote">On Wed, Mar 4, 2009 at 10:54 PM, Wes Sisk <span
dir="ltr"><<a moz-do-not-send="true" href="mailto:wsisk@cisco.com">wsisk@cisco.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div bgcolor="#ffffff" text="#000000">ICT capacity should be
unlimited with a couple exceptions:<br>
1. call rate - CM can only accept ~4call per second for h.323<br>
2. locations bandwidth configuration - allows you to limit total calls
if you desire<br>
<br>
after that you can route essentially unlimited calls over ICT until you
literally crush CM. If you're getting route list exhausted in means CM
is trying to hunt through the routelist. Usually this only happens if
h225 setup fails for ICT. detailed SDL traces and careful eye will
spot the reason. Otherwise a packet capture looking at traffic on
TCP:1720 will provide pretty directly clues.<br>
<br>
every call establishes a new TCP session to the remote cluster on
tcp:1720.<br>
<br>
</div>
</blockquote>
</div>
Thanks Wes,<br>
<br>
What I fear is that I have a routing loop at work that spikes things
periodically. Every once in awhile, I get a <30 sec spike on the
counter CallsRejectedDueToICTThrottling, and the Route List Failed
seems to correlate. I am pretty sure I don't ever maintain >4
cps...maybe in a burst every once in awhile.<br>
<br clear="all">
<br>
-- <br>
Dave Wolgast<br>
Livonia, NY<br>
</blockquote>
<br>
</body>
</html>