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derek.winchester
Beginner

PRISpansInService in RTMT under Cisco MGCP Gateway

I was under the impression that this counter is for the avaible channels on a particular PRI or trunk group. Whenever I used this counter in the RTMT and set the threshold for -1 it fails to give me a alert. Maybe i do not know the basic definition of span and looking at this based on an old way of thinking but could someone tell me how this counter is supposed to work?

8 REPLIES 8
Rob Huffman
Hall of Fame Community Legend

Hi Derek,

With PRI's, the "Span" is the definition of the "whole" 23B + 1D channels. You would need

to look at using;

PRIChannelsActive

This counter represents the number of PRI voice channels that are currently active in a call in the gateway.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/7_1_2/rtmt/rtpmcm.html#wp1012748

Cheers!

Rob

"Always movin' ahead and never lookin' back" - Springsteen

Thanks Rob. I found other counters to actually give me what I need, but it bothers me that either I do not understand the definition of this counter or that it doesn't work at all.

So a Span being a whole 23B + 1D, when transitioning to TEI assigned, then it should send an alert. I assigned the threshold as under 1 for this particular PRI and then during a window, I shut the controller down. No alarm. I then brought the controller back up and then just shut the pri D channel. No alarm. So either this counter means something else or it doesn't work.

Any ideas?

Rob Huffman
Hall of Fame Community Legend

Hi Derek,

That is interesting.

Did you set up a custom alert? Are you monotoring the node that the gateway is actually registered to?

We use this one;

DatalinkInService

This counter represents the state of the Data Link (D-Channel) on the  corresponding digital access gateway. This value will be set to 1 (one)  if the Data Link is up (in service) or 0 (zero) if the Data Link is down  (out of service).

Cheers!

Rob

"Always movin' ahead and never lookin' back" - Springsteen

Yes it is a custom alert. I cannot get it to trigger at all. I switched to DatalinkinService and that works fine. Like I said though it is painfull to walk away from something that either I am misunderstanding the definition or it just doesn't work. But you read it the same way then right? Setting the threshold to under 1 and taking the controller down should send an alarm.

Rob Huffman
Hall of Fame Community Legend

Hi Derek,

I do read it the exact same way Maybe it's a bug. What version of CUCM and

RTMT?

Cheers!

Rob

PS: I like your persistence!

"Always movin' ahead and never lookin' back" - Springsteen

CUCM 7.1.3 and RTMT 8.1.  I know I know your going to say upgrade.

Rob Huffman
Hall of Fame Community Legend

Hey Derek,

No upgrade talk here .....we run 7.1(3b)su2 ...hahahaha

Let me do a bug scrub.

Cheers!

Rob

"Always movin' ahead and never lookin' back" - Springsteen

Rob Huffman
Hall of Fame Community Legend

Hi Derek,

I had a look for bugs related to this issue and came up empty (sorry )

I also had a talk with one of my peers and he says that he had an issue with

PRIspansinservice - alerts as well and just went with the datalinkinservice parameter

instead.

Sorry I couldn't come up with an exact answer here.

Cheers!

Rob

"Always movin' ahead and never lookin' back" - Springsteen

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