[cisco-voip] CUCM engineering special versions

[Eric Pedersen]

Lelio,
The bug we're hitting is CSCum05362. Conference sessions are getting stuck on our ISRs:

#show sccp conn
sess_id    conn_id      stype mode     codec   sport rport ripaddr conn_id_tx

146265514  134359424    conf  inactive UNKNOWN 20026 0     UNKNOWN

Total number of active session(s) 1, and connection(s) 1

It's bad because CUCM thinks there are no active conferences, but this stuck call is consuming a conference session on the ISR. CUCM then may try to start too many conferences on the ISR, causing calls to drop.  The stuck calls don't happen with every conference that's created and I couldn't figure out the exact scenario that's causing it.  If you use hardware conference bridges you may want to monitor them to see if you run into this.

Other than this, we haven't had any problems with 9.1(2)SU1.

Eric

From: Lelio Fulgenzi [mailto:lelio at uoguelph.ca]
Sent: 19 February 2014 6:30 PM
To: Brian Meade (brmeade)
Cc: cisco-voip at puck.nether.net; Ryan Ratliff (rratliff); Eric Pedersen
Subject: Re: [cisco-voip] CUCM engineering special versions


That's good info. Thanks. We're planning on an upgrade at end of April and we did most of our tests with 9.1(2), but we're planning on using 9.1(2)SU1 for the upgrade, since we're rebuilding beginning mid-April. Chances are we'll stick with 9.1(2)SU1 and see what caveats SU2 fixes when it comes out.

Cheers...

Lelio

---
Lelio Fulgenzi, B.A.
Senior Analyst, Network Infrastructure
Computing and Communications Services (CCS)
University of Guelph

519‐824‐4120 Ext 56354
lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>
www.uoguelph.ca/ccs<http://www.uoguelph.ca/ccs>
Room 037, Animal Science and Nutrition Building
Guelph, Ontario, N1G 2W1

________________________________
From: "Brian Meade (brmeade)" <brmeade at cisco.com<mailto:brmeade at cisco.com>>
To: "Lelio Fulgenzi" <lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>>, "Eric Pedersen" <PedersenE at bennettjones.com<mailto:PedersenE at bennettjones.com>>
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>, "Ryan Ratliff (rratliff)" <rratliff at cisco.com<mailto:rratliff at cisco.com>>
Sent: Wednesday, 19 February, 2014 7:51:49 PM
Subject: RE: [cisco-voip] CUCM engineering special versions
Lelio,

I’m not sure what the schedule is like but looking at previous SU releases, they usually come out about every 4-5 months.  9.1(2)SU1 came out 12/06/2013 so I’d say there would probably be one coming out around April.

Copying Ryan to see if he knows the target date.

Brian

From: Lelio Fulgenzi [mailto:lelio at uoguelph.ca]
Sent: Wednesday, February 19, 2014 7:16 PM
To: Brian Meade (brmeade); Eric Pedersen
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: Re: [cisco-voip] CUCM engineering special versions

Eric - Can you share the bug your hitting?

Brian - do you know when th next SU is scheduled/planned for?

Sent from my iPhone

On 2014-02-19, at 6:42 PM, "Brian Meade (brmeade)" <brmeade at cisco.com<mailto:brmeade at cisco.com>> wrote:
Eric,

The SU version numbers don’t exactly line up with the ES version numbers.

9.1.2.11900-12 (9.1.2 SU1) was actually built off of the 9.1.2.11006-1 Engineering Special so the 9.1.2.11021.1 ES he told you to go to will indeed be a newer release.

Thanks,
Brian

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Eric Pedersen
Sent: Wednesday, February 19, 2014 6:13 PM
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: [cisco-voip] CUCM engineering special versions

TAC is suggesting we go to CUCM 9.1.2. 11021.1, which is an engineering special, to fix a defect. We're already on 9.1.2 SU1. The version number for this is 9.1.2.11900-12 which is higher than the ES. I thought patches always meant going up in version numbers. Do SU versions work differently than ESs or is the engineer offering the wrong version?

Thanks,
Eric

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