[cisco-voip] Phones reset... For no reason

[Grabowski, David]

Thx for the reply, Wes...


CM traces say, "Last=Phone-Re-IP"

DHCP renew?

Why would that cause the phones to reset? 

> -----Original Message-----
> From: Wes Sisk [mailto:wsisk at cisco.com] 
> Sent: Wednesday, February 23, 2005 5:42 PM
> To: Grabowski, David
> Cc: cisco-voip at puck.nether.net
> Subject: Re: [cisco-voip] Phones reset... For no reason
> 
> When the phones re-register the first time after 
> unregistration, they report the reason they last unregistered from CM.
> Search for "Last=" in the detailed CCM traces, likely on the 
> backup server, or if phones could not connect to backup 
> either, then the message would appear in the traces on the primary.
> 
> The event viewer messages gives the server side of the story 
> 'why did the phones unregister'
> the Last= text gives the phone side of the story.
> 
> /Wes
> 
> Grabowski, David wrote:
> 
> >CM 3.3(4)sr2. One pub, one sub. About 50 phones, all 7960's.
> >
> >Over the weekend, I upgraded from OS 2000-2-6sr5 to 2000-2-7sr2.
> >
> >This afternoon, for seemingly no reason, most of our phones 
> just reset.
> >Event logs on the sub show a deregistration. Nothing else.
> >
> >Opened a case with TAC. They claim that since our servers
> >(MCS-7825-1133) are configured for autonegotiation, as are our 6500 
> >switches, that this must be the problem. I disagree.
> >
> >1. They've been this way for more than a year.
> >2. No (as in zero) errors on the switch ports. No (as in 
> zero) errors 
> >on the servers (netstat -e). Usually, when there's an 
> autonegotiation 
> >problem, we'd see errors 3. We have a third-party app that 
> monitors the 
> >server, down to the windows services. If there was a 
> connectivity issue 
> >(such that most of the phones would lose connection to it), 
> one would 
> >figure that our monitoring app would have had issues 
> connecting to the 
> >server and verifying that the services were up
> >
> >The only things that have happened recently are..
> >
> >1. The OS upgrade mentioned above
> >2. I was using IP Communicator on a desktop. Couldn't do a meet-me 
> >conference -- not sure why not. Event logs show errors with 
> >"ConferenceNoMoreResourcesAvailable"  (I doubt that this is related, 
> >just including it here for completeness)
> >
> >Any ideas?
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