[cisco-voip] Does anyone know how long it takes a phone that has been disconnected from CUCM to change from an unregistered status to an unknown status?

[Matthew Berry]

Great info, Nicholas!

Thanks!

Matthew Berry, CCIE #26721 (Voice)
Sr. Unified Communications Engineer, CDW
+1.763.592.5987  |  protocol.by/matthewberry

On Nov 11, 2011, at 6:54 AM, Nicholas Samios wrote:

I suspect there’s a cron purge/cleanup job of the shared memory segments which results in unregistered phones moving to unknown status after X time or CCM process restart.
I see devices go unknown usually after ~48-72hrs which leads me to believe a cron running over the shared memory of CCM process.

Wes has a great write up (as always) on the difference between the two;
http://www.gossamer-threads.com/lists/cisco/voip/146615?do=post_view_threaded

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matthew Berry
Sent: Friday, November 11, 2011 11:49 PM
To: Matthew Loraditch
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>; Simon Nhlapo (ZA)
Subject: Re: [cisco-voip] Does anyone know how long it takes a phone that has been disconnected from CUCM to change from an unregistered status to an unknown status?

I believe you're correct in that assumption.  As long as the phone has registered during the current "uptime session" of the CUCM, the IP address is cached in the system.

Thanks!

Matthew Berry, CCIE #26721 (Voice)
Sr. Unified Communications Engineer, CDW
+1.763.592.5987  |  protocol.by/matthewberry

On Nov 11, 2011, at 6:42 AM, Matthew Loraditch wrote:


I thought I had read something along the lines of phones only show up as unknown if they had never registered to CUCM during the current cluster uptime. Basically only a full reboot would put an unregistered phone to unknown. I don’t remember where I read this and I could be totally wrong so don’t hold me to it, but if I’m close to right hopefully it might jog someone else’s memory of the complete answer.


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From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Simon Nhlapo (ZA)
Sent: Friday, November 11, 2011 7:14 AM
To: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>
Subject: [cisco-voip] Does anyone know how long it takes a phone that has been disconnected from CUCM to change from an unregistered status to an unknown status?


Hi All,

Does anyone know how long it takes a phone that has been disconnected from CUCM to change from an unregistered status to an unknown status?

Regards
Simon


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