[cisco-voip] troubleshooting IP phone 7960 keepalives

[Justin Steinberg]

I have some phones that periodically reset themselves at random times
during the day, I even have some instances when the phone reset itself
while on an active call.

When I look at a detailed callmanager trace i see the following entries:

11/15/2005 15:21:29.108 CCM|StationInit - Keep alive timeout.:
000000741|<CLID::xxxCMPUB01-Cluster><NID::10.xxx.xxx.xxx><CT::2,100,90,1.1122347><IP::10.xxx.xxx.xxx><DEV::SEP000C853Bxxxx>
11/15/2005 15:21:29.108 CCM|StationInit - Closing Station connection
DeviceName=SEP000C853Bxxxx, TCPHandle=000000741,
IPAddr=10.xxx.xxx.xxx, Port=52056, Device
Controller=[2,89,737]|<CLID::xxxCMPUB01-Cluster><NID::10.xxx.xxx.xxx><CT::2,100,90,1.1122347><IP::10.xxx.xxx.xxx><DEV::SEP000C853Bxxx>
11/15/2005 15:21:29.108 CCM|DeviceUnregistered - Device unregistered.
Device name.:SEP000C853Bxxx Device IP address.:10.xxx.xxx.xxx Device
type. [Optional]:7 Device description [Optional].:John Johnson 1128
Reason Code [Optional].:8 App ID:Cisco CallManager Cluster
ID:xxxCMPUB01-Cluster Node


It seems like the phone is reporting to the CallManager that it is not
receiving keepalives and so the phone reboots.  I noticed that
detailed callmanager traces log the incoming keepalives that the
phones send to CallManager.  But I do not see the callManagers
KeepAliveAcks in the detailed CCM trace log.  Do I have to run a
packet capture to see this?

Also, the phones and CallManager are on the same lan - so latency/loss
SHOULD not be an issue.

TIA

justin