SCCP Buffer Full Error

Added by Gary Meola 10 days ago

Trying to get some Cisco SCCP phones working with Wazo 17.11.
They register just fine, for exactly 1 minute. Then re-registers every minute.
I have tried changing the timeout on the SCCP Protocol page. Does not seem to help.

The phone will work perfectly for one minute. Place calls, receive calls, transfer, check voicemail.
Then it will drop any calls currently active on that device and quickly re-register.

Cisco 7942 - Idle will produce this error

wazo*CLI>
[Aug 11 10:05:27] WARNING[8580]: sccp_msg.c:608 sccp_deserializer_read: sccp deserializer read failed: buffer is full
[Aug 11 10:05:27] WARNING[8580]: sccp_session.c:404 sccp_session_read_sock: Deserializer buffer is full -- probably invalid or too big message
[Aug 11 10:05:27]        > SCCP connection from 10.10.8.106:33997 closed
[Aug 11 10:05:30]        > New SCCP connection from 10.10.8.106:43935 accepted
[Aug 11 10:05:30]     -- Registered SCCP(17) 'SEP0023331AFECB' at 10.10.8.106:43935
[Aug 11 10:06:27] WARNING[9235]: sccp_msg.c:608 sccp_deserializer_read: sccp deserializer read failed: buffer is full
[Aug 11 10:06:27] WARNING[9235]: sccp_session.c:404 sccp_session_read_sock: Deserializer buffer is full -- probably invalid or too big message
[Aug 11 10:06:27]        > SCCP connection from 10.10.8.106:43935 closed
[Aug 11 10:06:30]        > New SCCP connection from 10.10.8.106:38545 accepted
[Aug 11 10:06:30]     -- Registered SCCP(17) 'SEP0023331AFECB' at 10.10.8.106:38545
wazo*CLI>


Any ideas ???


Replies (3)

RE: SCCP Buffer Full Error - Added by Sébastien Duthil 10 days ago

Wow, never seen that one...
Could you factory-reset the phone, to make sure there's no custom configuration?
If that doesn't change anything, could you give us a network capture over TCP port 2000? Also, the Asterisk logs (/var/log/asterisk/full) with core set debug 255 would be nice, along with the output of the Asterisk commands sccp show devices and sccp show config.

RE: SCCP Buffer Full Error - Added by Gary Meola 10 days ago

First suggestion fixed my issue. Factory Reset !

Turns out I had old firmware on the 7942. Tested a 7941, no issues.
Firmware 8.4.3 on a 7942G from way back in 2009.
Once I did a factory reset then it pulled the 9.4 SP1 files from the tftp plugin all seems to be good.

Did not realize that an old firmware could cause so much issue.

Thanks for the help gentlemen,
~Gary

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