[cisco-voip] Cisco VOIP PRI interface error C5510-1-C5510_CHPI_ERROR

[John Lange]

We have a Cisco router with a VOIP PRI card installed. It seems to be
working well but all of suddent today we had 2 or 3 times where the
devices started logging this error (via syslog):

C5510-1-C5510_CHPI_ERROR: cHPI error for pa_bay 0 pump 0 dsp 9.

There were hundreds of these errors in the span of a few seconds and all
active calls where dropped.

Google didn't return anything particularly illuminating. The cisco page

http://www.cisco.com/en/US/docs/ios/12_3t/system/messages/smg2tmsb.html

says:

Explanation: The FPGA has detected a protocol error involving the cHPI.

Can anyone shed some light on this issue?

Regards,
-- 
John Lange
www.johnlange.ca