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Cisco Bug: CSCtb71551 - UC with PIMG fails Keep Alive and erroneously places port out of service

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Unity Connection

Known Affected Releases


Description (partial)


Cisco Unity fails 60 second keep alive and regardless of what happens within the next 30 second ack we put that port out of service.


Cisco Unity sends a Keep Alive to each PIMG device every 60 seconds and it expects the PIMG device to respond with an ACK within 30 seconds. If an ACK is not received within 30 seconds, Cisco Unity connection will reduce the Keep Alive interval to 30 seconds so we are able to detect a potential outage quicker. Even though Cisco Unity Connection may receive an ACK within 30 seconds it still places that port out of service.
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