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Cisco Bug: CSCut61839 - Fatal Signal 6: Aborted at client_bounce()

Last Modified

Feb 06, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.1.2.59147

Description (partial)

Symptom:
Unexpected EgtpinMgr Recovery is observed on active Cisco ASR5000.

Conditions:
The problem is seen due to an issue with Gx Config, so most of the GnGp handoffs are being rejected. The call model also involves a high number of GnGp Handoffs.

Sessmgr sends Update trigger to Demux(EgtpinMgr) on GnGp handoff as peer changes. As handoff is rejected and call is cleaned, additional Delete trigger is being sent to Demux. This creates a congestion at the Demux. The Demux finally reloads unexpectedly when CPU reaches 100%.

The Path-Failures due to No-response from peer are also observed as Demux is too busy to handle Echo Rsp from the peer, which are getting dropped & later seen as Path-failures. These path-failures are false ones & peers are responding Echo Rsp on time.
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