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Cisco Bug: CSCuq42053 - Assertion Failure at sgwdrv_pdn_fsm_st_connected_evt_delete_bearer_cfm()

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

17.0(1)

Description (partial)

Symptom:
When MME/S4-SGSN replies with LBI and EBI in DBRes during Dedicated Bearer Clear Procedure.

First DBRes gets rejected by SGW ingress,

2014-Aug-18 12:17:51.395 [egtpc 141009 unusual] [2/0/4470 <sessmgr:31>
tpc_interface.c:2507] [context: EPC1, contextID: 3]  [software internal user protocol-log
syslog] [sgw-ingress] Rcvd malformed EGTP_MSG_DELETE_BEARER_RESPONSE with sequence number:1567,
from <10.10.10.1, Port:2123>. Message validation failed. Invalid Message format: LBI and
Ebi List present.Only one can exist.. 

SGW retries DBReq and MME/S4-SGSN replies with Cause REQUEST_REJECTED and crash is obeserved.

Conditions:
Running version of the software prior to the Known Fixed Releases.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
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