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Cisco Bug: CSCum97724 - MME sends a superfluous SGsAP-UE-ACTIVITY-INDICATION

Last Modified

Feb 04, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0(43)

Description (partial)

Symptom:
MME induces MSS into erroroneous state because it sends a superfluous Activity Indication.

Conditions:
A new Paging attempt is done by SMSC so the MSS over SGs sends again a Paging(SMS indicator) to reach the UE who was set previously UNREACHABLE by default after the "SGsAP-ALERT-REQUEST (0x0d)" procedure. It seems that the MSS consider as "SGSAP PROTOCOL DATA MISSING" when the MSS receive "SGSAP Message Type: SGsAP-UE-ACTIVITY-INDICATION (0x10)"  after "SGSAP Message Type: SGsAP-SERVICE-REQUEST (0x06)" when "SGsAP-ALERT-REQUEST (0x0d)" procedure has been triggered previously.
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