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Cisco Bug: CSCun47639 - Major Issues on associated enodebs on mme.

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0(41)

Description (partial)

Symptom:
Massive fluctuations from eNBs (S1-MME associations to between MME and eNBs). This impacted practically the whole Luzon region (982 associated eNBs).

Conditions:
There has been no crashes seen on MME just before or during or after the event

S1 associations going down and coming back up due to Path being inactive. 

SCTP statistics shows lots of retransmissions happening 

There is evidence of diameter peers (S6a) going down and coming back up 
There is evidence of VLR associations too going down and coming back up
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