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Cisco Bug: CSCum03645 - LTE to 3G IRAT-idle mode failed due to missing RNC TEID in EGTP_UBR.

Last Modified

Feb 06, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases


Description (partial)

SGSN doesn't sent S12U-FTEID in Update Bearer Response, as a result of which the message is getting discarded at SGW.

1) New Israu from peer MME
2) There is a change in QoS from subscritption
3) SGSN initiates Modify Bearer Command
4) Received Update Bearer Request from PGW
5) Since RAB is not available SGSN immediately sends UBR Response
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