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Cisco Bug: CSCvu83433 - [N26] NAS Count in 5G to 4G HO scenario is not considered for MME DL NAS Message

Last Modified

Sep 17, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.20.0 21.20.1

Description (partial)

New Security context is sent towards the eNB than the mapped EPS security context received in FORWARD RELOCATION REQUEST from AMF.

Issue would be observed during 5GS to EPS Handover using N26 interface.
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