Guest

Preview Tool

Cisco Bug: CSCvv28114 - [MME] S1AP encoding of InitialContextSetup Request fails with MDT configuration

Last Modified

Sep 17, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.20.3.private 21.20.4

Description (partial)

Symptom:
With MDT enabled in mme-service config, S1AP encoding of InitialContextSetup request message fails and the message is not sent towards eNB for Attach and TAU procedures when MME is configured to include S1AP MDT IE along with below IEs:
-> InitialContextSetup Request message is sent with UE NR capability IE for 5G SA (N1-Mode)/5G NSA (DCNR) capable UEs (and/or)
-> InitialContextSetup Request message is sent with Additional CSFallback Indicator IE.

Conditions:
With "minimization-drive-test" configured in mme-service configuration mode.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.