Guest

Preview Tool

Cisco Bug: CSCuw21831 - MME Co location with SGSN in Pool Not Achieved

Last Modified

Feb 20, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

18.3.0 19.0.v0.60839 19.2.d0 20.0.0 20.0.v0

Description (partial)

Symptom:
MME sends Served GUMMEI list for both LTE and Non-LTE RAT in a single list. Some ENodeB fails to send the TAU to the correct MME (collocated with previous SGSN) when subscriber does an INTER-RAT from 2G/3G to 4G with both MME and SGSN on pool.

Conditions:
This symptom is observed on Cisco ASR5000 MME running on software version 18.3.0, when MME sends Served GUMMEI list for both LTE and Non-LTE RAT in a single list (MME and SGSN in pool are co-located) instead of separated lists.
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.