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Cisco Bug: CSCvt34756 - EPC: MME, Reversed_message_order_ULR_CSReq_In_case_GUTI_Attach

Last Modified

Sep 17, 2020

Products (2)

  • Cisco ASR 5000 Series
  • Cisco ASR 5500

Known Affected Releases

21.17.4.74595

Description (partial)

Symptom:
In case GUTI attach(with local GUTI) is triggered with below CLI,
  Unexpectedly MME send CSReq and then sending ULR.

It will block the feature, PGW selection based on UUT in ULA.
Looks like MME select PGW based on UE-DB not from UUT coming from ULA.

Conditions:
build 21.15 with implicit ULR feature configured
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