Bug ID 694318: PEM subscriber sessions will not be deleted if a CCA-t contains a DIAMETER_TOO_BUSY return code and no request type AVP.

Last Modified: May 14, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP PEM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3,,,,, 11.6.4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,

Fixed In:

Opened: Nov 13, 2017
Severity: 3-Major


Subscriber sessions in PEM will be stuck in a "Marked for Delete" state.


Subscriber sessions stuck in delete pending resulting in a potential increase in memry consumption over a period of time.


1. PEM provisioned with Gx. 2. PCRF responds to a CCR-t with a DIAMETER_TOO_BUSY return code and no Request type AVP.


Mitigation: PCRF (remote Diameter end point) must send a CCA-t with a request type AVP in case a DIAMETER_TOO_BUSY return code is present.

Fix Information

Handle the DIAMETER_TOO_BUSY return code on a CCA-t regardless of the request type AVP.

Behavior Change