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: Jul 18, 2026

Affected Product(s):
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, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 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, 12.1.3.1, 13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3

Fixed In:
14.0.0, 13.1.0.4, 12.1.3.2

Opened: Nov 13, 2017

Severity: 3-Major

Symptoms

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

Impact

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

Conditions

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

Workaround

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

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips