Last Modified: Oct 06, 2020
See more info
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
12.1.0, 12.0.0 HF1, 12.0.0, 11.6.0 HF6
Opened: May 28, 2015
Related AskF5 Article: K02093894
If PEM sends CCR-U, and PCRF responds with CCA-U (PCRF lost session), PEM ignores the response and sends CCR-U.
Session remains for a long period of time with PCRF not acknowledging.
PCRF lost session (reboot/failover) and responds to session update requests with unknown session ID.
To enable PCRF can get the context back, it is recommended that you delete the session on the PEM end (configurable), and also recreate the same session (configurable). When PCRF indicates that the session ID unknown, set the following Sys db variable to TRUE to have PEM delete the session: tmm.pem.diameter.application.trigger.delete.onPeer.failure. To have PEM recreate the session, set the following Sys db variable to TRUE: tmm.pem.session.ppe.recreate.afterPeerFailure.
PCRF no longer returns unknown session ID in middle of session.