Device Watchdog Messages
The device watchdog message sequence, DWR/DWA, is standard Diameter messaging used on idle connections to check peer availability and detect transport failures. Watchdog messaging can determine availability status between client and server. The sequence is initiated by both the SLRM function and the Oracle Communications Core Session Manager depending on the devices' inter-operational state and the timing of the last successful exchanges.
On idle connections, this message is sent at a default interval of 60 seconds.
If watchdog messaging's is unable to confirm connectivity, the SLRM de-registers the applicable Oracle Communications Core Session Manager and removes it from any load-balance pools.