The value of tmnxMobProfDiaWatchdgTimer specifies the maximum amount
of time the node waits for a diameter peer to respond to watchdog
packet. When the watchdog timer expires, a Device-Watchdog-Request
(DWR) is sent to the diameter peer and the watchdog timer
is reset. If a Device-Watchdog-Answer (DWA) is not received before
the next expiration of the watchdog timer, transport failure to the
Diameter peer has occurred.