The value of tmnxMobGwNtfyDiameterReasonCode indicates the reason
why the peer connection has been brought down.
The value of 'none' indicates that the connection is active.
The value of 'unknown' indicates that the reason is not known.
The value of 'adminDown' indicates that the peer is not referenced by
the mobile gateway in service.
The value of 'dwrTimeout' indicates that Device Watchdog Request (DWR)
timed out.
The value of 'permFailureRecvd' indicates that a permanent failure
is received.
The value of 'dnsFailure' indicates that a Domain Name Server (DNS)
failure occurred.
The value of 'dprRecvd' indicates that a Disconnect Peer Request (DPR)
has been received.
The value of 'remoteDisconnect' indicates that the remote side has
closed the connection.
The value of 'localDisconnect' indicates that the local side has closed
the connection.
The value of 'peerAdded' indicates that a peer has been added.
The value of 'peerDeleted' indicates that a peer has been deleted.
The value of 'peerActive' indicates that a peer is active.