This attribute specifies the default transfer priority to network for
all outgoing calls using this particular Dna. It can overRide
the outDefaultTransferPriority provisioned in the Dna component.
The transfer priority is a preference specified by an application
according to its time-sensitivity requirement. Frames with high
transfer priority are served by the network before the frames with
normal priority.
The transfer priority in Passport determines two things in use: trunk
queue (among interrupting, delay, throughput), and routing metric
(between delay and throughput).
The following table details each transfer priority.
The default of outDefaultTransferPriority is useDnaDefTP.