This attribute specifies the delay before faults detected at the VP
layer are propagated to the VC layer, and thus to the application
using the connection.
If the value is 0 (zero), applications using a VirtualPathTerminator
are immediately notified of faults detected by the VP. Using this
value allows these applications to be advised of faults without
requiring loopbacks on each Vcc. Typically, the application goes out
of service when advised of a fault.
If the value is infinity, applications are not notified of VP layer
faults. Using this value allows the applications to survive transient
VP layer fault conditions.
The value chosen applies only to Vpts and Vccs directly beneath a
Vpt.