Inventors:
Daniel Y. Al-Salameh - Marlboro NJ
Mario F. Alvarez - Beachwood NJ
David S. Levy - Freehold NJ
Jithamithra Sarathy - Eatontown NJ
Anastasios Tzathas - Howell NJ
Assignee:
Lucent Technologies Inc. - Murray Hill NJ
International Classification:
H04B 1008
US Classification:
398 30, 398 3, 398 19, 398 31, 398 33, 398 45, 398 59, 370221, 370222, 370535
Abstract:
A facility is provided to allow a supervisory message to quickly propagate through a transmission network without delay. Specifically, a supervisory message is quickly routed from one node to a next node by (a) splitting the control channel signal carrying the supervisory message at a receiving node, (b) sending one of the split control channel signals to an output via switchable apparatus for immediate transmission the next node and (c) sending the other split signal to a controller for analysis. If the controller invokes a predetermined procedure as a result of the content of the message, e. g. , invokes protection switching, then the controller forms a supervisory message identifying the invoked procedure, operates the switchable apparatus so that the message identifying the invoked procedure may be routed to the output in place of the split channel signal message.