Control channel processor and switching mechanism

Details Control channel processor and switching mechanism Control channel processor and switching mechanism

H - Electricity

04

L

H04L 29/02 (2006.01) H04J 14/02 (2006.01) H04L 12/437 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2344299

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 (c0 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.

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