Path changing system and method for use in atm communication...

Details Path changing system and method for use in atm communication... Path changing system and method for use in atm communication...

H - Electricity

04

L

H04L 12/54 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2131080

An asynchronous transfer mode (ATM) path changing system and method for use in an ATM communication apparatus and ATM communication network are provided which can set an alternate route in the event of a failure occurring in a transmission line or virtual path (VP). A header converter in a line controller includes a plurality of output path routing tables, a selector, a comparator, a register for failure routing information (RTG) and a register for failure virtual path identifier (VPI) and when the contents of the register for failure RTG or VPI coincides with a RTG or VPI of the output path routing tables, an output is selected in accordance with the contents of a selected emergency-route RTG or VPI register.

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