High speed switching router using APS and method for...

Details High speed switching router using APS and method for... High speed switching router using APS and method for...

2007-10-30

2007-10-30

Lee, Andrew C. (Department: 2616)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S220000

Reexamination Certificate

active

10370584

ABSTRACT:
In a method of switching a current use communication line between first and second communication lines provided between first and second units, link data is previously held in a first physical interface for the first communication line as the current use communication line and a second physical interface for the second communication line. The current use communication line is switched from the first communication line to the second communication line when a fault is detected in relation to the first communication line. The second communication line is established as the current use communication line for data transfer between the first and second units based on the link data.

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