Distinguishing between link and node failure to facilitate...

Multiplex communications – Fault recovery – Bypass an inoperative station

Reexamination Certificate

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C370S225000

Reexamination Certificate

active

07986618

ABSTRACT:
Systems and methods for distinguishing a node failure from a link failure are provided. By strengthening the assumption of independent failures, bandwidth sharing among backup tunnels protecting links and nodes of a network is facilitated as well as distributed computation of backup tunnel placement. Thus a backup tunnel overlay network can provide guaranteed bandwidth in the event of a failure.

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