Ethernet automatic protection switching

Details Ethernet automatic protection switching Ethernet automatic protection switching

2005-06-16

2009-10-20

Jain, Raj (Department: 2416)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S401000

Reexamination Certificate

active

07606240

ABSTRACT:
Preventing a loop in a virtual network that spans at least two rings when there is a failure in two or more segments shared between the rings. A node connected to one of the shared segments is designated as the root blocker node and prevents transmitting data traffic between the node and all the ports connected thereto that have not failed except for one, in response to detecting the failure. For one embodiment the root blocker node periodically transmits a path detect signal to validate its blocking status.

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