Method for protection of ethernet traffic in optical ring...

Details Method for protection of ethernet traffic in optical ring... Method for protection of ethernet traffic in optical ring...

2003-09-11

2009-11-17

Ngo, Ricky (Department: 2416)

Multiplex communications

Fault recovery

Bypass an inoperative station

C370S221000

Reexamination Certificate

active

07619967

ABSTRACT:
A method for protecting Ethernet data packets transmitted over SDH/SONET traffic in a ring-like optical network formed by a number of nodes, the method includes utilizing MS-SPRING/BLSR system for SDH/SONET traffic protection and, in case of one or more network failures that result in at least one isolated node in the network, the method comprises preventing initiation of a squelching algorithm of the MS-SPRING/BLSR system with respect to the SDH/SONET virtual containers carrying the data Ethernet packets, while ensuring that the standardized use of byte J1 is prevented with respect to the same SDH/SONET virtual containers carrying the Ethernet packets.

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ITU-T Recommendation G.841, “Types and characteristics of SDH network protection architectures”, (Oct. 1998), relevant pages only.

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