Carrier Ethernet with fault notification

Details Carrier Ethernet with fault notification Carrier Ethernet with fault notification

2007-12-17

2010-11-23

Yao, Kwang B (Department: 2473)

Multiplex communications

Diagnostic testing

Fault detection

C370S216000

Reexamination Certificate

active

07839795

ABSTRACT:
A method of fault notification in a carrier Ethernet having the capability of generating and transmitting OAM packets having flag fields, comprises inserting a bit in one of the flag fields to indicate the presence of service-affecting information in the OAM packets, detecting the presence of the inserted bit at the end of a data path, and performing a service protection action in response to the detection of the inserted bit prior to parsing the information in the message. One type of service protection action is protection switching.

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