US Patent 7839795 Carrier Ethernet with fault notification

Patent 7839795 was granted and assigned to Ciena (company) on November, 2010 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Ciena (company)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7839795

Date of Patent

November 23, 2010

Patent Application Number

12002466

Date Filed

December 17, 2007

Patent Primary Examiner

‌

Kwang B Yao

Patent 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.