US Patent 7983255 Using Q-in-Q-in-Q to implement ethernet service unit ring

Patent 7983255 was granted and assigned to Avaya on July, 2011 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Avaya

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7983255

Date of Patent

July 19, 2011

Patent Application Number

12002745

Date Filed

December 17, 2007

Patent Citations Received

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US Patent 11962397 Layer-2 connectivity from switch to access node/gateway

Patent Primary Examiner

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Gregory B Sefcheck

Patent abstract

A second VLAN tag is prepended to a packet prepended with a first VLAN tag when the packet is forwarded from a first port to a second port to result in an Q-in-Q packet. The second port has output connected to input of a third port. A third VLAN tag is prepended to the Q-in-Q packet when the Q-in-Q packet is forwarded from the third port to a fourth port to result in an Q-in-Q-in-Q packet.