The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Oct. 12, 2007
Alan Mcguire, Felixstowe, GB;
Sergio F. O. Inglima, Ipswich, GB;
Alan McGuire, Felixstowe, GB;
Sergio F. O. Inglima, Ipswich, GB;
British Telecommunications public limited company, London, GB;
Abstract
A method of implementing a p-cycle protection scheme for a communications network comprising a plurality of nodes and interconnecting communications links along which Ethernet traffic is forwarded in a connection-oriented manner. The method comprises for each said Ethernet node in the communications network determining a label associated with each connection-oriented Ethernet path along one or more links in said communications network for which an entry exists in a forwarding table of Ethernet switching apparatus located at said Ethernet node and mapping a plurality of said paths individually identified by said respective labels, to another path defining a p-cycle between logically adjacent nodes in said communications network, wherein each said p-cycle is provisioned in the same layer as said Ethernet traffic.