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:
May. 10, 2016
Filed:
Jun. 22, 2015
Ciena Corporation, Hanover, MD (US);
Nigel Lawrence Bragg, Cambridge, GB;
Ian Hamish Duncan, Ottawa, CA;
Ciena Corporation, Hanover, MD (US);
Abstract
A source Multiprotocol Label Switching (MPLS) network element, a destination MPLS network element, and a MPLS method are disclosed which introduce the concept of a source label into the MPLS label stack for source identification preservation. The source label can located at the bottom of the label stack thereby being a last item popped in the MPLS stack at the destination node, or indicated subsequent to an explicit reserved label identifier. The source label is used for maintaining Operations, Administration, and Maintenance (OAM) data efficiently without requiring deep packet inspection.
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