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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.:

US 10581732 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Jan. 28, 2019

Target fec (forwarding equivalence class) stack based fec query in segment routing environments

Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Nagendra Kumar Nainar, Morrisville, NC (US);

Carlos M. Pignataro, Raleigh, NC (US);

Faisal Iqbal, Ottawa, CA;

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:

Cindy Kaplan

Primary Examiner:

Salvador E Rivas

Int. Cl.
CPC ...
H04L 1/00 (2006.01); H04L 12/723 (2013.01); H04L 12/911 (2013.01); H04L 12/721 (2013.01); H04L 12/701 (2013.01); H04L 12/751 (2013.01); H04L 12/703 (2013.01); H03M 13/47 (2006.01); H04L 12/733 (2013.01); H04W 12/10 (2009.01);
U.S. Cl.
CPC ...
H04L 45/50 (2013.01); H03M 13/47 (2013.01); H04L 1/004 (2013.01); H04L 45/00 (2013.01); H04L 45/02 (2013.01); H04L 45/20 (2013.01); H04L 45/26 (2013.01); H04L 45/28 (2013.01); H04L 47/825 (2013.01); H04W 12/1002 (2019.01);
Abstract

In one embodiment, a method includes generating a trace request at an initiator node configured for segment routing, the trace request comprising an FEC (Forwarding Equivalence Class) query corresponding to a label in an FEC stack with an unknown FEC, transmitting the trace request on a path with the unknown FEC, and receiving a response to the trace request, the response comprising FEC information including an identifier associated with a label and a forwarding path and representing a class or category of packets. An apparatus is also disclosed herein.

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Nainar, Nagendra. (2020). Target fec (forwarding equivalence class) stack based fec query in segment routing environments (U.S. Patent No. 10581732). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10581732

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