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.

Date of Patent:
Mar. 07, 2023

Filed:

Aug. 06, 2020
Applicant:

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

Inventors:

Ijsbrand Wijnands, Leuven, BE;

Gregory J. Shepherd, Eugene, OR (US);

Nagendra Kumar Nainar, Morrisville, NC (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/18 (2006.01); H04L 45/74 (2022.01); H04L 45/16 (2022.01); H04L 45/00 (2022.01); H04L 45/50 (2022.01);
U.S. Cl.
CPC ...
H04L 12/1886 (2013.01); H04L 12/18 (2013.01); H04L 45/16 (2013.01); H04L 45/66 (2013.01); H04L 45/74 (2013.01); H04L 45/50 (2013.01);
Abstract

Functionality for creating a bit routing table for use in a bit-indexed explicit replication ('BIER') environment in disclosed herein. In one embodiment, this functionality includes receiving information from a host, and determining whether the information comprises a MAC address that is a bit-indexed explicit replication ('BIER') MAC address. In response to determining that the information comprises a BIER MAC address, this functionality creates an entry corresponding to the MAC address in a bit routing table. This functionality also analyzes the information to determine a bit position that is associated with the host, and also determines a port via which the host is reachable. The functionality updates the bit routing table by storing information identifying the bit position and the port in the entry, such that the bit position and the port both correspond to the MAC address. This functionality can be used to route packets in a BIER environment.


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