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:
Dec. 01, 2020

Filed:

Feb. 06, 2019
Applicant:

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

Inventors:

Mankamana Prasad Mishra, Dublin, CA (US);

Pascal Thubert, La Colle sur Loup, FR;

IJsbrand Wijnands, Leuven, BE;

Krishnaswamy Ananthamurthy, San Ramon, CA (US);

Ramakrishnan Chokkanathapuram Sundaram, Fremont, CA (US);

Stig Ingvar Venaas, Oakland, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/28 (2006.01); H04L 12/721 (2013.01); H04L 12/761 (2013.01); H04L 12/749 (2013.01); H04L 12/755 (2013.01); H04L 12/753 (2013.01);
U.S. Cl.
CPC ...
H04L 45/34 (2013.01); H04L 45/021 (2013.01); H04L 45/16 (2013.01); H04L 45/38 (2013.01); H04L 45/48 (2013.01); H04L 45/741 (2013.01);
Abstract

In one illustrative example, a network node connected in a network fabric may identify that it is established as part of a multicast distribution tree for forwarding multicast traffic from a source node to one or more host receiver devices of a multicast group. In response, the network node may propagate in the network fabric a message for advertising the network node as a candidate local source node at which to join the multicast group. The message for advertising may include data such as a reachability metric. The propagation of the message may be part of a flooding of such messages in the network fabric. The network node serving as the candidate local source node may thereafter 'locally' join a host receiver device in the multicast group at the network node so that the device may receive the multicast traffic from the source node via the network node.


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