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:
Jan. 20, 2015

Filed:

Sep. 27, 2010
Applicants:

Kunal Shah, Mountain View, CA (US);

Avoy Nanda, Milpitas, CA (US);

Inventors:

Kunal Shah, Mountain View, CA (US);

Avoy Nanda, Milpitas, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/18 (2006.01); H04L 12/801 (2013.01);
U.S. Cl.
CPC ...
H04L 12/185 (2013.01); H04L 12/1886 (2013.01); H04L 47/15 (2013.01); H04L 47/12 (2013.01);
Abstract

A multicast router is coupled with a multicast enabled layer 2 device that is coupled with a source of multicast data traffic for multicast groups. Responsive to determining that the amount of bandwidth currently being attributed as being used by the subscriber exceeds its allowed bandwidth limit due to oversubscription of multicast groups, the multicast router switches from periodically transmitting multicast membership general query messages to the multicast hosts of the subscriber, to transmitting one or more multicast membership group-specific query messages to one or more multicast hosts of the subscriber for a subset of the subscribed multicast groups to impede the subscribed multicast groups that are not part of the subset from being refreshed to cause the multicast data traffic for those multicast groups from being transmitted on the access network to the multicast hosts of the subscriber.


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