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:
Oct. 15, 2013
Filed:
Feb. 25, 2011
Kunal R. Shah, Mountain View, CA (US);
Kunal R. Shah, Mountain View, CA (US);
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
In a proxy for an upstream multicast router using IGMP or MLD, a process efficiently and scalably manages an interface between the upstream multicast router and the proxy by tracking a subset of multicast sources from the plurality of multicast sources required by an aggregate state of the plurality of multicast subscriber nodes. The tracking uses an interface tracking table for determining the aggregate state for the interface instead of a forwarding information base (FIB) and membership database that tracks more specific data detailing each multicast source required by each multicast subscriber node. The process receives an IGMP or MLD membership report with at least one change in the set of multicast sources to be received on the interface, updates the interface tracking table to reflect the at least one change in the subset of multicast sources and notifies the upstream multicast router of the at least one change.