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:
Nov. 24, 2009
Filed:
Feb. 14, 2006
Thuan Van Tran, Cary, NC (US);
Yi Yang, Morrisville, NC (US);
Liem Nguyen, San Jose, CA (US);
Russell White, Holly Springs, NC (US);
Donnie Van Savage, Raleigh, NC (US);
Thuan Van Tran, Cary, NC (US);
Yi Yang, Morrisville, NC (US);
Liem Nguyen, San Jose, CA (US);
Russell White, Holly Springs, NC (US);
Donnie Van Savage, Raleigh, NC (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Techniques for sending data in a packet-switched communications network include determining multiple subsets of adjacent network nodes of the network. The adjacent network nodes communicate without intervening network nodes with a particular network node through an interface on the particular network node. Each subset includes multiple adjacent network nodes. Subset definition data is sent through the interface. The subset definition data indicates which adjacent network nodes belong to which subset. Data for fewer than all adjacent network nodes in all subsets are sent by including, in a multicast data packet sent over the interface with a multicast destination address, subset identifier data that indicates a particular subset. When such data is received by a node, it is discarded unless the subset identifier matches the receiving node's subset identifier. Among other effects, this allows routing messages to be more efficiently sent to better performing neighboring network nodes.