Techniques for distributing information using multicast subsets
US7623474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2006 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Aug 20, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/1868
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.