System for multicast communications in packet switched networks
US6625773B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1999 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Jun 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0093
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multicast communication system for small groups using a protocol to indicate to routers receiving a packet according to the protocol to perform the following process: (1) determining a next hop for each of the destination nodes listed in the packet received; (2) partitioning the destination nodes into groups according to the next hop determined for each destination node in the preceding step; (3) replicating the packet such that there is at least one copy of the packet for each of the next hops; (4) modifying the list of addresses for the destination nodes such that the list of addresses for each of the next hops includes only the addresses for the destination nodes to be routed in that next hop; and (5) transmitting the modified copies of the packet to the next hops found in the previous steps for routing to the addresses included in each packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.