Technique for forwarding multi-cast data packets
US6553030B2 · kind B2 · utility
35Cited by
15References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Oct 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5679
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique for forwarding multi-cast data packets in a communication network. Multi-cast packets are broadcast to every output port of the switch. The packet is thus buffered in each port. Then, all of the output ports, save those that are appropriate output ports for the packet, drop the packet. Accordingly, the output ports that did not drop the packet forward the packet to the network. A control packet that follows the packet may then instruct the ports regarding which ports are to drop the packet and which ports are to forward the packet. This technique has an advantage of efficiently handling multi-cast packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.