Optimal fragmentation of multicast packets
US7792031B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2008 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Nov 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/166
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, a data source and a router are provided to fragment packets that are to be sent in multicast mode towards a plurality of destinations comprised in a multicast group. Each router along a path leading from the data source towards some of the destinations sends its maximum transmission unit value in an uplink direction. Each router directly connected to the data source calculates a lowest maximum transmission unit based on various maximum transmission unit values received from downstream routers. The data source receives from each of the directly connected routers a maximum transmission unit value, which is certain to be acceptable to all routers and destinations of the multicast group downstream of that directly connected router. The data source selects a lowest one of the received maximum transmission unit values and fragments data contents accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.