Method for multicasting of packets in PON residential gateways
US8121123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Aug 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0073
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for multicasting packets in a passive optical network (PON) residential gateway. The method comprises storing a payload portion of an input packet in a memory; duplicating a header of the input packet to create duplicate headers as the number of destination end-point devices; modifying each of the duplicated header to uniquely designate an output interface of an Ethernet medium access (MAC) adapter coupled to at least one of the destination endpoint devices; passing to the Ethernet MAC adapter its respective modified header together with a pointer to a location of the payload portion in the memory; generating a multicast packet by retrieving the payload portion from the memory and attaching the modified header to the payload portion; and transmitting the multicast packet to the destination endpoint device coupled to the Ethernet MAC adapter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.