Method and apparatus for multicast management of user interface in a network access device
US7590749B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Oct 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/185
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method and apparatus for multicast management of user interface in a network access device, which comprises setting a user multicast information table for the user interface in the network access device, IGMP protocol processing unit obtaining the user identification information from a user IGMP message, retrieving and updating the user multicast information table based on types of multicast messages; checking the user multicast information table of the user interface when multicast resources of the user interface are not sufficient, immediately terminating the multicast GSQ process and directly performing quick-leaving when the user multicast information table of a multicast group is empty, in conjunction with use of items of multicast state. The present invention can greatly enhance speed and performance of switching for multicast channels of the network access device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.