Multicast packet relay device adapted for virtual router
US7751394B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2005 |
| Grant date | Jul 6, 2010 |
| Priority date | — |
| Expiry date | Apr 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to solve a problem that when multicast is utilized in a network configured with virtual routers, traffic in the relay network is increased. According to the present invention, the number of multicast packets via the relay network is reduced by performing a multicast packet transfer across the virtual routers within the same router. Specifically, it is allowed to register in a multicast routing table held by each virtual router, a line interface identifier of another virtual router as outgoing line interface information, whereby multicast packet transfer from a virtual router to another virtual router is made possible. In order to specify a virtual router to share the multicast packet, each virtual router holds information to specify a virtual router having a line interface to receive the multicast traffic indicated by the multicast group address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.