Method for pruning a multicast branch, protocol independent multicast router, and layer-2 exchange
US9497034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Feb 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/15
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to an example, a multicast source may be connected to a first hop Protocol Independent Multicast (PIM) router via one or multiple layer-2 switches that has PIM functions. A first hop PIM router may receive a multicast flow initiated by the multicast source, send a PIM prune message via a port from which the multicast flow is received in response to a determination that the multicast flow is not to be received, or the first hop PIM router may receive a PIM prune message for a multicast flow from a downstream PIM router or a multicast group leave message for a multicast flow from a client connected to the first hop PIM router and delete a port via which the PIM prune message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.