Efficient multicast topology construction in a routed network
US9712334B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Dec 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/48
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a layer-3 forwarding device. The layer-3 forwarding device includes a processor and a computer-readable storage medium. The computer-readable storage medium stores instructions which when executed by the processor cause the processor to perform a method. The method comprises determining whether the layer-3 forwarding device is a leaf layer-3 forwarding device of a multicast distribution tree of a multicast group in a routed network based on a multicast topology discovery message from a root layer-3 forwarding device of the multicast distribution tree. If the layer-3 forwarding device is the leaf layer-3 forwarding device, the method comprises constructing a multicast topology report message. This multicast topology report message includes topology information of the multicast group in the routed network associated with the layer-3 forwarding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.