In-band multicast signaling using LDP
US7852841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2005 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | Mar 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mechanism is provided by which a transport tree identifier can be generated using one or more identifiers for a multicast datastream. The transport tree identifier can then be used in the process of building a transport tree across a transport network. A transport network egress router can receive a request to join a multicast datastream from a downstream node outside of the transport network. The information contained in the join message that identifies the desired multicast datastream can be encoded in the transport tree identifier. The transport tree identifier can be related to one or more of a multicast group destination address, a multicast datastream source address, and a broadcast domain identifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.