Point-to-multipoint for multicast and unicast forwarding
US7792111B2 · kind B2 · utility
5Cited by
1References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2008 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Sep 27, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for establishing multicast and unicast forwarding are disclosed. In one embodiment, a method includes transmitting path messages to a plurality of receivers, receiving a plurality of messages in response to the path messages and establishing unicast and multicast forwarding based on received unicast and multicast labels. Each of the receivers is associated with a sub-LSP (Label Switched Path) in a Point-to-Multipoint (P2MP) LSP and the response messages include a multicast label and at least one unicast label corresponding to a unicast path to one of the receivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.