Efficient protection scheme for MPLS multicast
US8634289B2 · kind B2 · utility
4Cited by
1References
20Claims
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Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jan 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A pair of Redundant Multicast Trees for each multicast connection connects the source of a multicast LSP to all its destinations in such a way that, in the event of a single link or node failure in the network, every destination node is still connected to the root node in at least one of the two trees. Furthermore, a method ensures that existing Redundant Multicast Trees can adapt to changes in the set of destination nodes and/or network topology changes without significant modifications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.