Provider link state bridging (PLSB) computation method
US8605627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Jan 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/66
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of multicast route computation in a link state protocol controlled network. A spanning tree is computed from a first node to every other node in the network using a known spanning tree protocol. The network is then divided into two or more partitions, each partition encompassing an immediate neighbor node of the first node and any nodes of the network subtending the neighbor node on the spanning tree. Two or more of the partitions are merged when a predetermined criterion is satisfied. Nodes within all of the partitions except a largest one of the partitions are then identified, and each identified node examined to identify node pairs for which a respective shortest path traverses the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.