Methods and apparatus for minimizing duplicate traffic during point to multipoint tree switching in a network
US7899049B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Jul 6, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/502
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and computer program product for minimizing or preventing duplicate traffic during point to multipoint tree switching in a network. In its operation, embodiments disclosed herein utilize control plane trigger mechanisms to handle the receipt of duplicate traffic by network entities after the occurrence of a network failure event. Generally, the control plane trigger mechanism prevents a network entity from processing multicast traffic from both old and new upstream data paths resulting from typical network convergence procedures. The methods and apparatus describe herein apply to standard rerouting procedures as well as fast rerouting procedures for multicast traffic in a network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.