Multicast operations using prioritized state information
US8018964B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2005 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Jul 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/308
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A classification mechanism to allow selected classes of multicast entries to be acted upon in a chosen order of priority during multicast distribution tree convergence is provided. Such prioritization allows for the designation of customers, networks or multicast groups to receive faster convergence of multicast distribution trees to modified multicast distribution trees in response to unavailability of an upstream router, and in performing other multicast-related tasks (e.g., PIM joins and prunes). One aspect of the present invention provides for multicast entries (also called multicast states) that are at a same priority level to be acted upon in a fair manner, thereby avoiding having certain multicast entries and their associated users from being acted upon consistently last.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.