System and method for distributing route selection in an implementation of a routing protocol
US7023808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Feb 7, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/44
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A partial best path technique distributes route selection in a routing protocol implementation on a router. The technique also ensures that announced paths received from peers of the router (i.e., a “load”) are compared in a correct order to select best paths that are then used by the router to forward packets and to advertise to the peers. When employed in a distributed architecture, the technique further reduces memory usage. To that end, the partial best path technique enhances a best path selection algorithm executed by the router to enable dispersion of the received path load among processing nodes or elements of the router, while maintaining the ordering requirement of the algorithm. The partial best path technique essentially provides an enhancement to the best path selection algorithm that selects a subset of paths from a plurality of paths, with that subset being the minimal subset needed to select the best paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.