System and method for increasing optimal alternative network route convergence speed and border gateway router incorporating the same
US8150998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2003 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Jun 22, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/033
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
For use with a path vector routing protocol, a system and method for increasing alternative network route convergence speed and a border gateway router incorporating the system or the method. In one embodiment, the system includes: (1) a router information base (RIB) data receiver, associated with a network, that receives RIB data including: (1a) an update of an active route to a domain in the network that causes the active route to become a withdrawn route and (1b) indications, based on loopback addresses associated with nodes through which the withdrawn route passed, of a reachability of the each of the nodes and (2) route disqualification logic, associated with the RIB data receiver, that disqualifies alternative routes to the domain based on the indications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.