System and method to improve the resiliency and performance of enterprise networks by utilizing in-built network redundancy
US7188189B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2003 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention is a system and method to improve the reliability and performance of existing enterprise IP networks which have dual-homed (or multi-homed) network architectures. In one aspect of the invention packets related to a selected category of transmission (e.g., VoIP) are duplicated at an edge router and sent over both (multiple) service providers. After traversing the service provider networks, only the first-to-arrive packets are kept and the later-arriving copies are discarded. In so doing, the result is better protection against node failures, link failures, and packet errors, and also better QoS performance under normal (fault-free) operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.