Partial software defined network switch replacement in IP networks
US10356011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2016 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | May 25, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/825
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The claimed subject matter is directed to novel methods and systems for a network topology wherein an Internet Protocol (IP) network is partially integrated and enhanced with a relatively small number of Software Defined Network (SDN)-Openflow (SDN-OF) enabled network devices to provide a resilient network that is able to quickly recover from a network failure and achieves post-recovery load balancing while minimizing cost and complexity. The SDN-OF Controller, or a management node, determines such a minimum set of SDN-OF enabled devices and establishes IP tunnels to route traffic from nodes affected by failure to designated SDN-OF switches and finally to the final destination without looping back to the failed link or node. By combining SDN-OF enabled switches with IP nodes such as routers, a novel network architecture and methods are described herein that allows for ultra-fast and load balancing-aware failure recovery of the data network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.