Access network dual path connectivity
US10594512B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2017 |
| Grant date | Mar 17, 2020 |
| Priority date | — |
| Expiry date | Nov 1, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A transport network employs dual homing to an access network to provide connectivity from multiple network switches. Dual homing is a mechanism by which an access network employs pair of switches in the transport network as if it were connecting to a single device. Conventional arrangements for defining multiple paths from a transport network to an access network suffer from the shortcomings of potential routing loops, increased hops to the access network, and inability or inconsistency with forwarding to different types of access networks, and may involve redirecting traffic absent faults in the access network. The dual homed network switches identify the type of access network and perform switching logic corresponding to the access network type to provide comprehensive dual-homed support to the access network independently of the type of transport employed in the access network, and employ redirection only if there is a fault in the access network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.