Method and apparatus for providing redundant protocol processes in a network element
US7406035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Feb 9, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/40
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for facilitating an activity switch between a plurality of redundant routing modules in a network element is disclosed. Lower layer protocol packets, each encapsulating a higher layer protocol packet, are received at a lower layer task of a first routing module. The method first determines a peer network element In response to failure of a higher layer protocol task of the first routing module. The higher layer and lower layer protocol sessions between a second routing module and the peer network element are terminated following the determination of the peer network element, wherein the second routing module functions as a backup of the first routing module. The method then initiates a switchover from the first routing module to the second routing module of the network element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.