Techniques for one-way synchronization of routing information among intermediate nodes
US7768995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Aug 6, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/021
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for synchronizing routing data include determining whether conditions are satisfied for one-way transfer with an adjacent router. If it is determined that conditions are satisfied for one-way transfer of routing table data with the adjacent router, then a refresh-notice message is sent from the initiating router to the adjacent router. The refresh-notice message includes data that indicates a particular direction for transfer of routing table data. If the particular direction is inbound, then a copy of an adjacent routing table is received without sending a copy of the initiating router's own routing table. If the particular direction is outbound, then a copy of the own routing table is sent without receiving a copy of the adjacent routing table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.