Attribute set—ID in border gateway protocol
US9843498B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2015 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Jul 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/668
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Present disclosure relates to methods for preparing BGP update messages for transmission and processing received update messages. The methods are based on grouping path attributes common to a plurality of IP address prefixes into respective sets identified with respective set identifiers and, instead of duplicating path attributes in each BGP update message, including a respective identifier referring to a certain set of path attributes provided in an earlier BGP update message when sending subsequent update messages. Grouping of path attributes into individual sets associated with respective identifiers provides significant advantages by enabling re-use of the results of previous processing on both the sending and receiving sides associated with transmission of BGP update messages. In addition, such an approach limits the amount of information transmitted in the control plane because duplicate sets of path attributes may only be transmitted once and merely be referred to in subsequent update messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.