Distribution of Diverse BGP Paths
Metadata
- Publisher
- IETF
- Doc Type
- Informational
- Pages
- 22
- Abstract
- The BGP4 protocol specifies the selection and propagation of a single best path for each prefix. As defined and widely deployed today, BGP has no mechanisms to distribute alternate paths that are not considered best path between its speakers. This behavior results in a number of disadvantages for new applications and services. The main objective of this document is to observe that by simply adding a new session between a route reflector and its client, the Nth best path can be distributed. This document also compares existing solutions and proposed ideas that enable distribution of more paths than just the best path. This proposal does not specify any changes to the BGP protocol definition. It does not require a software upgrade of provider edge (PE) routers acting as route reflector clients. This document is not an Internet Standards Track specification; it is published for informational purposes.
- Publication Date
- 2012-11-01
- Status Note
- Informational
- DOI
10.17487/RFC6774- Link
- https://doi.org/10.17487/RFC6774
- Author(s)
- Robert RaszukRex FernandoKeyur PatelDanny R. McPhersonKenji Kumaki
Latest version of IETF RFC 6774
Document Versions — IETF RFC 6774
-
▶ IETF RFC 6774 (2012-11-01)THIS DOC [ACTIVE] [LATEST VERSION]
Normative Reference(s)
- IETF RFC 4271 [Active*]
- IETF RFC 4456 [Active*]
- IETF RFC 4760 [Active*]
- IETF RFC 5226 [Superseded*]
Bibliographic Reference(s)
- Walton, D., Chen, E., Retana, A., and J. Scudder, "Advertisement of Multiple Paths in BGP", Work in Progress, June 2012. EXTERNAL
- Raszuk, R., "IBGP Auto Mesh" , Work in Progress, January 2004. EXTERNAL
- Marques, P., Fernando, R., Chen, E., Mohapatra, P., and H. Gredler, "Advertisement of the Best External Route in BGP", Work in Progress, January 2012. EXTERNAL
- Decraene, B., Francois, P., Pelsser, C., Ahmad, Z., and A. Armengol, "Requirements for the Graceful Shutdown of BGP Sessions", Work in Progress, September 2009. EXTERNAL
- Mohapatra, P., Fernando, R., Filsfils, C., and R. Raszuk, "Fast Connectivity Restoration Using BGP Add-path", Work in Progress), October 2011. EXTERNAL
- IETF RFC 3345 [Active*]
- IETF RFC 4272 [Active*]
- IETF RFC 5065 [Active*]
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IETF RFC 6774, Distribution of Diverse BGP Paths. Available at https://doi.org/10.17487/RFC6774
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IETF RFC 6774, Distribution of Diverse BGP Paths. Available at https://doi.org/10.17487/RFC6774
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IETF RFC 6774, Distribution of Diverse BGP Paths. Available at https://doi.org/10.17487/RFC6774
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<span class="citation"><cite>IETF RFC 6774</cite>, Distribution of Diverse BGP Paths. Available at <a href="https://doi.org/10.17487/RFC6774" target="_blank" rel="noopener">https://doi.org/10.17487/RFC6774</a></span>
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IETF RFC 6774, Distribution of Diverse BGP Paths
doi: 10.17487/RFC6774
url: https://doi.org/10.17487/RFC6774
doi: 10.17487/RFC6774
url: https://doi.org/10.17487/RFC6774
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<li> <cite id="bib-rfc6774">IETF RFC 6774</cite>, Distribution of Diverse BGP Paths <span class="doi">10.17487/RFC6774</span> </li>
Referenced By
- IETF RFC 7938 [Active*]
- IETF RFC 7947 [Active*]