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IETF RFC 4271
[ACTIVE]

A Border Gateway Protocol 4 (BGP-4)

Metadata

Publisher
IETF
Doc Type
Standard
Pages
104
Abstract
This document discusses the Border Gateway Protocol (BGP), which is an inter-Autonomous System routing protocol. The primary function of a BGP speaking system is to exchange network reachability information with other BGP systems. This network reachability information includes information on the list of Autonomous Systems (ASes) that reachability information traverses. This information is sufficient for constructing a graph of AS connectivity for this reachability from which routing loops may be pruned, and, at the AS level, some policy decisions may be enforced. BGP-4 provides a set of mechanisms for supporting Classless Inter-Domain Routing (CIDR). These mechanisms include support for advertising a set of destinations as an IP prefix, and eliminating the concept of network "class" within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including aggregation of AS paths. This document obsoletes RFC 1771. [STANDARDS-TRACK]
Publication Date
2006-01-01
Status Note
Draft Standard
DOI
10.17487/RFC4271
Link
https://doi.org/10.17487/RFC4271
Author(s)
Yakov Rekhter
Tony Li
Susan Hares
Keyword(s)
BGP-4, Routing
Latest version of IETF RFC 4271

Document Versions — IETF RFC 4271

  • ▶ IETF RFC 4271 (2006-01-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Amended by:
  • RFC4724 NOT IN REGISTRY
  • RFC6286 NOT IN REGISTRY
  • RFC6608 NOT IN REGISTRY
  • IETF RFC 6793 [Active*]
  • RFC7606 — RFC7606 EXTERNAL
  • RFC7607 NOT IN REGISTRY
  • RFC7705 NOT IN REGISTRY
  • RFC8212 NOT IN REGISTRY
  • RFC8654 NOT IN REGISTRY
  • RFC9072 NOT IN REGISTRY
  • RFC9687 NOT IN REGISTRY
  • RFC9774 NOT IN REGISTRY

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IETF RFC 4271, A Border Gateway Protocol 4 (BGP-4). Available at https://doi.org/10.17487/RFC4271
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IETF RFC 4271, A Border Gateway Protocol 4 (BGP-4). Available at https://doi.org/10.17487/RFC4271

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IETF RFC 4271, A Border Gateway Protocol 4 (BGP-4). Available at https://doi.org/10.17487/RFC4271
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<span class="citation"><cite>IETF RFC 4271</cite>, A Border Gateway Protocol 4 (BGP-4). Available at <a href="https://doi.org/10.17487/RFC4271" target="_blank" rel="noopener">https://doi.org/10.17487/RFC4271</a></span>

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IETF RFC 4271, A Border Gateway Protocol 4 (BGP-4)
doi: 10.17487/RFC4271
url: https://doi.org/10.17487/RFC4271
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<cite id="bib-rfc4271">IETF RFC 4271</cite>, A Border Gateway Protocol 4 (BGP-4)
<span class="doi">10.17487/RFC4271</span>
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