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IETF RFC 5443
[ACTIVE]

LDP IGP Synchronization

Metadata

Publisher
IETF
Doc Type
Informational
Pages
7
Abstract
In certain networks, there is dependency on the edge-to-edge Label Switched Paths (LSPs) setup by the Label Distribution Protocol (LDP), e.g., networks that are used for Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) applications. For such applications, it is not possible to rely on Internet Protocol (IP) forwarding if the MPLS LSP is not operating appropriately. Blackholing of labeled traffic can occur in situations where the Interior Gateway Protocol (IGP) is operational on a link on which LDP is not. While the link could still be used for IP forwarding, it is not useful for MPLS forwarding, for example, MPLS VPN applications or Border Gateway Protocol (BGP) route-free cores. This document describes a mechanism to avoid traffic loss due to this condition without introducing any protocol changes. This memo provides information for the Internet community.
Publication Date
2009-03-01
Status Note
Informational
DOI
10.17487/RFC5443
Link
https://doi.org/10.17487/RFC5443
Author(s)
Markus Jork
Alia Atlas
Luyuan Fang
Keyword(s)
LDP, IGP
Latest version of IETF RFC 5443

Document Versions — IETF RFC 5443

  • ▶ IETF RFC 5443 (2009-03-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

Bibliographic Reference(s)

  • ISO.10589.1992 — 1 EXTERNAL
  • Fang, L., Atlas, A., Chiussi, F., Kompella, K., and G. Swallow, "LDP Failure Detection and Recovery", IEEE Communications Magazine, Vol.42, No.10, October 2004. EXTERNAL
  • Asati, R., LDP End-of-LIB, Work in Progress, January 2009. EXTERNAL
  • Fang. L., Ed., "Security Framework for MPLS and GMPLS Networks", Work in Progress, November 2008. EXTERNAL
  • IETF RFC 3137 [Superseded*]
  • IETF RFC 5305 [Active*]
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Amended by:
RFC6138 NOT IN REGISTRY
RFC10041 NOT IN REGISTRY

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IETF RFC 5443, LDP IGP Synchronization. Available at https://doi.org/10.17487/RFC5443
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IETF RFC 5443, LDP IGP Synchronization. Available at https://doi.org/10.17487/RFC5443

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IETF RFC 5443, LDP IGP Synchronization. Available at https://doi.org/10.17487/RFC5443
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<span class="citation"><cite>IETF RFC 5443</cite>, LDP IGP Synchronization. Available at <a href="https://doi.org/10.17487/RFC5443" target="_blank" rel="noopener">https://doi.org/10.17487/RFC5443</a></span>

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IETF RFC 5443, LDP IGP Synchronization
doi: 10.17487/RFC5443
url: https://doi.org/10.17487/RFC5443
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<cite id="bib-rfc5443">IETF RFC 5443</cite>, LDP IGP Synchronization
<span class="doi">10.17487/RFC5443</span>
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