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RFC 6138: LDP IGP Synchronization for Broadcast Networks

In plain English — editorial summary, not part of the RFC

RFC 5443 describes a mechanism to achieve LDP IGP synchronization to prevent black-holing traffic (e.g., VPN) when an Interior Gateway Protocol (IGP) is operational on a link but Label Distribution Protocol (LDP) is not. If this mechanism is applied to broadcast links that have more than one LDP peer, the metric increase procedure can only be applied to the link as a whole but not to an individual peer. When a new LDP peer comes up on a broadcast network, this can result in loss of traffic through other established peers on that network. This document describes a mechanism to address that use-case without dropping traffic. The mechanism does not introduce any protocol message changes. This document is not an Internet Standards Track specification; it is published for informational purposes.

Document record

Document ID
RFC6138
Published
February 2011
Authors
S. Kini; W. Lu
Status
INFORMATIONAL
Stream
IETF
Area
rtg
Pages
9
Also known as
—
Updates:
RFC 5443

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/6138-ldp-igp-synchronization-for-broadcast-networks