LDP Specification

Document Type Expired Internet-Draft (mpls WG)
Authors Xia Chen  , Loa Andersson  , Nicolai Leymann  , Ina Minei  , Kamran Raza 
Last updated 2017-10-28 (latest revision 2017-04-26)
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Candidate for WG Adoption
Document shepherd Andy Malis
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to "Ross Callon" <rcallon@juniper.net>, "Andrew G. Malis" <agmalis@gmail.com>, loa@pi.nu

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The architecture for Multiprotocol Label Switching (MPLS) is described in RFC 3031. A fundamental concept in MPLS is that two Label Switching Routers (LSRs) must agree on the meaning of the labels used to forward traffic between and through them. This common understanding is achieved by using a set of procedures, called a label distribution protocol, by which one LSR informs another of label bindings it has made. This document defines a set of such procedures called LDP (for Label Distribution Protocol) by which LSRs distribute labels to support MPLS forwarding along normally routed paths.


Xia Chen (jescia.chenxia@huawei.com)
Loa Andersson (loa@pi.nu)
Nicolai Leymann (n.leymann@telekom.de)
Ina Minei (inaminei@google.com)
Kamran Raza (skraza@cisco.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)