[rfc-dist] RFC 5038 on The Label Distribution Protocol (LDP) Implementation Survey Results

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        RFC 5038

        Title:      The Label Distribution Protocol (LDP) 
                    Implementation Survey Results 
        Author:     B. Thomas, L. Andersson
        Status:     Informational
        Date:       October 2007
        Mailbox:    rhthomas at cisco.com, loa at pi.se
        Pages:      23
        Characters: 46890
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-mpls-ldp-survey2002-00.txt

        URL:        http://www.rfc-editor.org/rfc/rfc5038.txt

Multiprotocol Label Switching (MPLS), described in RFC 3031, is a
method for forwarding packets that uses short, fixed-length values
carried by packets, called labels, to determine packet next hops.  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 (as described in RFC 3036) , by which one LSR informs another
of label bindings it has made.  One such protocol, called LDP, is used
by LSRs to distribute labels to support MPLS forwarding along normally
routed paths.  This document reports on a survey of LDP implementations
conducted in August 2002 as part of the process of advancing LDP from
Proposed to Draft Standard.  This memo provides information for the 
Internet community.

This document is a product of the Multiprotocol Label Switching
Working Group of the IETF.


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