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RFC 8223
Title: Application-Aware Targeted LDP
Author: S. Esale,
R. Torvi,
L. Jalil,
U. Chunduri,
K. Raza
Status: Standards Track
Stream: IETF
Date: August 2017
Mailbox: sesale@juniper.net,
rtorvi@juniper.net,
luay.jalil@verizon.com,
uma.chunduri@huawei.com,
skraza@cisco.com
Pages: 18
Characters: 41798
Updates: RFC 7473
I-D Tag: draft-ietf-mpls-app-aware-tldp-09.txt
URL: https://www.rfc-editor.org/info/rfc8223
DOI: 10.17487/RFC8223
Recent Targeted Label Distribution Protocol (tLDP) applications, such
as remote Loop-Free Alternates (LFAs) and BGP auto-discovered
pseudowires, may automatically establish a tLDP session with any Label
Switching Router (LSR) in a network. The initiating LSR has
information about the targeted applications to administratively
control initiation of the session. However, the responding LSR has no
such information to control acceptance of this session. This document
defines a mechanism to advertise and negotiate the Targeted
Application Capability (TAC) during LDP session initialization. As
the responding LSR becomes aware of targeted applications, it may
establish a limited number of tLDP sessions for certain applications.
In addition, each targeted application is mapped to LDP Forwarding
Equivalence Class (FEC) elements to advertise only necessary LDP
FEC label bindings over the session. This document updates RFC 7473
for enabling advertisement of LDP FEC label bindings over the session.
This document is a product of the Multiprotocol Label Switching Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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