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RFC 7140
Title: LDP Extensions for Hub and
Spoke Multipoint Label Switched Path
Author: L. Jin, F. Jounay,
IJ. Wijnands, N. Leymann
Status: Standards Track
Stream: IETF
Date: March 2014
Mailbox: lizho.jin@gmail.com,
frederic.jounay@orange.ch,
ice@cisco.com, n.leymann@telekom.de
Pages: 15
Characters: 33570
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-mpls-mldp-hsmp-06.txt
URL: http://www.rfc-editor.org/rfc/rfc7140.txt
This document introduces a hub and spoke multipoint (HSMP) Label
Switched Path (LSP), which allows traffic from root to leaf through
point-to-multipoint (P2MP) LSPs and also leaf to root along the
reverse path. That means traffic entering the HSMP LSP from the
application/customer at the root node travels downstream to each leaf
node, exactly as if it were traveling downstream along a P2MP LSP to
each leaf node. Upstream traffic entering the HSMP LSP at any leaf
node travels upstream along the tree to the root, as if it were
unicast to the root. Direct communication among the leaf nodes is
not allowed.
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 Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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