Multipoint LDP in-band signaling for Point-to-Multipoint and Multipoint- to-Multipoint Label Switched Paths

The information below is for an old version of the document
Document Type Expired Internet-Draft (mpls WG)
Authors IJsbrand Wijnands  , Toerless Eckert  , Nicolai Leymann  , Maria Napierala 
Last updated 2012-06-03 (latest revision 2011-12-01)
Replaces draft-wijnands-mpls-mldp-in-band-signaling
Stream Internet Engineering Task Force (IETF)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Consider an IP multicast tree, constructed by Protocol Independent Multicast (PIM), needs to pass through an MPLS domain in which Multipoint LDP (mLDP) Point-to-Multipoint and/or Multipoint-to- Multipoint Labels Switched Paths (LSPs) can be created. The part of the IP multicast tree that traverses the MPLS domain can be instantiated as a multipoint LSP. When a PIM Join message is received at the border of the MPLS domain, information from that message is encoded into mLDP messages. When the mLDP messages reach the border of the next IP domain, the encoded information is used to generate PIM messages that can be sent through the IP domain. The result is an IP multicast tree consisting of a set of IP multicast sub-trees that are spliced together with a multipoint LSP.


IJsbrand Wijnands (
Toerless Eckert (
Nicolai Leymann (
Maria Napierala (

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