A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Layer 3 Virtual Private Networks Working
Group of the IETF.
Title : Multipoint Label Distribution Protocol In-Band
Signaling in a VRF Context
Authors : IJsbrand Wijnands
Paul Hitchen
Nicolai Leymann
Wim Henderickx
Arkadiy Gulko
Jeff Tantsura
Filename : draft-ietf-l3vpn-mldp-vrf-in-band-signaling-03.txt
Pages : 13
Date : 2014-01-17
Abstract:
An IP Multicast Distribution Tree (MDT) may traverse both label
switching (i.e. - Multi-Protocol Label Switching, or MPLS) and non-
label switching regions of a network. Typically the MDT begins and
ends in non-MPLS regions, but travels through an MPLS region. In
such cases, it can be useful to begin building the MDT as a pure IP
MDT, then convert it to an MPLS Multipoint Label Switched Path (MP-
LSP) when it enters an MPLS-enabled region, and then convert it back
to a pure IP MDT when it enters a non-MPLS-enabled region. Other
documents specify the procedures for building such a hybrid MDT,
using Protocol Independent Multicast (PIM) in the non-MPLS region of
the network, and using Multipoint Extensions to Label Distribution
Protocol (mLDP) in the MPLS region. This document extends those
procedures to handle the case where the link connecting the two
regions is a "Virtual Routing and Forwarding Table" (VRF) link, as
defined in the "BGP IP/MPLS VPN" specifications. However, this
document is primarily aimed at particular use cases where VRFs are
used to support multicast applications other than Multicast VPN.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-l3vpn-mldp-vrf-in-band-signaling/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-l3vpn-mldp-vrf-in-band-signaling-03
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-l3vpn-mldp-vrf-in-band-signaling-03
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