A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Extended RSVP-TE for Point-to-Multipoint LSP Tunnels
Author(s) : S. Yasukawa, A. Kullberg
Filename : draft-yasukawa-mpls-rsvp-p2mp-00.txt
Pages : 0
Date : 2003-1-21
Point-to-multipoint (P2MP) technology will become increasingly
important with the dissemination of new, real-time applications,
such as content delivery services and video conferences, which
require P2MP real-time transmission capability with much more
bandwidth and stricter QoS than non-real-time applications.
This document defines some protocol extensions to the existing RSVP-
TE[1] in order to establish, maintain, and teardown a P2MP label
switched path (LSP). The use of label switching routers (LSRs) with
the protocol extensions defined in this document allows service
providers to offer services that utilize point-to-point (P2P) and/or
P2MP multiprotocol label switching (MPLS) in the same service
network.
These RSVP-TE protocol extensions define two ways of constructing a
P2MP LSP: sender-initiated LSP setup and leaf-initiated LSP setup.
Each method has an LSP modification capability in order to adapt to
dynamic changes in the LSP tree topology.
The establishment of multipoint-to-multipoint LSPs is a subject for
future study.
These RSVP-TE protocol extensions are very flexible and can be used
to carry protocols other than IP multicasting, e.g., Ethernet, PPP,
and SONET/SDH. No assumption is made about the format of the data to
be carried in the signaled LSP.
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