Application Layer Multicast Extensions to RELOAD
draft-irtf-samrg-sam-baseline-protocol-00

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SAM Research Group                                             J. Buford
Internet-Draft                                       Avaya Labs Research
Intended status: Informational                           M. Kolberg, Ed.
Expires: February 6, 2013                         University of Stirling
                                                         August 05, 2012

            Application Layer Multicast Extensions to RELOAD
               draft-irtf-samrg-sam-baseline-protocol-00

Abstract

   We define a RELOAD Usage for Application Layer Multicast as well as
   extensions to RELOAD message layer to support ALM.  The ALM Usage is
   intended to support a variety of ALM control algorithms in an
   overlay-independent way.  Scribe is defined as an example algorithm.

Status of this Memo

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Copyright Notice

   Copyright (c) 2012 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Buford & Kolberg        Expires February 6, 2013                [Page 1]
Internet-Draft          ALM Extensions to RELOAD             August 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Requirements Language  . . . . . . . . . . . . . . . . . .  4
   2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  5
     2.1.  Overlay Network  . . . . . . . . . . . . . . . . . . . . .  5
     2.2.  Overlay Multicast  . . . . . . . . . . . . . . . . . . . .  5
     2.3.  Peer . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Assumptions  . . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.1.  Overlay  . . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.2.  Overlay Multicast  . . . . . . . . . . . . . . . . . . . .  6
     3.3.  RELOAD . . . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.4.  NAT  . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
     3.5.  Tree Topology  . . . . . . . . . . . . . . . . . . . . . .  7
   4.  Architecture Extensions to RELOAD  . . . . . . . . . . . . . .  7
   5.  RELOAD ALM Usage . . . . . . . . . . . . . . . . . . . . . . .  9
   6.  ALM Tree Control Signaling . . . . . . . . . . . . . . . . . .  9
   7.  ALM Messages Added to RELOAD Protocol  . . . . . . . . . . . . 11
     7.1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . 11
     7.2.  Tree Lifecycle Messages  . . . . . . . . . . . . . . . . . 12
       7.2.1.  Create Tree  . . . . . . . . . . . . . . . . . . . . . 12
       7.2.2.  Join . . . . . . . . . . . . . . . . . . . . . . . . . 13
       7.2.3.  Join Accept  . . . . . . . . . . . . . . . . . . . . . 13
       7.2.4.  Join Confirm . . . . . . . . . . . . . . . . . . . . . 14
       7.2.5.  Join Decline . . . . . . . . . . . . . . . . . . . . . 14
       7.2.6.  Leave  . . . . . . . . . . . . . . . . . . . . . . . . 14
       7.2.7.  Re-Form or Optimize Tree . . . . . . . . . . . . . . . 15
       7.2.8.  Heartbeat  . . . . . . . . . . . . . . . . . . . . . . 15
   8.  Scribe Algorithm . . . . . . . . . . . . . . . . . . . . . . . 16
     8.1.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . 16
     8.2.  Create . . . . . . . . . . . . . . . . . . . . . . . . . . 17
     8.3.  Join . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
     8.4.  Leave  . . . . . . . . . . . . . . . . . . . . . . . . . . 18
     8.5.  JoinConfirm  . . . . . . . . . . . . . . . . . . . . . . . 18
     8.6.  JoinDecline  . . . . . . . . . . . . . . . . . . . . . . . 19
     8.7.  Multicast  . . . . . . . . . . . . . . . . . . . . . . . . 19
   9.  P2PCast Algorithm  . . . . . . . . . . . . . . . . . . . . . . 19
     9.1.  Overview . . . . . . . . . . . . . . . . . . . . . . . . . 19
     9.2.  Create . . . . . . . . . . . . . . . . . . . . . . . . . . 20
     9.3.  Join . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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