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Proxy Mobile IPv6 (PMIPv6) Multicast Handover Optimization by the Subscription Information Acquisition through the LMA (SIAL) (RFC7161) Disclosure Number: IPCOM000235967D
Original Publication Date: 2014-Mar-01
Included in the Prior Art Database: 2014-Apr-01
Document File: 74 page(s) / 86K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

LM. Contreras: AUTHOR [+2]


The base solution for providing continuous multicast service delivery in Proxy Mobile IPv6 (PMIPv6) domains is described in [RFC6224]. It specifies the basic functionality needed in the Proxy Mobile IPv6 [RFC5213] entities to provide a multicast service, so continuous delivery of multicast traffic is supported by obtaining, after each handover, the ongoing multicast subscription information directly from the Mobile Node (MN). When a mobile node attaches to a new Mobile Access Gateway (MAG), the mobile node is queried by the mobile access gateway through a Multicast Listener Discovery (MLD) General Query, which is sent just after any new link is set up, to learn of any existing subscription, as specified in [RFC2710] and [RFC3810].

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Internet Engineering Task Force (IETF)                     LM. Contreras Request for Comments: 7161                                Telefonica I+D Category: Experimental                                     CJ. Bernardos ISSN: 2070-1721                                                  I. Soto                                                                     UC3M                                                               March 2014

        Proxy Mobile IPv6 (PMIPv6) Multicast Handover Optimization    by the Subscription Information Acquisition through the LMA (SIAL)


   This document specifies an experimental multicast handover    optimization mechanism for Proxy Mobile IPv6 (PMIPv6) to accelerate    the delivery of multicast traffic to mobile nodes after handovers.    The mechanism, called Subscription Information Acquisition through    the LMA (SIAL), is based on speeding up the acquisition of mobile    nodes' multicast context by the mobile access gateways.  To do that,    extensions to the current PMIPv6 protocol are proposed.  These    extensions are not only applicable to the base solution for multicast    support in Proxy Mobile IPv6, but they can also be applied to other    solutions developed to avoid the tunnel convergence problem.    Furthermore, these extensions are also independent of the role played    by the mobile access gateway within the multicast network (acting as    either multicast listener discovery proxy or multicast router).

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for examination, experimental implementation, and    evaluation.

   This document defines an Experimental Protocol for the Internet    community.  This document is a product of the Internet Engineering    Task Force (IETF).  It represents the consensus of the IETF    community.  It has received public review and has been approved for    publication by the Internet Engineering Steering Group (IESG).  Not    all documents approved by the IESG are a candidate for any level of    Internet Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Contreras, et al.             Experimental                      [Page 1]
 RFC 7161         PMIPv6 Multicast Handover Optimization       March 2014

 Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is su...