PMIPv6 multicast handover optimization by the Subscription Information Acquisition through the LMA (SIAL)
draft-ietf-multimob-handover-optimization-00
MULTIMOB Working Group LM. Contreras
Internet-Draft Telefonica I+D
Intended status: Experimental CJ. Bernardos
Expires: June 1, 2013 I. Soto
UC3M
November 28, 2012
PMIPv6 multicast handover optimization by the Subscription Information
Acquisition through the LMA (SIAL)
draft-ietf-multimob-handover-optimization-00
Abstract
This document specifies a multicast handover optimization mechanism
for Proxy Mobile IPv6 to accelerate the delivery of multicast traffic
to mobile nodes after handovers. The mechanism is based on speeding
up the acquisition of mobile nodes' multicast context by the mobile
access gateways. To do that, extensions to the current Proxy Mobile
IPv6 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 being developed to avoid
the tunnel convergence problem. Furthermore, they are also
independent of the role played by the mobile access gateway within
the multicast network (either acting as multicast listener discovery
proxy or multicast router).
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on June 1, 2013.
Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
Contreras, et al. Expires June 1, 2013 [Page 1]
Internet-Draft PMIPv6 multicast handover optimization November 2012
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. PMIPv6 extensions . . . . . . . . . . . . . . . . . . . . . . 8
4.1. New mobility option . . . . . . . . . . . . . . . . . . . 8
4.1.1. Active Multicast Subscription mobility option . . . . 8
4.1.1.1. Option application rules . . . . . . . . . . . . . 8
4.1.1.2. Option format . . . . . . . . . . . . . . . . . . 8
4.2. New flags . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2.1. Multicast Signaling flag on PBU/PBA message headers . 9
4.2.1.1. Flag application rules . . . . . . . . . . . . . . 9
4.2.1.1.1. Registration process . . . . . . . . . . . . . 9
4.2.1.1.2. De-registration process . . . . . . . . . . . 10
4.2.1.2. New format of conventional PBU/PBA messages . . . 11
4.2.1.2.1. Proxy Binding Update message . . . . . . . . . 11
4.2.1.2.2. Proxy Binding Acknowledgement Message . . . . 11
4.2.2. Multicast Active flag in the LMA Binding Cache and
(optionally) on the MN's policy store . . . . . . . . 11
4.2.2.1. Flag application rules . . . . . . . . . . . . . . 11
4.3. New messages . . . . . . . . . . . . . . . . . . . . . . . 12
4.3.1. Messages for active multicast subscription
interrogation . . . . . . . . . . . . . . . . . . . . 12
4.3.1.1. Subscription Query message . . . . . . . . . . . . 13
4.3.1.1.1. Message application rules . . . . . . . . . . 13
4.3.1.1.2. Message format . . . . . . . . . . . . . . . . 13
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