Multimob Working Group H. Liu
Internet-Draft
Intended status: Informational M. McBride
Expires: August 26, 2013 Huawei Technologies
H. Asaeda
NICT
February 22, 2013
IGMP/MLD Optimizations in Wireless and Mobile Networks
draft-liu-multimob-igmp-mld-wireless-mobile-03
Abstract
This document proposes a variety of optimization approaches for IGMP
and MLD in wireless and mobile networks. It aims to provide useful
guidelines to allow efficient multicast communication in these
networks using IGMP or MLD protocols.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
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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This Internet-Draft will expire on August 26, 2013.
Copyright Notice
Copyright (c) 2013 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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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1. Characteristics of Wireless and Mobile Multicast . . . . . 3
2.2. Wireless Link Model . . . . . . . . . . . . . . . . . . . 4
2.3. Requirements on IGMP and MLD . . . . . . . . . . . . . . . 5
3. IGMP/MLD Optimization for Wireless and Mobile Networks . . . . 6
3.1. Switching Between Unicast and Multicast Queries . . . . . 6
3.2. General Query Supplemented with Unicast Query . . . . . . 6
3.3. Retransmission of Queries . . . . . . . . . . . . . . . . 7
3.4. General Query Suppression . . . . . . . . . . . . . . . . 7
3.5. Tuning Response Delay According to Link Type and Status . 8
3.6. Triggering Reports and Queries Quickly During Handover . . 9
4. Applicability and Interoperability Considerations . . . . . . 9
5. IGMP/MLD Suspend and Resume . . . . . . . . . . . . . . . . . 10
5.1. IGMP/MLD Suspend Request . . . . . . . . . . . . . . . . . 10
5.2. IGMP/MLD Resume Request . . . . . . . . . . . . . . . . . 10
5.3. IGMP/MLD Suspend Reception . . . . . . . . . . . . . . . . 10
5.4. IGMP/MLD Resume Reception . . . . . . . . . . . . . . . . 11
6. Timers, Counters, and Their Default Values . . . . . . . . . . 12
6.1. IGMP/MLD Suspend Interval Timer . . . . . . . . . . . . . 12
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
8. Security Considerations . . . . . . . . . . . . . . . . . . . 12
9. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 12
10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13
10.1. Normative References . . . . . . . . . . . . . . . . . . . 13
10.2. Informative References . . . . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 15
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1. Introduction
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