Multicast Considerations over IEEE 802 Wireless Media
draft-ietf-mboned-ieee802-mcast-problems-03
Internet Area C. Perkins
Internet-Draft M. McBride
Intended status: Informational Futurewei
Expires: April 26, 2019 D. Stanley
HPE
W. Kumari
Google
JC. Zuniga
SIGFOX
October 23, 2018
Multicast Considerations over IEEE 802 Wireless Media
draft-ietf-mboned-ieee802-mcast-problems-03
Abstract
Well-known issues with multicast have prevented the deployment of
multicast in 802.11 [dot11], [mc-props], [mc-prob-stmt], and other
local-area wireless environments. IETF multicast experts have been
meeting together to discuss these issues and provide IEEE updates.
The mboned working group is chartered to receive regular reports on
the current state of the deployment of multicast technology, create
"practice and experience" documents that capture the experience of
those who have deployed and are deploying various multicast
technologies, and provide feedback to other relevant working groups.
This document offers guidance on known limitations and problems with
wireless multicast. Also described are various multicast enhancement
features that have been specified at IETF and IEEE 802 for wireless
media, as well as some operational chioces that can be taken to
improve the performace of the network. Finally, some recommendations
are provided about the usage and combination of these features and
operational choices.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
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Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
Perkins, et al. Expires April 26, 2019 [Page 1]
Internet-Draft Multicast Over IEEE 802 Wireless October 2018
This Internet-Draft will expire on April 26, 2019.
Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Identified mulitcast issues . . . . . . . . . . . . . . . . . 5
3.1. Issues at Layer 2 and Below . . . . . . . . . . . . . . . 5
3.1.1. Multicast reliability . . . . . . . . . . . . . . . . 5
3.1.2. Lower and Variable Data Rate . . . . . . . . . . . . 5
3.1.3. High Interference . . . . . . . . . . . . . . . . . . 6
3.1.4. Power-save Effects on Multicast . . . . . . . . . . . 6
3.2. Issues at Layer 3 and Above . . . . . . . . . . . . . . . 7
3.2.1. IPv4 issues . . . . . . . . . . . . . . . . . . . . . 7
3.2.2. IPv6 issues . . . . . . . . . . . . . . . . . . . . . 8
3.2.3. MLD issues . . . . . . . . . . . . . . . . . . . . . 8
3.2.4. Spurious Neighbor Discovery . . . . . . . . . . . . . 9
4. Multicast protocol optimizations . . . . . . . . . . . . . . 9
4.1. Proxy ARP in 802.11-2012 . . . . . . . . . . . . . . . . 10
4.2. IPv6 Address Registration and Proxy Neighbor Discovery . 10
4.3. Buffering to Improve Battery Life . . . . . . . . . . . . 12
4.4. IPv6 support in 802.11-2012 . . . . . . . . . . . . . . . 12
4.5. Conversion of multicast to unicast . . . . . . . . . . . 13
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