[802.15_GENERAL] [New-work] WG Review: Routing Over Low power and Lossy networks (roll)
The following new work announcement from the IETF may be of
interest to your WG members.
-----Original Message-----
From: IESG Secretary
[mailto:iesg-secretary@ietf.org]
Sent: Tuesday, January 15, 2008 1:15 PM
To: new-work@ietf.org
Subject: [New-work] WG Review: Routing Over Low power and Lossy networks
(roll)
A new IETF working group has been proposed in the Routing Area.
The IESG has not made any determination as yet. The following draft
charter was submitted, and is provided for informational purposes
only.
Please send your comments to the IESG mailing list (iesg@ietf.org) by
January 22nd.
+++
Routing Over Low power and Lossy networks (roll)
==================================================
Current Status: Proposed Working Group
Chairs:
TBD
Routing Area Director(s):
Ross Callon <rcallon@juniper.net>
David Ward <dward@cisco.com>
Description of Working Group
Low power and Lossy networks (LLNs) are typically composed of many
embedded devices with limited power, memory, and processing resources
interconnected by a variety of links, such as IEEE 802.15.4, Bluetooth,
Low Power WiFi. LLNs are transitioning to an end-to-end IP-based solution
to avoid the problem of non-interoperable networks interconnected by
protocol translation gateways and proxies. In addition, LLNs have
specific
routing requirements that may not be met by existing routing protocols,
such as OSPF, IS-IS, AODV and OLSR. For example path selection must be
designed to take into consideration the specific power capabilities,
attributes and functional characteristics of the links and nodes in the
network.
There is a wide scope of application areas for LLNs, including
industrial
monitoring, building automation (HVAC, lighting, access control, fire),
connected home, healthcare, environmental monitoring, urban sensor
networks sensor networks, assets tracking, refrigeration. The Working
Group will only focus on routing solutions for a subset of these. It will
focus on industrial, connected home/building and urban sensor networks
and it will
determine the routing requirements for these scenarios.
The Working Group will provide an IPv6 only routing architectural
framework for these application scenarios. Given the transition of this
technology at this time it is believed that an IPv4 solution is not
necessary. The framework will take into consideration various aspects
including high reliability in
the presence of time varying loss characteristics and connectivity while
permitting low-power operation with very modest memory and CPU pressure
in
networks potentially comprising a very large number (several thousands)
of
nodes.
The Working Group will explore aspects of mobility within a single LLN
(if any) in the routing requirement creation.
The Working Group will pay particular attention to routing security and
manageability (e.g., self configuration) issues. It will also need to
consider the transport characteristic the routing protocol messages will
experience.
Mechanisms that protect an LLN from congestion collapse or that establish
some degree of fairness between concurrent communication sessions are out
of scope of the Working Group. It is expected that applications utilizing
LLNs define appropriate mechanisms.
Work Items:
- Produce routing requirements documents for Industrial, Connected Home,
Building and urban sensor networks. Each document will describe the use
case and the associated routing protocol requirements. The documents will
progress in collaboration with the 6lowpan Working Group (INT
area).
- Survey the applicability of existing protocols to LLNs. The aim of
this
document will be to analyze the scaling and characteristics of existing
protocols and identify whether or not they meet the routing requirements
of the applications identified above. Existing IGPs, MANET, NEMO, DTN
routing protocols will be part of evaluation.
- Specification of routing metrics used in path calculation. This
includes static and dynamic link/node attributes required for routing in
LLNs.
- Provide an architectural framework for routing and path selection at
Layer 3 (Routing for LLN Architecture) that addresses such issues as
whether LLN routing protocols require a distributed and/or centralized
path computation models, whether additional hierarchy is necessary and
how it is applied.
Manageability
will be considered with each approach, along with various trade-offs for
maintaining low power operation, including the presence of non-trivial
loss and networks with a very large number of nodes.
- Produce a routing security framework for routing in LLNs.
Goals And Milestones:
July 2008 Submit Routing requirements for Industrial applications to the
IESG to be considered as an Informational RFC.
July 2008 Submit Routing requirements for Connected Home networks
applications to the IESG to be considered as an Informational
RFC.
July 2008 Submit Routing requirements for Building applications to the
IESG to be considered as an Informational RFC.
July 2008 Submit Routing requirements for Urban networks applications to
the IESG to be considered as an Informational RFC.
November 2008: Submit Routing metrics for LLNs document to the IESG to
be
considered as a Proposed Standard.
February 2009: Submit Protocol Survey to the IESG to be considered as an
Informational RFC.
April 2009: Submit Security Framework to the IESG to be considered as an
Informational RFC
May 2009: Submit the Routing for LLNs Architecture document to the IESG
as an Informational RFC.
June 2009: Recharter.
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email: bheile@ieee.org