[6lowapp] Fwd: BOF request for IETF 76: 6LowApp
Carsten Bormann <cabo@tzi.org> Mon, 07 September 2009 21:21 UTC
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From: Carsten Bormann <cabo@tzi.org>
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Date: Mon, 07 Sep 2009 23:22:08 +0200
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Subject: [6lowapp] Fwd: BOF request for IETF 76: 6LowApp
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After positive on-list and off-list feedback, I just sent off this BOF request to meet the deadline. By the definition of a BOF, nothing is final, so please continue to comment. Gruesse, Carsten Begin forwarded message: > From: Carsten Bormann <cabo@tzi.org> > Date: September 7, 2009 23:20:14 +0200 > To: app-ads@tools.ietf.org > Cc: agenda IETF <agenda@ietf.org> > Subject: BOF request for IETF 76: 6LowApp > > Alexey, Lisa, > > here is the formal BOF request for 6LowApp for IETF 76. > (I will now forward this message to the 6lowapp mailing list for its > further discussion.) > > Gruesse, Carsten > > > BOF request for IETF 76 (Hiroshima) > $Revision: 1.3 $ > > BOF Name: 6lowapp > Area: APP > Conflicts: > -- must avoid: 6LoWPAN, ROLL, APPAREA, OPSAREA > -- Avoid if possible: TSVAREA, SAAG > -- (others???) > Expected attendance: ~100 (see below) > Timeslot: 120 minutes > > BOF Chairs: Carsten Bormann, Zach Shelby > > Description: > > The 6LoWPAN and ROLL WGs are laying the groundwork to make the > Wireless Embedded Internet a reality, but what application protocols > will we use? Request-response protocols like HTTP are a poor fit to a > communication model with battery-operated, mostly sleeping nodes. In > addition, the usual data formats (both headers and body) are perceived > to be too chatty for the 50-60 byte payloads possible in LoWPANs and > to require too much code for the 8-bit and 16-bit processors > dominating the Internet of Things. Still, it would be a mistake to > start a new silo of application protocols that do not benefit from > existing application area Internet experience. > > In the 6lowapp Bar BOF discussion at IETF 75 in Stockholm, five areas > of work were identified. (Section references point to the problem > statement document, http://tools.ietf.org/html/6lowapp-problem .) > > a -- Security (section 6). > > b -- Transport (section 3). > TCP is often considered relatively heavyweight while UDP lacks the > necessary reliability and ordering services. Results of > 6LowApp-related activities might include a "profiling" of TCP that > just includes the necessary elements without losing compatibility, > and/or a set of "building blocks" that could be used in a specific > application protocol to enhance UDP by just the functions actually > required. > > c -- Data Representation, both for the application data and for the > protocols themselves. This is often referred to as "binary > encoding"; the main benefits come less from being binary than from > being efficient, easily processable and in particular predictable > (reducing code size). W3C EXI was one of the schemes mentioned. > > d -- Base Application Protocols. HTTP and SNMP were mentioned; there > is > a strong relationship to the Transport problem on one side and the > data representation problem on the other side. A related area is > the choice of *Namespaces*, e.g., HTTP has URIs, SNMP has Object > Identifiers. > > e -- Service Discovery (section 4). > > The BOF will focus on the last three items (c to e), with a clear > emphasis on application (d) and service discovery (e) protocols. > (Rationale: a and b probably require longer time frames and may fan > out to different IETF areas. This does not mean we should ignore > them.) > > The goal of the BOF is to build up the content for a WG charter > proposal for one initial working group in the APP area. > > Agenda (2 hours): > > 5 min Agenda bashing Carsten > 10 min Goal and purpose of the BOF Carsten > 10 min Description of the problem/problem space Carsten > 15 min 6lowapp WG proposal Zach > 30 min Contributions so far TBC > Several drafts are in the pipeline for submission before the > Hiroshima initial I-D deadline, 2009-10-19. It would be > premature to make an exact list, but subjects will include: > -- Requirements input (Building automation, Smart energy; > ZigBee/HomePlug TRD) > -- Input from relevant large projects (e.g., SENSEI) > -- Solutions based on existing standards (EXI, IPFIX, SLP) > -- Solutions based on industry protocols > 40 min Open Discussion All > 10 min Calling the questions ADs > > Further Reading: > -- 6lowapp Wiki http://6lowapp.net > -- 6lowapp Problem Statement http://tools.ietf.org/html/6lowapp-problem > > Expected Audience: > > The 6lowapp mailing list has 52 members, many of which were attendees > of the Stockholm Bar BOF. Other potential attendees include ROLL and > 6LoWPAN attendees, plus other interested APP area attendees. > (Influence of the meeting location in both directions, very hard to > estimate.)
- [6lowapp] Fwd: BOF request for IETF 76: 6LowApp Carsten Bormann