M2M関連状況 roll&core WG meeting in IETF86

708 views
570 views

Published on

ISOC-JP主催 IETF86報告会で使用したスライドセットです。

Published in: Technology
0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
708
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
25
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

M2M関連状況 roll&core WG meeting in IETF86

  1. 1. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 1 M2M関連状況 roll & core WG meeting in IETF86 Shoichi Sakane Cisco Systems 18-Apr-2013 ISOC-JP IETF86報告会
  2. 2. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 2 「さかね」です。 §  某計測制御メーカに19年勤務 制御ネットワークの研究開発 IPsecの相互接続テストのためにWIDEプロジェクトに参加 kame プロジェクトでIPv6/IPsecスタックの開発と普及活動 IETF 43th Chicagoから参加 工場向け無線規格 ISA100にて標準化活動 §  2010年6月 シスコシステムズ合同会社 入社 IoT関連技術の技術調査 IEEE1888標準化活動 §  他にも・・・ KAME IPv6 / IPsec stack racoon: a KMP daemon. Wireshark: dissector of IKEv2, CoAP RFC 4430 (PS), RFC 6784 (PS), RFC 5868 (Inf.) Twitter ID: tanupoo
  3. 3. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 3 Data Center Cloud Application Hosting, Management, IoT Analytics Core Networking IP/MPLS, QoS, Multicast, Security Multi-Service Edge 3G, 4G, LTE, WiMAX, WiFi Ethernet Embedded Systems and Sensors Low power & bandwidth, Machines Wired or Wireless Network Management Applications HERE !! IoT関連技術と言っても・・・ IoTアーキテクチャ例 Fog Computing, Cisco
  4. 4. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 4 センサー網におけるIP技術の主な4つの課題 §  動作条件の厳しい通信機器の存在 省電力 物理的サイズ(5mm〜) 低CPU性能(8 or 16-bit, 低クロック 8~16MHz) 少ないメモリ(~128 KB) スリープモード §  通信条件の厳しいネットワークの存在 多数のノード(〜数千ノード) 低通信帯域(〜250kbps) 高パケット損失性 技術者が直接メンテナンスできない環境 新しいリンクに対応す る適合層の標準化 LLN向け汎用アプリ ケーションプロトコル の標準化 耐障害性経路制御 プロトコルの標準化 Challenge Areas これらの特徴を持つネットワークをIETFでは “LLN” (Low power and Lossy Network) 低消費電力&高パケット損失ネットワーク と呼んでいる LLN向け機器の実 装ガイド これらの特徴を持つ機器をIETFでは “Smart Object” と呼んでいる LLN向け機器管理 技術の標準化
  5. 5. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 5 Lightweight Impl. lwig WG IETF80, Mar 2011 Constrained Envinronments core WG IETF76, Nov 2009 Z-Wave Zigbee IP LLNに関するIETFの動向 Low power and Lossy Networks roll WG IETF71, Mar 2008 Low Power WiFi PLC Zigbee/HomePlug, Autumn 2008 OpenSG/UCAlug, Summer 2009 IEEE802.15.4-2003, Autumn 2003 Zigbee & WiFi collaboration, Sprint 2010 SmartGrid Bar-BoF, Autumn 2009 IPv6 over LoWPAN 6lowpan WG IETF61, Nov 2004 LoWPAN EISA ACT, 2007 Smart Objects Workshop IETF80, Mar 2011 Cross Layers Issues BoF IETF82, Nov 2011 IPv6 Time Synchronization and Channel Hopping IETF86, Mar 2013 Management of Constrained Networks and Devices IETF85, Nov 2012 IoT Bar-BoF, Spring 2010 LLN向け機器管理 技術の標準化 SIDE-BAR BOF LLN向け汎用アプリ ケーションプロトコル の標準化 LLN向け機器の実装 ガイド 新しいリンクに対応す る適合層の標準化 耐障害性経路 制御プロトコル の標準化
  6. 6. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 6 というわけで、今日の御題 §  core WG §  roll WG §  6tsch
  7. 7. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 7 What is “core” WG ? §  Constrained RESTful Environment Co-chairs: Carsten Borman (Bremen Univ) Andrew McGregor (Allied Telesis) §  Mission M2M向けのアプリケーションプロトコルの策定 §  RFCs and Significant Documents RFC 6690: CoRE Link Format CoAP Specifications Core Block Observe HTTP Mapping and Proxy Group communication framework 新しいリンクに対 応する適合層の 標準化 LLN向け汎用アプリ ケーションプロトコル の標準化 耐障害性経路制御 プロトコルの標準化 Challenge Areas LLN向け機器の実 装ガイド
  8. 8. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 8 core WG: Document Status §  Constrained Application Protocol IETF Last Call finished. Now in AD review. draft-ietf-core-coap-15 has been published. §  Blockwise transfers in CoAP Fragment/reassemble support draft-ietf-core-block-11 Plan to submit to IESG review after core-coap published. §  Observing Resources in CoAP RESTful Pub/Sub support draft-ietf-core-observe-08 Plan to submit to IESG review after core-coap published.
  9. 9. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 9 core WG meeting §  Resource directory draft-shelby-core-resource-directory-05 will be adopted as a WG draft. §  CoAP profile /.well-known/profile provides a profile about CoAP protocol. e.g. supported options or content-format, block size. §  Groupcomm Solution for configuring group membership. RD or DNS get -> post ? start from single-subnet configuration, and then complex case. Security is out of scope so far. EP EP Client Client Registration Lookup RD
  10. 10. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 10 core WG meeting, cont. §  Sleepy node support Sleepy node performance measurement. Discussion continues. CoAP Client Sleepy CoAP Serverrequest/ response request/ response Sleep-aware reverse proxy Constrained Network Non-sleepy CoAP Server Sleep-aware reverse proxy ü CoRE Sleep-aware Resource Directory Support storing published sleep parameters (state or duration) from CoAP servers ü Sleep-aware CoAP 5.03 Response Capability If CoAP request to a sleeping server is received, proxy returns a ‘5.03 Retry-After’ response to client. 5.03 contains a timestamp maxAge indicating when the sever will wake back up. ü Sleep-aware CoAP Store-and-Forward Capability If CoAP request to a sleeping server is received, proxy stores request until server wakes up and then forwards it. ü Caching capability Cache GET responses from server if maxAge option is present (this is not a sleep aware feature)
  11. 11. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 11 core WG meeting, cont. §  HTTP-CoAP reverse proxy and URI mapping for implementers to make it interoperable. draft-castellani-core-http-mapping-07 §  Alternative transport CoAP over TCP, DTN, ... CoAP over SMS, USSD OMA Lightweight M2M §  Others Cross reverse convention mapping JSON for linkformat IPsec for CoAP SMS: Short Messaging Service USSD: unstructured supplementary service data, SMS for GSM GSM: Global Service for Mobile OMA: Open Mobile Alliance
  12. 12. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 12 What is roll WG? §  Routing Over Low power and Lossy networks Co-chairs: JP Vasseur (Cisco) Michael Richardson (Consultant) §  Mission LLNとSmart Objects向けの経路制御に関する課題の解決 “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, Low Power WiFi.” §  RFCs and Significant Documents RFC 5548, 5673, 5826, 5867: Requirement for Urban, IA, HA, BA RFC 6206: Trickle Algorithm RFC 6550: RPL Core Spec RFC 6551: Routing Metrics RFC 6552: Objective Function Zero RFC 6553: IPv6 Hop-by-Hop Option for RPL RFC 6554: IPv6 Routing Header Option for RPL P2P-RPL in IESG queue RPL Multicast 新しいリンクに対 応する適合層の 標準化 LLN向け汎用アプリ ケーションプロトコル の標準化 耐障害性経路制御 プロトコルの標準化 Challenge Areas LLN向け機器の実 装ガイド
  13. 13. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 13 roll WG: Document Status §  Reactive Discovery of Point-to-Point Routes in LLN IESG evaluation was done. PIO was removed, too confusing. the option to send data (an ipv6 upper layer protocol) was removed; use case was unclear. approved by IESG as Experimental RFC. (30-Mar-2013) §  p2p-measurements approved by IESG as Experimental RFC. (04-Apr-2013) now in Editor queue. §  Trickel Multicast IPR claim filed, Nokia Corporation WG Last Call ended. (30-Mar-2013) §  Terminology AD evaluation was done, revised id needed. IETF Last Call ended. (30-Mar-2013) §  Security Threat Analysis IETF Last Call ended (21-Jan-2013) draft-ietf-roll-security-threats-01 was published. (25-Feb-2013)
  14. 14. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 14 roll WG: Applicability Documents §  Industrial, home and building app. are WG adopted. §  Metering applicbility statement has gone AWOL ? needs resurrection by end of april. §  Home and building roll-rpl-applicability-home-building à roll-p2p-rpl-applicability-home building p2p, home, building とは何か?ついて紛糾。 e.g. managed or unmanaged
  15. 15. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 15 6tsch §  IPv6 access and routing over deterministic (TSCH) MAC §  Required by the industrial networks. originally from RPL applicability Liaizon with ISA100.20 dependency: IEEE 802.1TSN, ISA100.20, IoT6 §  Motivation from Industrial Deterministic Routing Extension for LLN TDMA(L2)の待ち時間をメトリックに扱う提案。 TSCH: Time Synchronization and Channel Hopping defined by IEEE1888.15.4e 10ms 20ms 40ms 30ms A B C D AàB AàC BàD CàD t (ms) 10 20 30 40 50
  16. 16. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 16 6tsch: Players §  PCE   for  centralized  scheduling.   has  full  knowledge  of  topology  and   traffic  requirements  to  computes   schedule.   communicates  with  nodes  to  configure   their  schedule.   PCE-­‐node  protocol  TBD   e.g.  CoAP  in  COMAN   PCE  typically  schedules  hard  links.   §  6tus   for  distributed  scheduling.   management  and  track  reservaFon.   LLN (802.15.4e) 6tus TCSH CoAP NODE BBR 6tus TCSH CoAP NODE BBR PCE Ethernet
  17. 17. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco ConfidentialPresentation_ID 17 Conclusion core WG ü Core: IETF LC finished. ü Observe: AD review soon. ü Block: AD review soon. ü additional protocols resource directory. sleepy support. http-coap mapping. etc.... roll WG ü P2P-RPL, Measurement become RFCs soon. ü Others in progress terminology. trickle multicast. security analysis. ü Applicability Industry, Home and Building. Metering. ü 6tsch
  18. 18. Lake Formosa

×