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NEtwork MObility (NEMO)

NEtwork MObility (NEMO). Speaker: Yi-Ting Mai Contact info. :wkb@wkb.idv.tw Date: 2010/05/11. Outline. MIPv6 (Mobile IP version 6) NEMO (NEtwork MObility ) NEMO research article “ On the Design of Micro-mobility for Mobile Network ” Conclusion. Mobile IPv6. Mobile IPv6

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NEtwork MObility (NEMO)

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  1. NEtwork MObility (NEMO) Speaker: Yi-Ting Mai Contact info. :wkb@wkb.idv.tw Date: 2010/05/11

  2. Outline • MIPv6 (Mobile IP version 6) • NEMO (NEtwork MObility ) • NEMO research article “On the Design of Micro-mobility for Mobile Network” • Conclusion

  3. Mobile IPv6 • Mobile IPv6 • Allow IPv6 nodes to move from one IP subnet to another • While a mobile node is away from home subnet • It sends information about its current location to the home agent • The home agent intercepts packets addressed to the mobile node and forwards them to mobile node’s current location

  4. Mobile Node move Link B Home Link Link A Internet Router Link C Router Router Home Agent Correspondent Node A Mobile IPv6 scenario

  5. Home Network Internet Visited Network Mobile IPv6 routing HA Home Agent with which node’s home address is associated Correspondent Nodecommunicating with the mobile node Mobile Node with a care-of address

  6. CN • MN sends a Binding Update to an HA on previous network • HA returns a Binding Acknowledgement • HA tunnels packets to MN • MN sends a Binding Update to CN (3) (4) IPv6 router with HA function IPv6 router (3) (1) (2) MN move Mobile IPv6 handover

  7. NEtwork MObility (NEMO) • Network mobility • Manage the mobility of an entire network • Mobile network includes one or more mobile routers (MRs), which connect it to the global Internet • Mobile Network Nodes (MNNs) • Nodes behind the MR(s) can be either fixed or mobile. • Mobile network example • Networks of sensors and computers deployed in vehicles • Vehicles are increasingly equipped with a number of processing units for safety and ease of driving reasons, as advocated by ITS applications

  8. TTS Server NEMO network scenario ADSL/WiFi WiMax/3.5G Workstation V-I communication V-I communication DSRC/802.11 DSRC/802.11 V-V communication V-V communication

  9. AR AR MR MR MR MR NEMOterminology (1/2) • Mobile network • A IP subnet is composed of a set of nodes • A mobile network as a single unit • Connected to the Internet through one or more mobile routers (MR) via AR (access router) Internet

  10. AR CN MN Internet MR VMN LFN AR AR LFN LMN LMN NEMOterminology (2/2) • Mobile Network Nodes (MNNs) -- different kind of nodes in a mobile network • Mobile Router (MR) • Border router of the mobile network • Local Fixed Nodes (LFNs) • It permanently located in mobile network • Local Mobile Nodes (LMNs) • Nodes belong to a mobile network • Visiting Mobile Nodes (VMNs) • Do not belong to the mobile network • CNs • Nodes communicating with MR, LFNs and LMNs, VMNs

  11. ITS as a mobile network • Several IPv6 nodes in a single mobile entity • Multiple IP subnets • Each node has an IPv6 address • Every IPv6 address contains a common IPv6 prefix • Different communication media (3G, M5, MM, WiFi, WiMax...) available Mobile Router

  12. IETF NEMO support (1/2) • Mobile router manages mobility of the entire network • Current location (care-of address) is associated with HA • Nodes inside the mobile network don't need to participate in mobility management Mobile Network Home Agent Correspondent Node

  13. IETF NEMO support (2/2) • Bi-directional tunnel between MR and HA to maintain sessions • Address registration • Care-of address (CoA) is bound to mobile network prefix (MNP), not home address (HoA) • Association in HA • MNP (RFC 4885) • MR-CoA instead of MR-HoA  MR-CoA • HA records a network-specific route rather than a host-specific one • MR-CoA is the next hop to the mobile network determined by MNP

  14. Benefit of network mobility • Only the mobile router manages mobility and maintains Internet access through one or several access media • Nodes behind MR can be standard IPv6 nodes without mobility support mechanisms NEMO basic support Mobile IPv6

  15. On the Design of Micro-mobility for Mobile Network Junn-Yen Hu, Cheng-fu Chou, Min-Shi Sha, Ing-Chau Chang and Chung-Yi Lai, pp. 401-412, LNCS 4809, Springer, Dec. 2007.

  16. Outline • Introduction • Related Work • Micro-mobility scheme for NEMO • Performance Evaluation • Conclusion

  17. Introduction • Mobility Management(differentiated by distinct types of handoff procedure) • Macro-mobility scheme • Mobile IP • Micro-mobility scheme • Hierarchical Mobile IP, Cellular IP and HAWAII

  18. Introduction (cont.) • Mobility Management(differentiated by distinct number of moving mobile hosts) • Host Mobility (mobile node) • Mobile IP, Hierarchical MIP, Cellular IP and HAWAII. • Network Mobility (NEMO, mobile network) • NEMO Basic Support Protocol • MR • Nested NEMO • Pinball routing problem

  19. Pinball routing problem

  20. Introduction (cont.) • State of The Art • Micro-NEMO scheme is presented

  21. Related Work • Hierarchical MIP (HMIP) • Ohnishi Scheme • An extension of HMIP • To solve the pinball routing problem in NEMO rather than to provide a micro-mobility scheme for NEMO • Each MN on a vehicle still perform binding update by itself

  22. Micro-mobility scheme for NEMO • Micro-NEMO • Micro-mobility + NEMO = Micro-NEMO • Low handoff latency, less signaling cost and transparent to all MHs • It is built from HMIPv6 • To compatible with NEMO is important. • NEMO and HMIPv6 are extended by MIPv6

  23. Micro-mobility scheme for NEMO (cont.)

  24. Micro-mobility scheme for NEMO (cont.) • Scenario 1

  25. Micro-mobility scheme for NEMO (cont.) • Scenario 2

  26. Micro-mobility scheme for NEMO (cont.) • Scenario 3 • There is no need for MR of a vehicle to perform home registration when it moves around within the same micro-domain.

  27. Micro-mobility scheme for NEMO (cont.) • Scenario 4 • It is similar to that a VMN enters a new micro-domain.

  28. Micro-mobility scheme for NEMO (cont.) • Advantage • Reduce the number of global binding updates. • Reduce the number of signaling of residing nodes • Drawback • Pinball Routing • Solution: Enhanced Micro-NEMO

  29. Micro-mobility scheme for NEMO (cont.) • Enhanced Micro-NEMO Apply ROMIP concept

  30. Performance Evaluation • Simulation environment • Simulation parameter

  31. Performance Evaluation (cont.) • Performance metrics • Total number of binding updates • Average handoff latency • End to end delay • Packet overhead

  32. Performance Evaluation (cont.) • Total number of binding updates

  33. Performance Evaluation (cont.) • Average handoff latency

  34. Performance Evaluation (cont.) • End-to-end delay

  35. Performance Evaluation (cont.) • Packet overhead

  36. Conclusion • Micro-NEMO • Enhanced Micro-NEMO • Improve the number of binding update, average handoff latency, end-to-end delay and packet overhead.

  37. Reference (1/2) [1] R. Koodli, Ed., RFC4068 Fast Handovers for Mobile IPv6, July 2005,EXPERIMENTAL [2] D. Johnson, C. Perkins, J. Arkko, RFC3775 Mobility Support in IPv6, June 2004, PROPOSED STANDARD [3] T. Ernst, RFC4886 Network Mobility Support Goals and Requirements, July 2007, INFORMATIONAL [4] T. Ernst, H-Y. Lach, RFC4885 Network Mobility Support Terminology, July 2007, INFORMATIONAL [5] R. Wakikawa, A. Petrescu, P. Thubert, RFC3963 Network Mobility (NEMO) Basic Support Protocol,?V. Devarapalli, January 2005, PROPOSED STANDARD [6] Ed., M. Kojo, Ed., RFC3753 Mobility Related Terminology,?J. Manner, June 2004, INFORMATIONAL [7] IIS5711: Mobile Computing Mobile Computing and Broadband Networking Laboratory CIS, NCTU: Introduction to Mobile IPv6 [8] Thierry Ernst – ENABLE-DAIDALOS Workshop IST Mobile Summit - Budapest - July 2007: IPv6 Network Mobility (NEMO) Standardization & Usages, http://www.lara.prd.fr

  38. Reference (2/2) [10] Elmic Systems - Your Partner in Internet Connectivity, Security and Mobility [11] Hesham Soliman, MONET: Network Mobility Support in IPv6, Thierry Ernst, 52th IETF - December 2001 [12] Thierry Ernst - Motorola Labs & INRIA (Planete), Network Mobility Support in IPv6, 51st IETF London, August 2001 [13] Nigel Wall, ITS comms – the CALM, 2005/09 [14] Keisuke UEHARA, InternetCAR: Internet Connected Automobile Researches [15] Thierry Ernst – French IPv6 Worldwide Summit - Cannes - November 2006: IPv6 Network Mobility (NEMO) and ITS Usages, http://www.lara.prd.fr [16] [17] ISO TC 204 WG16 CALM, http://www.calm.hu/ [18] ITS Application Overview, http://www.itsoverview.its.dot.gov/

  39. Appendix Nested 2

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