Correspondent Information Route Optimization Scheme on Proxy Mobile IPv6 Sungkyunkwan University Department of Electrical and Computer Engineering Young-Hyun Choi Advising Professor : Tai-Myoung Chung

Introduction Mobile IPv6 Proxy MIPv6 Routing Optimized(RO) PMIPv6 The Mobile Node(MN) is involved in all mobility signaling Problem : MN has limited processing power, Battery, Memory resource Proxy MIPv6 Network-based mobility management service All mobility signaling is controlled through the network entities Problem : The triangle routing problem that causes inefficient routing path Routing Optimized(RO) PMIPv6 Liebsch’s scheme : Heavy signaling cost Dutta’s scheme : Reduce signaling cost One-way Routing path problem Fig. 1 Proxy Mobile IPv6 operation process

Related Work Liebsch’s RO scheme Dutta’s RO scheme LMA MN 1 ①, ⑦ Data (MN1 → MN2) ⑥, ⑨ Data (MN1 → MN2) MN 2 MAG1 MAG2 ⑤ Data (MN1 → MN2) ⑧ Data (MN1 → MN2) ② Data (MN1 → MN2) ③ CBU (MN2, MAG2) ④ CBA (MN2, MAG2) LMA MN 1 ①, ⑪ Data (MN1 → MN2) ⑩, ⑬ Data (MN1 → MN2) MN 2 MAG1 MAG2 ③ RO Init ④ RO Init Ack ⑦ RO Report ⑧ RO Report Ack ⑨ Data (MN1 → MN2) ⑫ Data (MN1 → MN2) ② Data (MN1 → MN2) ⑤ RO Setup ⑥ RO Setup Ack Fig. 2 RO in proxy mode of Liebsch Fig. 3 Light Weight RO of Dutta: MN1→MN2

Suggestion (1/2) Correspondent Information Route Optimization (CIRO) CIRO scheme solves Dutta’s inefficient signaling cost problem CIRO uses CI message Correspondent Information(CI) message Between MAGs Supplies the MAG1 with MN2’s information LMA sends the MN1’s address, the MN2’s address and the MAG2’s address information Finally, MAG1 and MAG2 could know MN1 and MN2’s information 1 2 3 4 5 6 7 8 9 Sequence # A H L K M R P C I Reserved Lifetime Mobility options TABLE I. Message Formation of CIRO

Suggestion (2/2) Correspondent Information Route Optimization (CIRO) MN1 MN2 MAG1 MAG2 LMA Data (MN1 → MN2) CBI (MN2, MAG2) Data (MN2 → MN1) CBU (MN2, MAG2) CBA (MN2, MAG2) Signaling for Binding MN1’s ID, MN2’s ID MAG2’s address MN2’s HNP LMA MN 1 ①, ⑧ Data (MN1 → MN2) ⑦, ⑩ Data (MN1 → MN2) MN 2 MAG1 MAG2 ⑥ Data (MN1 → MN2) ② Data (MN1 → MN2) ③ CI (MN2, MAG2) ④ CBU (MN2, MAG2) ⑤ CBA (MN2, MAG2) ⑨ Data (MN1 → MN2) Fig. 4 Flow diagram of CIRO Fig. 5 Sequence diagram of CIRO

Handover (1/3) How to Route Optimization on Handver of Liebsch LMA MN 1 MN 2 MAG2 ①, ⑪ Data (MN1 → MN2) ⑩, ⑬ Data (MN1 → MN2) MAG1 MAG3 ③ RO Init ④ RO Init Ack ⑥ RO Setup Ack ⑤ RO Setup ⑫ Data (MN1 → MN2) ② Data (MN1 → MN2) ⑨ Data (MN1 → MN2) ⑦ RO Report ⑧ RO Report Ack Fig. 6 Flow Diagram of Proxy Mode of Liebsch on Handover

Handover (2/3) How to Route Optimization on Handver of Dutta LMA MN 1 MN 2 MAG2 ①, ⑨ Data (MN1 → MN2) ② Data (MN1 → MN2) ⑧, ⑪ Data (MN1 → MN2) MAG1 MAG3 ③ CBU (MN2, MAG3) ⑦ Data (MN1 → MN2) ⑤ CBU (MN2, MAG3) ⑥ CBA (MN2, MAG3) ⑩ Data (MN1 → MN2) ④ CBA (MN2, MAG3) Fig. 7 Flow Diagram of LWRO of Dutta on Handover

Handover (3/3) How to Route Optimization on Handver of CIRO LMA MN 1 MN 2 MAG2 ①, ⑧ Data (MN1 → MN2) ② Data (MN1 → MN2) ⑤, ⑩ Data (MN1 → MN2) MAG1 MAG3 ③ CI (MN2, MAG3) ③ CI (MN2, MAG3) ④ Data (MN1 → MN2) ⑥ CBU (MN2, MAG3) ⑦ CBA (MN2, MAG3) ⑨ Data (MN1 → MN2) Fig. 8 Flow Diagram of CIRO on Handover

Numerical Results Fig. 9 Signaling Cost on basic operation - Simulation results Fig. 10 Signaling Cost on Handover - Simulation results

Reference D. Johnson et al., “Mobility Support in IPv6”, RFC3775, June. 2004. J.-M. Lee, et al., "Performance Analysis of Route Optimization on Proxy Mobile IPv6", I CSNC, October 2008. S. Gundavelli et al., "Proxy Mobile IP6", RFC 5213, August. 2008. A. Dutta et al,. "PMIP Extension for Inter-MAG Route Optimization", Internet draft, Jul y. 2008. M. Liebsch et al., "Route Optimization for PMIPv6", Internet draft, November. 2007. S. Pack et al., "A study on performance of Hierarchical Mobile IPv6 in IP-based cellular networks", IEICT Trans. Commun., vol.E87-B, no.3, March. 2004. S. Park et al., "Localized PMIPv6 with Route Optimization in IP based Networks", IEICT Trans. Commun., vol.E90-B, no.12, December. 2007. J Xie et al., " An optimal location management scheme for minimizing signaling cost in mobile IP", Proc. IEEE ICC 2002, vol.5, pp.3313-3317, April. 2002. X. Zhang et al., "P-MIP: Paging extentions for mobil IP", ACM Mobile Networks and Ap plications, vol.7, no.2, pp.127-141, April. 2002. Young-Hyun Choi and Tai-Myoung Chung, "Enhanced Light Weight Route Optimizatio n in Proxy Mobile IPv6", NCM, pp.501-504, 2009 Fifth International Joint Conference o n INC, IMS and IDC, August, 2009. J. Lee, et al., "Performance Analysis of Route Optimization on Proxy Mobile IPv6", ICSN C, October 2008. J. -H. Lee, J. -H. Lee, and T. -M. Chung, "A NHovel Inter-LMD Handoff Mechanism for Network-Based Localized Mobility Management", NEW2AN 2007, LNCS 4712, pp. 356- 366, September, 2007.