Title: PIA-SM: multicast based IPv6 anycast routing protocol

Authors: Satoshi Matsunaga, Shingo Ata, Hiroshi Kitamura, Masayuki Murata

Addresses: Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan. ' Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan. ' Solution Development Laboratories, NEC Corporation, 2-11-5 Shibaura, Minato-Ku, Tokyo 108-8557, Japan. ' Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan

Abstract: Today, the use of anycast address is quite limited. One of the reasons is that there is no routing protocol providing a global anycasting service. In this paper we design and implement a new anycast routing protocol called PIA-SM (Protocol Independent Anycast – Sparse Mode). We focus on PIM-SM (Protocol Independent Multicast – Sparse Mode), which is one of multicast routing protocols available now, to develop an anycast routing protocol, because anycast and multicast have many similar properties. We modified PIM-SM based on differences between multicast and anycast. We next describe the technical issues to be solved in the implementation of PIA-SM. We also show some experimental results to demonstrate PIA-SM, and verify that PIA-SM enables routers to forward an anycast packet to an appropriate node of multiple candidate nodes.

Keywords: IPv6; Internet Protocol version 6; anycast routing protocols; multicast routing protocols; PIA-SM; Protocol Independent Anycast – Sparse Mode.

DOI: 10.1504/IJIPT.2006.009744

International Journal of Internet Protocol Technology, 2006 Vol.1 No.3, pp.189 - 197

Published online: 08 May 2006 *

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