Considerations (1) on new generation network AKARI V.2.0: improvement of overlay network (モバイルマルチメディア通信)

概要

論文の詳細を見る
The design concept of AKARI V.2.0 states that packets of each service (application) are transferred between overlay routers, managed by service providers, and routing nodes in the network of the communication carrier. The carrier has no means of detecting these packets, so it has to accept a number of limitations including, (1) unable to identify the use status of the network, such as the number of packets transferred, for each service, (2) unable to identify and remove non-permitted packets, (3) unable to restrict the flow of packets into the network (i.e. routing nodes) when communication troubles happened. The author thinks that the AKARI V.2.0 network can never be used for business, since these limitations lead to poor reliability and security. The installation of a gate device, managed by the carrier, between the overlay router and the routing node, can ease management concerns, and solve these problems. The examples of P2P / cloud computing service network and ALM broadcast service networks are shown. Network functions that can set and free temporarily VPN tunnels in the network are described, which are very necessary to support telephony with its massive number of terminals. The method described to improve the AKARI overlay network is also applicable to an IP core network as a substitute for the AKARI core network;
2010-01-14