@techreport{oai:ipsj.ixsq.nii.ac.jp:02000742, author = {山口,晃史 and 北口,善明 and 永見,健一 and 水越,一郎 and 登,大遊 and 石橋,圭介 and Kohshi Yamaguchi and Yoshiaski Kitaguchi and Kenichi Nagami and Ichiro Mizukoshi and Daiyuu Nobori and Keisuke Ishibashi}, issue = {56}, month = {Feb}, note = {VPN中継サービス利用時には,中継サーバ経由による迂回が発生する.迂回低減のためには限られたサーバで全ユーザ・アクセス先サーバペアに対して迂回が最小化されるようなVPN中継サーバ配置箇所を探索する必要がある.本研究では,全ユーザ・アクセス先サーバペアの最短経路中で出現頻度の高いASを媒介中心性の高いノードと定義し,そこにVPN中継サーバを設置した場合のAS経路長と現状のAS経路長とをシミュレーションで比較し,評価した., When a VPN relay service is used, bypassing via relay servers occurs. In order to reduce diversions, it is necessary to search for VPN relay server placement points where the average diversion is minimised for all user/server pairs with the minimum number of placement points. In this study, the AS with the highest frequency of occurrence in the shortest paths of all user/server pairs is defined as a node with high mediation centrality, and the AS path lengths when a VPN relay server is placed there are compared with the current AS path lengths by simulation and evaluated.}, title = {VPN中継サービス利用時の迂回を低減する中継サーバAS設置方式}, year = {2025} }