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http://plusd.itmedia.co.jp/mobile/articles/0911/04/news108.html
http://gigazine.net/index.php?/news/comments/20070826_switch_hub/
http://pc.watch.impress.co.jp/docs/2005/1125/buffalo.htm
http://slashdot.jp/articles/05/09/20/082227.shtml
http://plusd.itmedia.co.jp/mobile/articles/0911/04/news108.html
http://gigazine.net/index.php?/news/comments/20070826_switch_hub/
http://pc.watch.impress.co.jp/docs/2005/1125/buffalo.htm
http://slashdot.jp/articles/05/09/20/082227.shtml