Point-to-Point Tunneling Protocol

Multi-Protocol Label Switching

だそうですよ。 http://d.hatena.ne.jp/keyword/DSBL http://info.2ch.net/wiki/index.php?%A5%D7%A5%ED%A5%AF%A5%B7%A4%B8%A4%E3%A4%CA%A4%A4%A4%CE%A4%CBPROXY%B5%AC%C0%A9%A4%CB%B0%FA%A4%C3%A4%AB%A4%AB%A4%C3%A4%BF%BE%EC%B9%E7%A4%CE%C2%D0%BD%E8%CB%A…