http://neasia.nikkeibp.com/wcs/leaf?CID ... ews/274435
NTT, Keio University Test 43Gbps Network That Can Send a Movie in a Second
October 31, 2003 (TOKYO) -- NTT Corp, NTT East Corp and Keio University started an experiment on October 24 to verify a super high-speed network that marked a transmission speed of 43Gbps at the maximum.
With the speed, "We can transmit a two-hour movie recorded in DVD in one second," said Professor Hideyuki Tokuda of Keio University, which will participate in the experiment. The experiment will continue until March 2005.
Connecting two sites of Keio University, the Yagami campus (located in Yokohama city in Kanagawa Prefecture) and Shonan Fujisawa campus (in Fujisawa city in Kanagawa Prefecture), with the 43Gbps optical relay transmission channel, various experiments are expected to be conducted, including distribution of large volume contents such as movies, establishment of wide-area distributed IP storage, and controlling quality of service (QoS) by super high-speed network.
Both campuses have installed optical transport network (OTN) multiplexing equipment developed by NTT Network Innovation Laboratories. The terminals multiplex gigabit Ethernet signals in 32 channels. Between the terminals, data is transmitted in a serial optical signal (which is in one wave) with 43Gbps.