KDDI Announces Launch of High-speed Ethernet Leased Circuit Service Connecting the U.S and Japan

KDDI Corporation
Okinawa Cellular Telephone Company

May 27, 2009

KDDI will introduce a point-to-point, high-speed leased circuit service connecting Japan and the U.S. using an Ethernet interface. Service will begin on June 30, 2009.

Since communication traffic between the U.S. and Japan has dramatically increased as Internet communication has grown and more advanced applications are used by customers, the need for broad-band services among customers in various industries, particularly Internet service providers, continues to increase.

In addition to the 155Mbps, 620Mbps, 2.4Gbps [1], and 10Gbps [1] bandwidths which are provided through the traditional international leased circuit service, 300Mbps, 450Mbps, 750Mbps, 900Mbps, and 1Gbps have been newly added to the high-speed Ethernet leased circuit in order to meet these broad-band related needs. This makes it possible for customers to choose mid-range bandwidths when necessary and to create the optimal network environment. In addition, bandwidths can easily be changed since the interface [2] provided to customers is the same.

Furthermore, this service provides other benefits, such as reduced network equipment costs compared to leased line services using traditional network equipment since a common Ethernet interface can also be used on the WAN side. Furthermore, the service makes it possible to meet the needs of customers wanting to build flexible networks that do not recognize differences between LAN and WAN.

In the future, it is expected that the high speed Ethernet leased circuit service will gradually be expanded to the low-delay Japan-England route that makes use of the RJCN cable [3], the Japan-Hong Kong route, and Japan-Singapore route.

[1] There is no 2.4Gbps and 10Gbps bandwidth for high-speed Ethernet leased lines.
[2] Interface: the physical connection provided to customers.
[3] RJCN (Russian-Japan Cable Network) cable – a submarine optical cable running between Japan and Russia that was jointly constructed with Rostelecom

Reference – Bandwidth (bps)

	155M	300M	450M	620M	750M	900M	1G	2.4G	10G
Leased circuit	º	—	—	º	—	—	—	º	º
Ethernet leased circuit	º	º	º	º	º	º	º	—	—

* The information contained in the news releases is current at the time of publication.
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