NTT Com, Infinera and Ixia to Provide World's First Practical 100 Gbps Ethernet Interconnection at Interop Tokyo 2010

TOKYO, June 8, 2010 - NTT Communications (NTT Com), Infinera Japan and Ixia Communications K.K.
jointly announced on June 8 that they will provide a 100 Gbps Ethernet
transmission network for practical operation, the world's first, during the
Interop Tokyo 2010 trade show at the Makuhari Messe exhibition complex near
Tokyo from June 9 to 11.

The 100 Gbps Ethernet network was proven in recent interconnection field
tests and now will serve as the backbone network, named ShowNet, for Internet
access by exhibitors and visitors alike during Interop Tokyo 2010.

ShowNet, one of the world's largest networks created for demonstration
purposes, will showcase state-of-the-art network architecture for the
interconnection of numerous types of devices and services.

The network comprises telecommunication and network infrastructure
constructed and managed by NTT Com, an Infinera DTN(TM) scalable,
large-capacity switched DWDM (dense wavelength-division multiplexing) system
from Infinera, and a high-quality, customizable network tester for network
systems and devices from Ixia, a leading maker of IP network testers.

ShowNet incorporates the Ethernet specification 100GBASE-LR4, which is
scheduled to be standardized by mid-June after extensive testing to prove
network throughput, latency and fluctuation. Interconnection of numerous
devices using the 100GBASE-LR4 specification during the show will demonstrate
the exciting possibilities of forthcoming next-generation on network
technology.

Current Ethernet networks for Internet traffic and data communication are
designed for speeds of up to 10 Gbps. Cumulative data volume carried over
telecom backbones and worldwide interconnections, however, already surpasses
hundreds of Gbps. A technology that bundles 10 Gbps networks is now being
utilized for large-data transfers, but inherently faster transmission is
required in view of growing data volume and needs for greater transmission
efficiency and more enhanced network management.

Ethernet networks operating at 100 Gbps, which enables 25GB of data - the
volume of a Blu-ray disk - to be transferred in two seconds at the
theoretical maximum speed, are expected to lead to an explosive increase in
broadband use.

Based on ShowNet's performance and user reactions during Interop Tokyo
2010, the three companies will consider taking accelerated steps to offer 100
Gbps Ethernet solutions in the foreseeable future, possibly including NTT
Com's introduction of a 100 Gbps Ethernet communication platform for GIGA
STREAM high-quality leased lines; Infinera's introduction of 100Gbps systems
based on next-generation 500Gbps photonic integrated circuits and coherent
transmission and Ixia's launch of the K2 for testing 40 Gbps and 100 Gbps
devices based on the new IEEE802.3ba standard.

    About NTT Communications Corporation
    Please visit www.ntt.com/index-e.html

    Contact:  NTT Communications
              (Ms.) Yasuko Oka or (Ms.) Akiko Suzaki
              Public Relations Office
              Tel: +81-3-6700-4010
              e-mail: hodo-cp@ntt.com

              Infinera Japan
              Chew Peng Healey
              Tel: +65-9731-1948
              e-mail: chealey@infinera.com
              URL: www.infinera.com/

              Ixia Communications K.K.
              Kelly Maloit
              Director of Public Relations
              Tel: +818-444-2957
              e-mail: kmaloit@ixiacom.com
              URL: www.ixiacom.com

(Ms.) Yasuko Oka or (Ms.) Akiko Suzaki, both of the NTT Communications Public Relations Office, +81-3-6700-4010, hodo-cp at ntt.com; or Chew Peng Healey of Infinera Japan, +65-9731-1948, chealey at infinera.com; or Kelly Maloit, Director of Public Relations of Ixia Communications K.K., +818-444-2957, kmaloit at ixiacom.com