NTT Tackles Traffic Management

TOKYO -- Nippon Telegraph and Telephone Corporation (NTT; Head Office: Chiyoda-ku, Tokyo; President: Norio Wada) is pleased to announce the development of an IP optical traffic engineering (TE) server for an IP optical backbone network composed of IP routers and OXCs (*1). This server utilizes network resources, responds flexibly to unexpected changes in traffic demand, and restores operations quickly in the event of system failures or natural disasters.

Test-bed trials have shown that this server technology can perform dynamic network control in an IP optical backbone network consisting of node equipment such as IP routers and OXCs. The IP optical TE server controls the IP optical backbone network using an original traffic control algorithm that applies to both IP routers and OXCs, thereby achieving both flexibility and reliability in the backbone network.

In addition, the above traffic control algorithm is implemented in the IP optical TE server separated from node equipments, thus enabling traffic-control policies of a carrier to be reflected. This makes it possible to achieve both flexible and reliable backbone network by using the GMPLS (*2)-based network control technology promoted by NTT Laboratories (Fig. 1).

NTT Group (NYSE: NTT)