NTT Research and Development 2010 Review of Activities

Overview

This system can efficiently mix and multiplex signals of high-speed/broadband Ethernet systems and STM^*1 systems (up to 10-Gbit/s class) up to 40 Gbit/s, so it dramatically reduces transmission costs. It also provides—as a world’s first—a 10/40 G-class large-capacity high-reliability protection function, and relief in response to transmission-channel blockages and obstructed transfers becomes possible without affecting traffic. By applying this system, it becomes possible to construct a high-reliability and economic ultra-high-speed network.

Features

• Large-volume traffic (40 G) is relieved by applying high-reliability protection on occurrence of transmission-channel blockage and obstructed transfer.
• Reduction of maintenance work by 10/40 G-class large-capacity high-reliability protection function
• Mixed multiplex transmission of Ethernet-system/STM-system signals up to 40 G is made possible by VCAT^*2 technology.
• 10 GbE 100%-wire rate transmission is made possible by VCAT technology.

Application scenarios

• High-reliability 40 G-class backbone optical networks
• High-reliability leased-line services

• *1 STM: Synchronous Transport Module
• *2 VCAT: Virtual Concatenation