T640 Router Description

The T640 Core Router is a complete routing system that provides Gigabit Ethernet, SONET/SDH, and other high-speed interfaces for large networks and network applications, such as those supported by Internet service providers (ISPs).

Application-specific integrated circuits (ASICs) are a definitive part of the router design; these ASICs enable the router to achieve data forwarding rates that match current fiber-optic capacity.

The router accommodates up to eight Flexible PIC Concentrators (FPCs), which can each be configured with a variety of network media types—altogether providing up to 128 SONET/SDH OC48/STM16, 32 SONET/SDH OC192/STM64, or 128 Gigabit Ethernet ports for the router. In a standalone configuration, the router's maximum aggregate throughput is 320 Gbps, full duplex.

The router is a modular, rack-mountable system. Two routers can be installed in one standard, 78-in. telco rack.