Chapter 3. Juniper Networks Router Overview

Router Architecture

Hardware Components

T640 Internet Routing Node

T320 Internet Router

M160 Internet Router

M40e Internet Router

M40 Internet Router

M20 Internet Router

M5 and M10 Internet Routers

The Juniper Networks line of routers includes the M-series routers and the new T-series router and routing node. Each platform is a complete routing system that supports a variety of high-speed interfaces (including SONET/SDH, Ethernet, and ATM) for large networks and network applications. All Juniper Networks routers share common JUNOS Internet software, features, and technology for compatibility across all platforms.

Application-specific integrated circuits (ASICs) form a definitive part of the router design and enable the router to achieve data forwarding rates that match current fiber- optic capacity. All M-series routers use the Internet Processor II ASIC, which performs the route lookup function and several types of packet processing, such as filtering, class of service, policing, rate limiting, and sampling. The T-series router routing node uses the new T-series Internet Processor for route lookups and notification forwarding.