Tx Matrix Router Overview; Tx Matrix Router Description - Juniper TX MATRIX Hardware Manual

CHAPTER 1

TX Matrix Router Overview

TX Matrix Router Description

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Copyright © 2010, Juniper Networks, Inc.
TX Matrix Router Description on page 3
The Juniper Networks TX Matrix router is the centralized switch fabric of the routing
matrix, which is a terabit routing system interconnecting up to four T640 Core Routers
to deliver up to 2.56 terabits per second (Tbps) of subscriber switching capacity. The
routing matrix multichassis architecture provides scalable growth for aggregation and
core services for voice, video, and data networks. It provides a flexible and cost-effective
means to simplify large point-of-presence (POP) and central office environments. The
routing matrix delivers high-availability services from tunnel services, ATM, DS3,
OC3/STM1, OC12/STM4, Gigabit Ethernet, 10-Gigabit Ethernet, OC48/STM16,
OC192/STM64, and other high-speed interfaces.
The routing matrix leverages the intelligent virtual services capabilities of Junos OS, which
enable you to create multiple application-specific logical networks over a single physical
topology. This gives you the ability to virtually separate traffic types that require unique
network attributes—such as ATM or high-priority voice over IP (VoIP) and third-generation
(3G) mobile traffic—from bulk transit IP traffic.
The TX Matrix router architecture cleanly separates control operations from packet
forwarding operations. This design eliminates processing and traffic bottlenecks,
permitting the TX Matrix router to achieve terabit performance levels. Control operations
in the TX Matrix router are performed by the host subsystem, which runs Junos OS to
handle traffic engineering and configuration management. High-availability, interchassis
communications are provided by an Ethernet LAN that interconnects the host subsystems
in the TX Matrix router and the T640 routers.
The TX Matrix router is a modular, rack-mountable system. One TX Matrix router can be
installed in one standard 19-in. wide, 78-in. high, EIA telco rack.
TX Matrix System Architecture Description on page 5
TX Matrix Routing Matrix Control Plane Architecture on page 8
TX Matrix Routing Matrix Switch Fabric Architecture on page 12
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