Tx Matrix System Architecture Overview; Tx Matrix System Architecture Description - Juniper TX MATRIX Hardware Manual

CHAPTER 2

TX Matrix System Architecture Overview

TX Matrix System Architecture Description

Copyright © 2010, Juniper Networks, Inc.
TX Matrix System Architecture Description on page 5
TX Matrix Routing Engine Functions on page 6
TX Matrix Routing Matrix Control Plane Architecture on page 8
Control Plane Connections Between the TX Matrix Router and T640 Router on page 10
TX Matrix Routing Matrix Switch Fabric Architecture on page 12
Switching Plane Connections Between the TX Matrix Router and T640
Routers on page 14
The routing matrix has two main architectural components, the control plane and the
forwarding plane:
The control plane in the routing matrix is formed by the connection of the host
subsystems—TX-CBs in the TX Matrix router and T-CBs in the T640 routers —and the
Routing Engines.
The forwarding plane in the routing matrix is formed by the switch fabric—TX-SIBs in
the TX Matrix router and T640-SIBs in the T640 routers—and the Packet Forwarding
Engines.
The Routing Engines and the Packet Forwarding Engines perform their primary tasks
independently. This arrangement streamlines routing control and forwarding and runs
Internet-scale backbone networks at high speeds. Figure 1 on page 6 shows the
relationship between the Routing Engines and the Packet Forwarding Engines.
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