Juniper TX MATRIX, Hardware Manual, Page: 59 / 396

TX Matrix RE-600 Description
The RE-600 boots from the storage media in this order: the PC Card (if present), then
the CompactFlash card (if present), then the hard disk.
Figure 12: Routing Engine 600
Each Routing Engine 600 (shown in Figure 12 on page 27) consists of the following
components:
•
CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It
has a Pentium-class processor.
• SDRAM—Provides storage for the routing and forwarding tables and for other Routing
Engine processes.
•
CompactFlash card—Provides primary storage for software images, configuration files,
and microcode. The fixed CompactFlash card is inaccessible from outside the router.
• Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the
system if the CompactFlash card fails.
•
EEPROM—Stores the serial number of the Routing Engine.
•
Interfaces for out-of-band management access—Provide information about
Routing Engine status to devices (console, laptop, or terminal server) connected to
ports located on the Connector Interface Panel (CIP).
The faceplate of the Routing Engine 600 contains the following:
• One PC Card slot—Accepts a removable PC Card, which stores software images for
system upgrades.
A slot labeled
PC CARD
on the Routing Engine faceplate accepts a Type I PC Card, as
defined in the PC Card Standard published by the Personal Computer Memory Card
International Association (PCMCIA). The TX Matrix router is shipped with a PC Card
that contains Junos OS. The PC Card can be used to copy Junos OS from the PC Card
onto the Routing Engine. You can also copy Junos OS from the Routing Engine onto a
PC Card, for example, to create a backup copy of upgrade software that you have
obtained from Juniper Networks. Instructions for copying software to a PC Card are
available at the Juniper Networks Support Web site (
http://www.juniper.net/support/ );
27 Copyright © 2010, Juniper Networks, Inc.
Chapter 3: TX Matrix Hardware Components Overview