Datasheet

M7i Routing Engine RE-B-1800 Description
Figure 14: Routing Engine RE-B-1800
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The Routing Engine RE-B-1800 has the following major components:
•
CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It
has Intel’s single core Jasper Forest processor.
•
USB port—Provides a removable media interface through which you can install the
Junos OS manually. Junos OS supports USB version 2.0.
•
DRAM—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 CompactFlash card is field-replaceable.
•
Solid-state Disk (SSD)—Provides secondary storage for log files and memory dumps,
and can reboot the system if the CompactFlash card fails. SSD is front-pluggable and
hot-swappable.
•
Interface ports—The AUX, CONSOLE, and MGMT ports provide access to management
devices. Each Routing Engine has one 10/100/1000-Mbps Ethernet port for connecting
to a management network, and two asynchronous serial ports—one for connecting to
a console and one for connecting to a modem or other auxiliary device.
•
EEPROM—Stores the serial number of the Routing Engine.
•
Reset button—Reboots the Routing Engine when pressed.
•
Online/Offline button—Takes the Routing Engine online or offline when pressed.
•
Real-time clock—Provides real-time integrated clock with batter backup for data
retention.
•
Extractor handle—Used for inserting and extracting the Routing Engine.
•
Captive screws—Secure the Routing Engine in place.
•
Four LEDs—A green LED labeled STORAGE, a blue LED labeled MASTER, a red LED
labeled FAIL, and a green LED labeled ONLINE indicate Routing Engine status.
NOTE: For specific information about Routing Engine components (for
example, the capacity of the SSD), issue the show chassis routing-engine
command.
21Copyright © 2012, Juniper Networks, Inc.
Chapter 2: M7i Hardware Components