Juniper Networks MX480 - Manual (Page 58)

RE-S-1800 Routing Engine Description for MX Series
Figure 17 on page 34 shows the Routing Engine 1800.
Figure 17: RE-S-1800 Front View
g006040
USB
port Reset
button
Extractor
clip
Extractor
clip
Console
port
Auxiliary
port Ethernet
port SSD
slot 2 SSD
slot 1
• RE-S-1800 Routing Engine Components on page 34
• RE-S-1800 Routing Engine Boot Sequence on page 35
RE-S-1800 Routing Engine Components
Figure 18 on page 34 shows the RE-S-1800 Routing Engine.
g006040
USB
port Reset
button
Extractor
clip
Extractor
clip
Console
port
Auxiliary
port Ethernet
port SSD
slot 2 SSD
slot 1
Each Routing Engine consists of the following components:
• CPU—Runs Junos OS to maintain the router's routing tables and routing protocols..
• DRAM—Provides storage for the routing and forwarding tables and for other Routing
Engine processes.
• USB port—Provides a removable media interface through which you can install the
Junos OS manually. Junos OS supports USB version 1.0.
• CompactFlash card—Provides primary storage for software images, configuration files,
and microcode. The CompactFlash card is fixed and is inaccessible from outside the
router.
• Solid State Disk (SSD)—Provides secondary storage for log files, memory dumps, and
rebooting the system if the CompactFlash card fails.
• Interface ports—The AUX , CONSOLE , and ETHERNET provide access to management
devices. Each Routing Engine has one 10/100-Mbps Ethernet port for connecting to a
Copyright © 2013, Juniper Networks, Inc. 34
MX480 3D Universal Edge Router Hardware Guide