Juniper-networks MX480 Manual do Utilizador Página 58

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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
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