M320 Routing Engine 1600 Description; Figure 11: Routing Engine 1600 - Juniper M320 Hardware Manual

M320 Multiservice Edge Router Hardware Guide
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M320 Routing Engine 1600 Description

26
M320 Connector Interface Panel (CIP) Description on page 13
M320 Routing Engine Description on page 24
Replacing an M320 Routing Engine on page 216

Figure 11: Routing Engine 1600

Each Routing Engine (shown in
CPU—Runs Junos OS to maintain the router's routing tables and routing protocols. It
has a Pentium-class processor.
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 inaccessible from outside the router.
Hard disk—Provides secondary storage for log files, memory dumps, and rebooting the
system if the CompactFlash card fails.
PC card slots—Accept removable PC cards, which store software images for system
upgrades.
LED—Indicates disk activity for the internal IDE interface. It does not necessarily indicate
routing-related activity.
Interfaces for out-of-band management access—Provide information about
Routing Engine status to devices (console, laptop, or terminal server) that can be
attached to access ports located on the Connector Interface Panel (CIP).
Each Routing Engine has one 10/100-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.
Figure 11 on page 26) consists of the following components:
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