T640 Re-C1800 Description; Re-C1800 Components; Re-C1800 Boot Order; Figure 20: Routing Engine C1800 (Re-C1800) - Juniper T640 Hardware Manual

T640 Core Router Hardware Guide

T640 RE-C1800 Description

RE-C1800 Components

RE-C1800 Boot Order

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RE-C1800 Components on page 42
RE-C1800 Boot Order on page 42
Each RE-C1800 (Figure 20 on page
CPU—Runs the Junos OS to maintain the routing tables and routing protocols.
DRAM—Provides storage for the routing and forwarding tables and for other Routing
Engine processes.
EEPROM—Stores the serial number of the Routing Engine.
Interfaces for management access—Provide information about Routing Engine status
to devices (console, laptop, or terminal server) connected to the management ports
located on the CIP.

Figure 20: Routing Engine C1800 (RE-C1800)

The faceplate of the RE-C1800 contains the following:
USB port—Provides a removable media interface through which you can install the
Junos OS manually. The Junos OS supports USB version 1.1 and version 2.0 devices.
CompactFlash card slot—Provides primary storage for software images, configuration
files, and microcode.
Two solid-state disk (SSD) slots—Provides secondary storage for log files, memory
dumps, and rebooting the system if the CompactFlash card fails.
NOTE:
DISK2
Reset button—Reboots the Routing Engine when pressed.
Offline button—Takes the Routing Engine offline when pressed.
Four LEDs— CF , DISK1 , DISK2
Extractor clips—Control the locking system that secures the Routing Engine.
The RE-C1800 Routing Engine boots from the storage media in this order: the USB device,
then the CompactFlash card (if present), then
42) consists of the following components:
is not currently supported.
, and ONLINE .
, then the LAN.
DISK1
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