Re-s-1800 routing engine boot sequence, Re-s-1800 routing engine leds, Table 8: routing engine leds – Juniper Networks MX480 User Manual

Page 59

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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.

Extractor clips—Used for inserting and extracting the Routing Engine.

Captive screws—Secure the Routing Engine in place.

NOTE:

For specific information about Routing Engine components (for

example, the amount of DRAM), issue the

show chassis routing-engine

command.

RE-S-1800 Routing Engine Boot Sequence

The router is shipped with the Junos OS preinstalled on the Routing Engine. There are
three copies of software:

One copy on the CompactFlash card in the Routing Engine.

One copy on the hard disk in the Routing Engine.

One copy on a USB flash drive that can be inserted into the slot on the Routing Engine
faceplate.

The Routing Engine boots from the storage media in this order: the USB device (if present),
then the CompactFlash card, then the Solid State Disk (SSD), then the LAN. Normally,
the router boots from the copy of the software on the CompactFlash card.

Related

Documentation

RJ-45 Connector Pinouts for MX Series Routing Engine AUX and CONSOLE Ports

RJ-45 Connector Pinouts for an MX Series Routing Engine ETHERNET Port

Replacing an MX960 Routing Engine

Supported Routing Engines by Chassis

RE-S-1800 Routing Engine LEDs

Each Routing Engine has four LEDs that indicate its status. The LEDs, labeled

MASTER

,

STORAGE

,

ONLINE

, and

OK/FAIL

, are located directly on the faceplate of the Routing

Engine.

Table 8 on page 35

describes the functions of the Routing Engine LEDs.

Table 8: Routing Engine LEDs

Description

State

Color

Label

Routing Engine is the Master.

On steadily

Blue

MASTER

Indicates activity on the SSD or Compact Flash.

Blinking

Green

STORAGE

35

Copyright © 2013, Juniper Networks, Inc.

Chapter 2: MX480 Hardware Components

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