Juniper CBL-M40-PWR-AU Manuel D’Utilisation

Maintain the Routing Engine

M40 Internet Router Hardware Guide

174

Maintain the Routing Engine

To maintain the Routing Engine, perform the following procedures on a regular basis:

Check the LCD and the Routing Engine LEDs on the craft interface. The LCD reports

Routing Engine status during normal operation and describes the cause of failures when
they occur. The green LED labeled OK lights steadily when the Routing Engine is
functioning normally. For more information about the LEDs and LCD, see “Craft
Interface” on page 17.

Issue the CLI

show chassis routing-engine

command to check the status of the Routing

Engine:

user@host> show chassis routing-engine

Routing Engine status:

Temperature 25 degrees C / 77 degrees F

DRAM 256 MB

Memory utilization 32 percent

CPU utilization:

User 0 percent

Background 0 percent

Kernel 0 percent

Interrupt 0 percent

Idle 99 percent

Model RE-1.0

Start time 2003-05-22 11:40:03 PDT

Uptime

21 hours, 15 minutes, 39 seconds

Load averages: 1 minute 5 minute 15 minute

0.00 0.00 0.00

For further description of the output from the command, see the JUNOS Internet Software
Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management.

Replace the Routing Engine Housing

The Routing Engine resides in a metal housing in the rear of the chassis, below the fan tray
(see Figure 2). The housing is not a FRU, but you must remove it from the chassis to access
the Routing Engine and LS-120 drive. The Routing Engine housing weighs approximately
17 lb (8 kg).

To remove and install the Routing Engine housing, perform the following procedures:

Remove the Routing Engine Housing on page 175

Install the Routing Engine Housing on page 175