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

M40 Internet Router Hardware Guide

iv

Craft Interface ...................................................................................................... 17

FPC LEDs and Offline Button......................................................................... 18
Alarm Relay Contacts, LEDs, and Cutoff Button............................................. 18
LCD ...............................................................................................................19
Routing Engine LEDs and Interface Ports ...................................................... 19

Power Supplies ..................................................................................................... 20

AC Power Supply........................................................................................... 21
DC Power Supply........................................................................................... 22
Power Supply LEDs ....................................................................................... 22

Cooling System..................................................................................................... 23

Cooling System Components......................................................................... 23
Airflow through the Chassis ........................................................................... 24

Cable Management System .................................................................................. 24

JUNOS Internet Software Overview

........................................................... 25

Routing Engine Software Components ................................................................. 26

Routing Protocol Process ............................................................................... 26

Routing Protocols ................................................................................... 26
Routing and Forwarding Tables.............................................................. 28
Routing Policy ........................................................................................28

Interface Process ........................................................................................... 29
SNMP and MIB II Processes ........................................................................... 29
Management Process .................................................................................... 29
Routing Engine Kernel................................................................................... 29

Tools for Accessing and Configuring the Software ................................................ 30
Software Monitoring Tools .................................................................................... 30
Software Upgrades ............................................................................................... 30

System Architecture Overview

..................................................................... 31

Packet Forwarding Engine Architecture ................................................................ 32

Data Flow through the Packet Forwarding Engine ......................................... 33

Routing Engine Architecture ................................................................................. 33

Routing Engine Functions.............................................................................. 34