Network Router User Manual

Power Supply LED ..................................................................................22
Fan Tray ........................................................................................................23
Cable Management System ...........................................................................23
Chapter 3 JUNOS Internet Software Overview 25
Routing Engine Software Components ..........................................................25
Routing Protocol Process ........................................................................26
IPv4 Routing Protocols .....................................................................26
IPv6 Routing Protocols .....................................................................28
Routing and Forwarding Tables ........................................................29
Routing Policy ..................................................................................29
VPNs .......................................................................................................30
Interface Process ....................................................................................31
Chassis Process .......................................................................................31
SNMP and MIB II Processes ....................................................................31
Management Process ..............................................................................31
Routing Engine Kernel ............................................................................31
Tools for Accessing and Configuring the Software .........................................32
Tools for Monitoring the Software .................................................................32
Software Upgrades ........................................................................................32
Chapter 4 System Architecture Overview 33
Packet Forwarding Engine Architecture .........................................................33
Data Flow Through the Packet Forwarding Engine ..................................34
Routing Engine Architecture ..........................................................................35
Routing Engine Functions .......................................................................36
Part 2 Initial Installation
Chapter 5 Preparing for Router Installation 41
Site Preparation Checklist ..............................................................................41
Rack Requirements .......................................................................................42
Rack Size and Strength ...........................................................................42
Spacing of Mounting Holes .....................................................................44
Connection to Building Structure ............................................................44
Clearance Requirements for Airflow and Hardware Maintenance ..................44
Chapter 6 Unpacking the Router 47
Tools and Parts Required ..............................................................................47
Unpacking the Router ....................................................................................47
vi ■ Table of Contents
M10i Internet Router Hardware Guide