Juniper™ Networks
Certified Internet Associate
Study Guide
by Joseph M. Soricelli with John L. Hammond, Galina Diker Pildush,
Thomas E. Van Meter, and Todd M. Warble
This book was originally developed by Juniper Networks Inc. in conjunction with
Sybex Inc. It is being offered in electronic format because the original book
(ISBN: 0-7821-4071-8) is now out of print. Every effort has been made to remove the original publisher's name and references to the original bound book and its accompanying CD. The original paper book may still be available in used book stores or by contacting, John Wiley & Sons, Publishers. www.wiley.com.
Copyright © 2003-6 by Juniper Networks Inc. All rights reserved.
This publication may be used in assisting students to prepare for a Juniper
JNCIA exam but Juniper Networks Inc. cannot warrant that use of this publication will ensure passing the relevant exam.
Contents at a Glance
Introduction
xvii xxxiii Assessment Test
Chapter 1
The Components of a Juniper Networks Router
1
Chapter 2
Interfaces
Chapter 3
Protocol-Independent Routing
107
Chapter 4
Routing Policy
149
Chapter 5
The Routing Information Protocol (RIP)
195
Chapter 6
Open Shortest Path First (OSPF)
229
Chapter 7
Intermediate System to Intermediate System (IS-IS)
275
Chapter 8
Border Gateway Protocol (BGP)
321
Chapter 9
Multicast
373
Chapter 10
Firewall Filters
429
Chapter 11
Multiprotocol Label Switching (MPLS)
473
61
Glossary
533
Index
569
Contents
Introduction
xvii
Assessment Test
Chapter
1
xxxiii
The Components of a Juniper Networks Router
1
Juniper Networks Router Design
Routing Engine Overview
Packet Forwarding Engine Overview
Routing Engine Components
Software Architecture
Command-Line Interface
Manipulating Files on the Router
Routing Engine Redundancy
Packet Forwarding Engine Components
Embedded OS