JUNOS High Availability

JUNOS High Availability

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Network outages can be deadly, whether your network is a complex carrier network or just a few machines supporting a small enterprise. "JUNOS High Availability" will help you build reliable and resilient networks that include Juniper Networks devices. With this book's valuable advice on software upgrades, scalability, remote network monitoring and management, high-availability protocols such as VRRP, and more, you'll have your network uptime at the five nines, or 99.999 percent of the time. Instead of focusing on 'greenfield' designs, the authors explain how you can intelligently modify multi-vendor networks. By looking at how existing protocols and platforms are currently used, and adapting new devices to them, you can deploy continuous systems even when reporting scheduled downtime.
With this book, you will learn how to: upgrade routing engine software painlessly; manage network equipment with Best Common Practices; integrate routers and switches from multiple vendors in a mature network; enhance scalability by adjusting network designs and protocols; combine the IGP and BGP networks of two merging companies; perform network audits; identify JUNOScripting techniques to maintain high availability; secure network equipment against breaches, and contain DoS attacks. Automate network configuration through specific strategies and tools. "JUNOS High Availability" will save you time and money no matter what kind of network you have. Written by four system engineers with vast expertise in maintaining continuous systems, this book is a core part of the Juniper Networks Technical Library.
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Product details

  • Paperback | 656 pages
  • 178 x 232 x 37.85mm | 889.04g
  • Sebastopol, United States
  • English
  • Illustrations
  • 0596523041
  • 9780596523046
  • 824,364

Table of contents

From the contents:

JUNOS HA Concepts

Chapter 1 High Availability Network Design


Why Mention Cost in a Technical Book?

A Simple Enterprise Network

Redundancy and the Layered Model

What Does It All Mean?

Chapter 2 Hardware High Availability

Divide and Conquer Packet Flows

Redundancy and Resiliency

Chapter 3 Software High Availability

Software Architecture

One OS to Rule Them

Automation of Operations

Chapter 4 Control Plane High Availability

Under the Hood of the Routing Engine

Graceful Routing Engine Switchover

Graceful Restart

MPLS Support for Graceful Restart

Non-Stop Active Routing

Non-Stop Bridging

Choosing Your High Availability Control Plane Solution

Chapter 5 Virtualization for High Availability

Virtual Chassis in the Switching Control Plane

Control System Chassis

JUNOS HA Techniques

Chapter 6 JUNOS Pre-Upgrade Procedures

JUNOS Package Overview

Pre-Upgrade Verifications

Moving Services Away from a Router

Chapter 7 Painless Software Upgrades


Software Upgrades with Unified ISSU

Software Upgrades Without Unified ISSU

Snapshots Redux

Image Upgrade Tweaks and Options

J Series Considerations

Chapter 8 JUNOS Post-Upgrade Verifications

Post-Upgrade Verification

Fallback Procedures


Chapter 9 Monitoring for High Availability

I Love Logs

Simple Network Management Protocol

Traffic Monitoring

Chapter 10 Management Interfaces

A GUI for Junior Techs

Mid-Level Techs and the CLI

Deep Magic for Advanced Techs

Chapter 11 Management Tools


Juniper AIS

Partner Tools

Chapter 12 Managing Intradomain Routing Table


Address Allocation

Address Aggregation

Chapter 13 Managing an Interdomain Routing


Enterprise Size and Effective Management

Border Gateway Protocol (BGP)

Network Availability

Chapter 14 Fast High Availability Protocols

Protocols for Optical Networks

Rapid Spanning Tree Protocol

Interior Gateway Protocols

Bidirectional Forwarding Detection

Virtual Router Redundancy Protocol

MPLS Path Protection

Chapter 15 Transitioning Routing and Switching to a Multivendor


Industry Standards

Multivendor Architecture for High Availability

Routing Protocol Interoperability Chapter 16 Transitioning MPLS to a Multivendor


Multivendor Reality Check

MPLS Signaling for High Availability

MPLS Transition Case Studies

Chapter 17 Monitoring Multivendor Networks

Are You In or Out?

SNMP Configuration

Syslog Configuration

Configuration Management

Configuration for AAA


What IS Normal?

Chapter 18 Network Scalability

Hardware Capacity

Network Scalability by Design

Chapter 19 Choosing, Migrating, and Merging Interior Gateway Protocols

Choosing Between IS-IS and OSPF

Migrating from One IGP to Another

Merging Networks Using a Common IGP

Chapter 20 Merging BGP Autonomous Systems

Planning the Merge

Merging Our ASs Off

Monitoring the Merge

Chapter 21 Making Configuration Audits Painless

Why Audit Configurations?

Configuration Auditing 101

Auditing Configurations

Performing and Updating Audits

Chapter 22 Securing Your Network Equipment Against Security Breaches

Authentication Methods

Hardening the Device

Firewall Filters

Chapter 23 Monitoring and Containing DoS Attacks in Your Network

Attack Detection

Taking Action When a DoS Attack Occurs

Attack Prevention

Gathering Evidence

Chapter 24 Goals of Configuration Automation

CLI Configuration Automation

Automating Remote Configuration
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About Orin Blomberg

James Sonderegger (JNCIE-M #130, JNCIS-FWV, JNCIS-ER, and Juniper Certified Instructor) holds a MS in IT Management and is a Resident Engineer Manager on Juniper Networks' Professional Services Team. James spent five years as an Engineer in Residence for Federal customers and has been in the networks industry for the last twelve years. His former employers include The Analysis Corporation (TAC), Ericsson IP Infrastructure, and Automated Data Processing. James was a co-author on "Juniper Networks Reference Guide. Routing, Configuration, and Architecture", ISBN 0201775921, Addison-Wesley Publishing, 2002. Orin Blomberg (CCNP, CCSP, CCIP, CCVP, CCDP, JNCIS-M, JNCIS-FWV, JNCIS-ER, JNCIA-IDP, JNCI) is the technical lead for SSL VPNs and remote access at the Washington State Department of Information Service. His primary responsibilities include providing remote access and secure connectivity for state agencies, county, city governments, and tribal nation governments, as well as connectivity to federal agencies. His former employers include General Dynamics C4 Systems, Ericsson IP Infrastructure, and the US Army. Kieran Milne (JNCIE-M #380, JNCIS-ER, JNCIA-WX, JNCIA-EX, JNCIA-E, JNCI, CCNA, Nortel NCTS) is a training developer and technical trainer within the Education Services department at Juniper Networks. With over ten years of experience in the networking industry, Kieran has taught all over the world, in both corporate and college settings. Before joining Juniper Networks, Kieran spent time at Nortel Networks and Alcatel. He is the author of the O'Reilly book JUNOS Networking Essentials, and contributes to exam development for the Juniper Networks Technical Certification Program. Kieran lives and works out of Canada. Senad Palislamovic (JNCIE-M #145 and JNCIS-E) is a Professional Services Engineer at Juniper Networks, where he consults, designs, and implements MPLS enabled NGEN services for largest global ASPs and financial networks. He has also worked as a JTAC Engineer troubleshooting major ISPs' networks. Before JTAC, Senad held various network positions at Weber State University where he designed and implemented scalable network solutions. Senad holds B.S Degree in Telecommunications and IS&T from Weber State University and has over 10 years of experience in various enterprise and ISP networking technologies. He lives in New York with his wife Samera.
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