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JUNOS high availability

Author: James Sonderegger
Publisher: [Sebastopol, Calif.] : O'Reilly Media, 2009.
Edition/Format:   eBook : Document : English : 1st edView all editions and formats
Summary:
Whether your network is a complex carrier 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,  Read more...
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Genre/Form: Electronic books
Additional Physical Format: Print version:
JUNOS high availability.
Sebastopol, Calif. : O'Reilly Media, Inc., ©2009
(OCoLC)318413924
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: James Sonderegger
ISBN: 9780596805449 0596805446 9781449391928 1449391923 9781449379445 1449379443
OCLC Number: 460638538
Description: 1 online resource (xxvii, 656 pages) : illustrations
Contents: Table of Contents; Preface; What Is High Availability?; How to Use This Book; What's in This Book?; Part I, JUNOS HA Concepts; Part II, JUNOS HA Techniques; Part III, Network Availability; Part IV, Appendixes; Conventions Used in This Book; Using Code Examples; Safari® Books Online; Comments and Questions; Acknowledgments; Part I. JUNOS HA Concepts; Chapter 1. High Availability Network Design Considerations; Why Mention Cost in a Technical Book?; A Simple Enterprise Network; Redundancy and the Layered Model; Redundant Site Architectures; Redundant Component Architectures. Combined Component and Site-Redundant ArchitecturesRedundant System Architectures; Combined System- and Site-Redundant Architectures; Combined System- and Component-Redundant Architectures; Combined System-, Component-, and Site-Redundant Architectures; What Does It All Mean?; Chapter 2. Hardware High Availability; Divide and Conquer; The Brains: The Routing Engine; RE comparison; M Series; MX Series; T Series; EX Series; SRX Series; The Brawn: The Packet Forwarding Engine; Hardware components; J Series; Model comparison; M Series; MX Series; T Series; EX Series; Packet Flows; M Series. MX SeriesT Series; EX Series; SRX Series; J Series; Redundancy and Resiliency; M Series; MX Series; T Series; J Series; SRX Series; EX Series; Chapter 3. Software High Availability; Software Architecture; Stable Foundations; Modular Design; Daemons; One OS to Rule Them; Single OS; Forks and trains; No reeducation through labor; One Release Architecture; Automation of Operations; Configuration Management; Application Programming Interfaces; Scripting; Commit scripts; Operation scripts; Event policy scripts; Chapter 4. Control Plane High Availability; Under the Hood of the Routing Engine. Routing Update ProcessStep 1: Verify that the RE and PFEs are up; Step 2: Verify that the socket is built; Step 3: Verify that there is a valid TNP communication; Step 4: Verify that BGP adjacencies are established; Step 5: Verify that BGP updates are being received; Step 6: Verify that route updates are processed correctly; Step 7: Verify that the correct next hop is being selected; Step 8: Verify that the correct copy of the route is being selected for kernel update; Step 9: Verify that the correct copy of the route is being sent to the forwarding plane. Step 10: Verify that the correct copy of the route is being installed into the forwarding plane on the PFE complexGraceful Routing Engine Switchover; Implementation and Configuration; Configuration examples; Troubleshooting GRES; Graceful Restart; Graceful Restart in OSPF; Configuration; Immunizing against topology change; Graceful Restart in IS-IS; Configuration; Graceful Restart in BGP; Restarting the node; Peers; Configuration; MPLS Support for Graceful Restart; Graceful Restart in RSVP; Configuration; Graceful Restart in LDP; Configuration; Graceful Restart in MPLS-Based VPNs.
Responsibility: James Sonderegger [and others].

Abstract:

Whether your network is a complex carrier 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, six, or even seven nines -- or 99.99999% of the time. Rather than focus on "greenfield" designs, the authors explain how to intelligently modify multi-vendor networks. You'll learn to.

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