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JUNOS High Availability
Best Practices for High Network Uptime
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- Table of Contents
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Preface
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Part I. JUNOS HA Concepts
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Chapter 1. High Availability Network Design
Considerations
- Why Mention Cost in a Technical Book?
- A Simple Enterprise Network
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Redundancy and the Layered Model
- Redundant Site Architectures
- Redundant Component Architectures
- Combined Component and Site-Redundant Architectures
- Redundant 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?
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Chapter 2. Hardware High Availability
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Chapter 3. Software High Availability
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Chapter 4. Control Plane High Availability
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Under the Hood of the Routing Engine
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Routing Update Process
- Step 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 complex
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Routing Update Process
- + 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
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Under the Hood of the Routing Engine
- + Chapter 5. Virtualization for High Availability
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Chapter 1. High Availability Network Design
Considerations
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Part II. JUNOS HA Techniques
- + Chapter 6. JUNOS Pre-Upgrade Procedures
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Chapter 7. Painless Software Upgrades
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Chapter 8. JUNOS Post-Upgrade Verifications
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Chapter 9. Monitoring for High Availability
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Chapter 10. Management Interfaces
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Chapter 11. Management Tools
- + Chapter 12. Managing Intradomain Routing Table Growth
- + Chapter 13. Managing an Interdomain Routing Table
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Part III. Network Availability
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Chapter 14. Fast High Availability Protocols
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Chapter 15. Transitioning Routing and Switching to a Multivendor
Environment
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Chapter 16. Transitioning MPLS to a Multivendor
Environment
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Chapter 17. Monitoring Multivendor Networks
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Chapter 18. Network Scalability
- + Chapter 19. Choosing, Migrating, and Merging Interior Gateway Protocols
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Chapter 20. Merging BGP Autonomous Systems
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Chapter 21. Making Configuration Audits Painless
- + Chapter 22. Securing Your Network Equipment Against Security Breaches
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Chapter 23. Monitoring and Containing DoS Attacks in Your Network
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Chapter 24. Goals of Configuration Automation
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Chapter 25. Automated Configuration Strategies
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Chapter 14. Fast High Availability Protocols
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Part IV. Appendixes
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Appendix A. System Test Plan
- + Appendix B. Configuration Audit
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Appendix C. High Availability Configuration Statements
- Routing Engine and Switching Control Board
- cfeb
- description
- failover on-disk-failure
- failover on-loss-of-keepalives
- failover other-routing-engine
- feb (Creating a Redundancy Group)
- feb (Assigning a FEB to a Redundancy Group)
- keepalive-time
- no-auto-failover
- redundancy
- redundancy-group
- routing-engine
- sfm
- ssb
- Graceful Routing Engine Switchover
- graceful-switchover
- Nonstop Bridging Statements
- nonstop-bridging
- Nonstop Active Routing
- commit synchronize
- nonstop-routing
- traceoptions
- Graceful Restart
- disable
- graceful-restart
- helper-disable
- maximum-helper-recovery-time
- maximum-helper-restart-time
- maximum-neighbor-reconnect-time
- maximum-neighbor-recovery-time
- no-strict-lsa-checking
- notify-duration
- reconnect-time
- recovery-time
- restart-duration
- restart-time
- stale-routes-time
- traceoptions
- VRRP
- accept-data
- advertise-interval
- authentication-key
- authentication-type
- bandwidth-threshold
- fast-interval
- hold-time
- inet6-advertise-interval
- interface
- preempt
- priority
- priority-cost
- priority-hold-time
- route
- startup-silent-period
- traceoptions
- track
- virtual-address
- virtual-inet6-address
- virtual-link-local-address
- vrrp-group
- vrrp-inet6-group
- Unified In-Service Software Upgrade (ISSU)
- no-issu-timer-negotiation
- traceoptions
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Appendix A. System Test Plan
- Index
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 adapt new devices to existing protocols and platforms, and deploy continuous systems even when reporting scheduled downtime. JUNOS High Availability will help you save time and money.
Manage network equipment with Best Common Practices
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
This book is a core part of the Juniper Networks Technical Library™.
Test the closed alpha on paperc.com
Book Details
Authors
James Sonderegger, Orin Blomberg, Kieran Milne, and Senad Palislamovic
Categories
Computers > Networking > Vendor Specific
Publishers
Publication year : 2009
License: All rights reserved ©
Times read: 936
