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™.
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
What Does It All Mean?
Chapter 2 Hardware High Availability
Divide and Conquer
Redundancy and Resiliency
Chapter 3 Software High Availability
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
MPLS Support for Graceful Restart
Non-Stop Active Routing
Choosing Your High Availability Control Plane Solution
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.
The animals on the cover of JUNOS High Availability are Bohemian waxwings (Bombycilla garrulus). The generic name Bombycilla, Latin for "silk tail," describes the bird's sleek, soft plumage. Waxwing refers to the red tips of the wing feathers that resemble drops of wax. Three species of waxwings exist: Japanese, Cedar, and Bohemian. These species are fairly similar in appearance and are primarily distinguished by geography: the Japanese waxwing lives exclusively in Asia; the Cedar inhabits North America; and the Bohemian--true to its name--travels throughout the sub-Arctic continents in nomadic flocks, particularly in winter as it searches for berries. The two latter waxwings have the most in common, although Cedars are more prevalent in the northeastern United States, whereas Bohemians are numerous in western Canada and the Rocky Mountain region. All three waxwings subsist on a diet of fruit and insects.
Another difference between the species is seen in the edges of the wing feathers: Bohemian and Japanese waxwings have white edges, while Cedars do not. At six to nine inches long, the Bohemian is also larger and grayer than the Cedar, although both have yellow tail feather tips and a pointed crest. The Bohemian waxwing's call is extremely similar to the Cedar's, most likely because the Bohemian has no territory to defend and thus has never needed to develop a true song.
The cover image is from the Dover Pictorial Archive. The cover font is Adobe ITC Garamond. The text font is Linotype Birka; the heading font is Adobe Myriad Condensed; and the code font is LucasFont's TheSansMonoCondensed.