Get up to speed on the latest Ethernet capabilities for building and maintaining networks for everything from homes and offices to data centers and server machine rooms. This thoroughly revised, comprehensive guide covers a wide range of Ethernet technologies, from basic operation to network management, based on the authors’ many years of field experience.
When should you upgrade to higher speed Ethernet? How do you use switches to build larger networks? How do you troubleshoot the system? This book provides the answers. If you’re looking to build a scalable network with Ethernet to satisfy greater bandwidth and market requirements, this book is indeed the definitive guide.
Examine the most widely used media systems, as well as advanced 40 and 100 gigabit Ethernet
Learn about Ethernet’s four basic elements and the IEEE standards
Explore full-duplex Ethernet, Power over Ethernet, and Energy Efficient Ethernet
Understand structured cabling systems and the components you need to build your Ethernet system
Use Ethernet switches to expand and improve network design
Delve into Ethernet performance, from specific channels to the entire network
Get troubleshooting techniques for problems common to twisted-pair and fiber optic systems
Charles Spurgeon is a senior technology architect at the University of Texas at Austin, where he works on a campus network system serving over 70,000 users in 200 buildings on two campuses. He has developed and managed large campus networks for many years, beginning at Stanford University, where he worked with a group that built the prototype Ethernet routers that became the founding technology for Cisco Systems. Charles, who attended Wesleyan University, lives in Austin, Texas, with his wife, Joann Zimmerman, and their cat Mona.
Joann Zimmerman is a former software engineer with a doctorate in art history from the University of Texas at Austin. She has written and documented compilers, software tools and network monitoring software, and been a creator of the build and configuration management process for several companies. The author of papers in software engineering and Renaissance art history, she currently she has multiple fantasy novels in process.
The animal on the cover of Ethernet: The Definitive Guide is an octopus. The octopus is a member of the class Cephalopoda, which also includes squid, cuttlefish, and nautili. However, unlike other cephalopods, the octopus’s shell is entirely absent. Species of octopus vary in size from under an inch (the Californian Enteroctopus micropyrsus) to 30 feet in length (the Giant Pacific Octopus dofleini). Like its cousin the squid, the octopus can release a noxious ink when disturbed. Octopodes vary in color from pink to brown, but are able to change their skin’s complexion when threatened using special pigment cells called chromatophores.
Octopodes catch their prey—primarily crabs, lobsters, and other smaller sea creatures—with their suckered tentacles. Many species are aided by a poison these sucker cups secrete; the venom of one Australian species is so potent that it can be deadly to humans. Octopodes are considered the most intelligent invertebrate species. They have both short- and long-term memory and have shown trial-and-error learning skills, retaining the problem-solving capabilities gained through experience. Their sucker cups are very sensitive; a sightless octopus can differentiate between various shapes and sizes of objectsjust as well as a sighted one.