By Charles E. Spurgeon, Joann Zimmerman
Wake up to hurry at the most recent Ethernet features for construction and conserving networks for every little thing from houses and places of work to facts facilities and server computer rooms. This completely revised, complete advisor covers a variety of Ethernet applied sciences, from uncomplicated operation to community administration, according to the authors’ a long time of box experience.
When for those who improve to raised velocity Ethernet? How do you employ switches to construct higher networks? How do you troubleshoot the approach? This ebook presents the solutions. If you’re seeking to construct a scalable community with Ethernet to fulfill higher bandwidth and marketplace standards, this e-book is certainly the definitive guide.
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Additional info for Ethernet: The Definitive Guide (2nd Edition)
This is the layer that transmits and receives frames and recognizes link addresses. The parts of the Ethernet standard that describe the frame format and Media Access Control protocol belong to this layer. Network layer (Layer 3) Establishes communication from station to station across an internetwork, which is composed of a number of interconnected network systems. This layer provides a level of independence from the lower two layers by establishing higher-level functions and procedures for exchanging data between computers across multiple networks.
The network hardware—which includes the Ethernet interfaces, media cables, and so on—exists simply to move Ethernet frames between computers, or stations. A device connected to the network may be a desktop computer, a printer, or anything else with an Ethernet interface in it. For that reason, the Ethernet standard uses the more general term “station” to describe the networked device, and so will we. The bits in the Ethernet frame are formed up in specified fields. Figure 3-1 shows the basic frame fields.
However, to understand the Ethernet standards and Ethernet operation, it’s useful to know how the original half-duplex system functions. It’s still possible for a station to use half-duplex mode when connec‐ ted to a switch port at 10 and 100 Mb/s over a twisted-pair cable. However, higher-speed media systems support full-duplex mode only. The way the MAC protocol works is fairly simple. Each Ethernet-equipped device op‐ erates independently of all other stations on the network; there is no central controller.