By Gilbert Held

ISBN-10: 0470844760

ISBN-13: 9780470844762

Ethernet Networks, Fourth version, offers every little thing you want to understand to devise, enforce, deal with and improve Ethernet networks.
* increase your abilities in applying Ethernet hubs, switches, and routers.
* easy methods to arrange and function a instant neighborhood region community (LAN).
* become aware of how one can expand a stressed out Ethernet through instant LANs.
* comprehend cabling criteria and the function of subsequent (Near finish Crosstalk), FEXT (Far finish Crosstalk) and different transmission parameters.
* benefit from Gilbert Held's suggestions and tips on bettering security
... and masses more.

This crucial source positive aspects up to date insurance of:
* instant Ethernet (IEEE802.11 standards)
* 10Gbps Ethernet
* Firewalls in either a stressed out and instant environment
* The operation of recent models of Windows(r) on Ethernet LANs
* using LAN switches at and above layer 2 within the ISO reference model
* Copper and fiber optic cable to move excessive velocity Ethernet

Network planners, directors, and procedure engineers operating with Ethernet networks will locate Ethernet Networks, Fourth version, a useful software for enforcing, updating, and dealing with their networks

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Additional info for Ethernet Networks: Design, Implementation, Operation, Management

Sample text

10 illustrates the flow of light through a step-index, multimode fiber. In a graded-index multimode fiber, the refractive index is varied from the center to the edge of the core to minimize modal dispersion. 10 illustrates the flow of light through a graded-index, multimode fiber. This type of fiber minimizes model dispersion and supports higher data rates than a step-index multimode optical fiber. A third type of optical fiber has a relatively small core diameter, typically between 7 and 12 microns (10−6 meters).

Transmission Medium The transmission medium used in a local area network can range in scope from twisted-pair wire, such as is used in conventional telephone lines, to coaxial cable, fiber-optic cable, and electromagnetic waves such as those used by FM radio and infrared. Each transmission medium has a number of advantages and disadvantages. The primary differences between media are their cost and ease of installation; the bandwidth of the cable, which may or may not permit several transmission sessions to occur simultaneously; the maximum speed of communications permitted; and the geographic scope of the network that the medium supports.

The three access methods primarily employed in local area networks are carrier-sense multiple access/collision detection (CSMA/CD), carrier-sense multiple access/collision avoidance (CSMA/CA), and token passing. Each of these access methods is uniquely structured to address the previously mentioned collision and data-destination problems. A fourth access method, referred to as demand priority, is applicable to a high-speed Ethernet network referred to as 100VG-AnyLAN. Through the use of a demand-priority access method you can support either existing Ethernet CSMA/CD or token passing networks at 100 Mbps.

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Ethernet Networks: Design, Implementation, Operation, Management by Gilbert Held


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