Download e-book for iPad: 802.11 Wirelss LAN fundamentals by Pejman Roshan

By Pejman Roshan

ISBN-10: 1587050773

ISBN-13: 9781587050770

Master the fundamentals in designing, development, and handling a Cisco Aironet WLAN.

  • Master the fundamentals of instant LANs with this concise layout and deployment guide
  • Understand implementation matters for a number of environments together with vertical, SOHO, and firm networks
  • Learn layout and troubleshooting suggestion from real-world case studies

802.11 instant LAN Fundamentals provides networking engineers and IT pros the data they should layout, install, deal with, and troubleshoot their very own instant local-area networks (WLANs). beginning with an summary of the know-how and structure of WLANs, the e-book is going directly to clarify providers and complicated beneficial properties that such functions provides. most significantly, it presents useful layout suggestions and deployment recommendations.

Wireless LANs attach computing device networks through radio transmissions rather than conventional mobile strains or cables. advantages to those structures pass well past eliminating all of the cables and wires. Campus networks can develop geographically better whereas nonetheless keeping all their potency and velocity. also, price discount rates might be discovered while third-party mobile strains aren't any longer useful, saving the price of line condo and kit maintenance. eventually, flexibility in campus community layout raises considerably for the networking specialist, whereas the community accessibility and value raises for the person users.

802.11 instant LAN Fundamentals is helping networking execs notice those advantages by way of assisting them know the way to layout, construct, and preserve those networks, in addition to the right way to justify their price inside organizations.

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Getting back to the example, Vivian is ready to transmit. Her NAV timer has decremented to Wireless LANs connect computer networks via radio transmissions instead of traditional 0, and the PHY also indicates the medium is idle. Vivian selects a random backoff time phone lines or cables. Benefits to these systems go well beyond getting rid of all the cables between 0 and CW (in this case, CW is 7) and waits the selected number of slot times before and wires. Figure 2-7 illustrates this process, with a random backoff value of four slot efficiency and speed.

Gigabit Burst Mode NOTE Carrier extensions and burst mode are only necessary in half-duplex mode. In fullduplex mode, no contention exists, so there is no need to be concerned with slot time and, therefore, no need to be concerned with frame size. 11 Wireless LAN Fundamentals negotiation takes the guesswork out of determining device compatibility. In general, auto ByPejman Roshan, Jonathan Leary negotiation of speed and duplex is designed for twisted-pair media because fiber-optic devices do not support auto negotiation, nor is it practical for fiber-optic media types.

The AP receives the frame and waits a SIFS interval before sending an acknowledgment frame. • • Table of Contents Index Figure 2-9. 11 Wireless LAN Fundamentals ByPejman Roshan, Jonathan Leary Publisher: Cisco Press Pub Date: December 23, 2003 ISBN: 1-58705-077-3 Pages: 312 Master the basics in designing, building, and managing a Cisco Aironet WLAN.

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802.11 Wirelss LAN fundamentals by Pejman Roshan


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