By Pejman Roshan
Master the fundamentals in designing, construction, and handling a Cisco Aironet WLAN.
- Master the fundamentals of instant LANs with this concise layout and deployment guide
- Understand implementation concerns for various environments together with vertical, SOHO, and firm networks
- Learn layout and troubleshooting recommendation from real-world case studies
802.11 instant LAN Fundamentals provides networking engineers and IT execs the data they should layout, install, deal with, and troubleshoot their very own instant local-area networks (WLANs). beginning with an outline of the expertise and structure of WLANs, the publication is going directly to clarify companies and complex positive factors that such functions supplies. most significantly, it presents useful layout assistance and deployment recommendations.
Wireless LANs attach machine networks through radio transmissions rather than conventional mobile traces or cables. advantages to those structures move way past removing the entire cables and wires. Campus networks can develop geographically higher whereas nonetheless preserving all their potency and pace. also, rate discount rates might be learned whilst third-party mobilephone strains are not any longer worthwhile, saving the price of line condo and gear 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 discover those advantages by means of aiding them know how to layout, construct, and continue those networks, in addition to the way to justify their worth inside of organizations.
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Note that stations only update the NAV when the duration field value received is greater than what is currently stored in their NAV. Using the same example, if Vivian has a NAV of 10 milliseconds, she does not update her NAV if she receives a frame with a duration of 5 milliseconds. She updates her NAV if she receives a frame with a duration of 20 milliseconds. 11 networks is DCF, a medium access mechanism based on the CSMA/CA access method. To describe DCF operation, we first define • TableFigure of Contents some concepts.
3x, which specifies a new methodology for transmission in Ethernet networks known as full-duplex operation. Full-duplex operation allows a station to send and receive frames simultaneously, allowing greater use of the medium and higher overall throughput (see Figure 1-8). Fullduplex operation significantly changes the requirements placed on end stations, however. Figure 1-8. 11 Wireless LAN Fundamentals ByPejman Roshan, Jonathan Leary Publisher: Cisco Press Pub Date: December 23, 2003 ISBN: 1-58705-077-3 Pages: 312 Full-duplex operation works only in a point-to-point environment.
Ironically, only fiber-based interfaces can take recommendations. advantage of additional distances (as 100BASE-FX does) because twisted-pair deployments Wireless are distance-limited LANs connect by computer the physical networks medium viaitself radio and transmissions not the network instead diameter of traditional imposed by phone lines Ethernet or Fast or cables. Ethernet Benefits time to slots. these systems go well beyond getting rid of all the cables and wires. Campus networks can grow geographically larger while still retaining all their efficiency and speed.
802.11 Wirelss LAN fundamentals by Pejman Roshan