By Matthew Gast
As we know by means of now, instant networks supply many merits over mounted (or stressed) networks. prime on that record is mobility, seeing that going instant frees you from the tether of an Ethernet cable at a table. yet that's simply the top of the cable-free iceberg. instant networks also are extra versatile, speedier and more uncomplicated that you should use, and more cost-effective to installation and maintain.
The de facto typical for instant networking is the 802.11 protocol, consisting of wireless (the instant normal referred to as 802.11b) and its speedier cousin, 802.11g. With easy-to-install 802.11 community on hand in every single place you switch, the alternative turns out basic, and plenty of humans dive into instant computing with much less idea and making plans than they'd provide to a stressed community. yet it's clever to be conversant in either the functions and hazards linked to the 802.11 protocols. And 802.11 instant Networks: The Definitive Guide, 2d variation is the appropriate position to start.
This up-to-date variation covers every thing you'll ever want to know approximately instant know-how. Designed with the procedure administrator or severe domestic consumer in brain, it's a no-nonsense consultant for establishing 802.11 on home windows and Linux. one of the wide selection of subject matters coated are discussions on:
* deployment issues
* community tracking and function tuning
* instant safeguard matters
* tips on how to use and choose entry issues
* community tracking necessities
* instant card configuration
* protection matters distinctive to instant networks
With instant expertise, the benefits to its clients are certainly ample. businesses not need to take care of the effort and fee of wiring structures, and families with a number of desktops can steer clear of fights over who's on-line. And now, with 802.11 instant Networks: The Definitive Guide, 2d version, you could combine instant expertise into your present infrastructure with the maximum self assurance.
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Additional resources for 802.11 Wireless Networks: The Definitive Guide (2nd Edition)
In nearly all commercially successful products, Ethernet is used as the backbone network technology. 11 network must be converted to another type of frame for delivery to the rest of the world. Devices called access points perform the wireless-to-wired bridging function. ) Wireless medium To move frames from station to station, the standard uses a wireless medium. 11 MAC. Initially, two radio frequency (RF) physical layers and one infrared physical layer were standardized, though the RF layers have proven far more popular.
Many 7 FCC rules are adopted by other countries throughout the Americas. European allocation is performed by CEPT's European Radiocommunications Office (ERO). Other allocation work is done by the International Telecommunications Union (ITU). To prevent overlapping uses of the radio waves, frequency is allocated in bands, which are simply ranges of frequencies available to specified applications. S. Table 1-1. S. 1 The ISM bands In Table 1-1, there are three bands labeled ISM, which is an abbreviation for industrial, scientific, and medical.
1x, which is described in Chapter 6. 1x has reportedly been broken. • Troubleshooting wireless networks is similar to troubleshooting wired networks but can be much more complex. As always, a trusty packet sniffer can be an invaluable aid. To take full advantage of a packet sniffer, though, you need to understand what the packets mean to interpret your network's behavior. • Tuning a wireless network is tied intimately to a number of parameters in the specification. To understand the behavior of your network and what effect the optimizations will have requires a knowledge of what those parameters really do.
802.11 Wireless Networks: The Definitive Guide (2nd Edition) by Matthew Gast