By Toby Velte, Anthony Velte
A brief reference for community engineers and directors, who're imposing or have applied Cisco instant technologies.Find 802.11 WLAN details quick and simply with this convenient referenceAccess product info quick and make judgements easilyConfigure and troubleshoot entry issues in a pinchSecure your instant community with important, easy-to-use tipsTune and optimize your WLAN with tricks and information during this guideCisco 802.11 instant Networking fast Reference is a short reference for community engineers and directors who paintings with Cisco instant applied sciences. it's a worthy hands-on fast reference for a person making plans, deploying, dealing with, optimizing, or troubleshooting a instant community, and enhances the suite of instant networking books within the Cisco Press catalog. This easy-to-use hands-on pocket reference is helping readers effectively practice on-the-job initiatives on instant networks. every one bankruptcy and part offers easy-to-understand factors and tips community engineers can enforce right now. half I presents description and research of Cisco instant LAN units; half II describes configuration essentialsl; and half III illustrates troubleshooting, tuning, and function administration. This pocket reference be utilized by community pros who're contemplating which Cisco instant apparatus to buy; contemplating imposing a Cisco answer with different proprietors' instant equipment; making plans so as to add instant features to the neighborhood region community; configuring entry issues and buyer units; dealing with instant networks; interpreting and enforcing protection on instant networks; appearing upkeep, troubleshooting, and tuning or instant networks.
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The Message Passing Interface (MPI) specification is time-honored for fixing major clinical and engineering difficulties on parallel desktops. There exist greater than a dozen implementations on machine systems starting from IBM SP-2 supercomputers to clusters of desktops working home windows NT or Linux ("Beowulf" machines).
The TCP/IP protocol suite is altering dynamically to mirror advances in know-how and will be thought of to symbolize the "protocol for the recent millenium. " The ABCs of TCP/IP displays those advances and contains new assurance on: safe net transactions useful subnetting examplesSecurity threats and countermeasures IPSecICMP usage and threatsThis accomplished reference offers pros with an outline of the TCP/IP suite and info its key parts.
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4-GHz bands (like the Cisco 1300) have their own line of antennas. Table 2-3 compares these antennas. Table 2-3. 4-GHz Bridge Antennas Part Number Type Description Beam Width Gain Range AIR-ANT2506 Omnidirectional mast mount Outdoor, short-range, point-to-multipoint connections. 66 miles ft. 21 miles at 54 Mbps AIR-ANT24120 High-gain omnidirectional mast mount Outdoor, medium-range, point-to-multipoint connections. 92 miles at 11 Mbps 1 mile at 54 Mbps AIR-ANT2414S-R Vertically polarized sector Outdoor, long-range, point-to-multipoint connections.
4 GHz / DSSS DSSS and and OFDM OFDM Cisco Wireless Router and Switch Services While the preceding devices are the most common that organizations use in constructing and maintaining a WLAN, Cisco offers other devices that can help your organization provide a robust, feature-rich wireless solution. Cisco 3200 Series Wireless and Mobile Routers To connect mobile networks to a wireless network, Cisco offers its Cisco 3200 Series wireless and mobile routers, shown in Figure 1-19. 11g functionality, these small devices (they are about as wide and long as a pen) can fit in vehicles or in outdoor locales.
1X supported authentication, using LEAP. Operations Band Channels Encryption includes support for static and dynamic 40- and 128-bit WEP keys. 11g: Multiplexing Orthogonal (COFDM) Frequency Division Multiplexing (OFDM) 11 4 Cisco Client Adapters As we move down the wireless food chain, we come to the devices connecting users with the wireless network. Wireless adapters can be fitted to a multitude of devices client PCs, personal digital assistants, network printers, and so forth. 11a Adapter The type of client adapter you use depends on what type of computer you need to connect.