By Toby Velte, Anthony Velte
A brief reference for community engineers and directors, who're imposing or have carried out Cisco instant technologies.Find 802.11 WLAN info speedy and simply with this useful referenceAccess product details speedy and make judgements easilyConfigure and troubleshoot entry issues in a pinchSecure your instant community with necessary, easy-to-use tipsTune and optimize your WLAN with tricks and guidance 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 precious hands-on speedy reference for somebody making plans, deploying, handling, 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 simply practice on-the-job projects on instant networks. every one bankruptcy and part can provide easy-to-understand causes and information community engineers can enforce immediately. half I offers 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 execs who're contemplating which Cisco instant apparatus to buy; contemplating enforcing a Cisco answer with different proprietors' instant equipment; making plans so as to add instant services to the neighborhood quarter community; configuring entry issues and shopper units; dealing with instant networks; examining and imposing defense on instant networks; appearing upkeep, troubleshooting, and tuning or instant networks.
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5 meters (1 to 8 feet) apart. 15 meters (6 inches) do not experience the diversity needed to quash multipath distortion. The farther apart you locate the antennas, the more disparate the areas the antennas cover. If they are too far apart, the antennas cover different clients. Whenever the AP decides to switch to the other antenna, the group of clients covered is cut off, and vice versa. Diversity relies on the antennas to cover the same radio cell. Upgrading Antennas There will likely come a time when you need an additional antenna for your WLAN.
11g coverage These devices support Wi-Fi Protected Access (WPA) and WPA2. 1X authentication, which includes LEAP, EAP-TLS, PEAP-GTC, EAP-FAST, and PEAP-MSCHAP V2. Wireless security is explored in Chapter 4. In addition, RADIUS servers can be used for strong security and user management. 11a technology, shown in Figure 1-18. 11a AP or the Aironet 1130AG AP. Figure 1-18. 11a functionality, it operates at speeds of up to 54 Mbps in the 5-GHz band. Data rates can be reduced to extend the device's range.
Interference When you deal with interference, it is best handled if you start with a site survey. The mechanics of site surveys are covered in Chapter 5, "Installing and Configuring Access Points," but, in essence, a site survey involves checking your environment for sources of interference and the best placement of Wi-Fi equipment. If you connect outdoors, don't forget to factor in weather conditions and trees. A wireless bridge that works well on a clear, beautiful day might encounter retries and other performance issues when it rains, snows, or is foggy.
Cisco 802.11 Wireless Networking Quick Reference by Toby Velte, Anthony Velte