By Toby Velte, Anthony Velte
A brief reference for community engineers and directors, who're enforcing or have applied Cisco instant technologies.Find 802.11 WLAN details speedy and simply with this convenient referenceAccess product details quickly and make judgements easilyConfigure and troubleshoot entry issues in a pinchSecure your instant community with valuable, easy-to-use tipsTune and optimize your WLAN with tricks and guidance during this guideCisco 802.11 instant Networking speedy Reference is a brief reference for community engineers and directors who paintings with Cisco instant applied sciences. it's a necessary hands-on fast reference for a person 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 with ease practice on-the-job initiatives on instant networks. each one bankruptcy and part promises easy-to-understand motives and suggestions community engineers can enforce immediately. 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 gear to buy; contemplating enforcing a Cisco answer with different owners' instant apparatus; making plans so as to add instant functions to the neighborhood quarter community; configuring entry issues and customer units; coping with instant networks; studying and enforcing safeguard on instant networks; acting upkeep, troubleshooting, and tuning or instant networks.
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Extra resources for Cisco 802.11 Wireless Networking Quick Reference
Enhancing your network's reach with additional APs is examined in Chapter 5. Cisco Aironet 1300 Series as a Bridge As noted in the previous section, the Cisco Aironet 1300 can be used as an outdoor AP or it can be used to connect several LANs in a MAN or campus environmentor even mobile networks. For optimal results in this capacity, the AP must be configured with the proper antenna. The Aironet 1300 can serve as either a point-to-point or point-to-multipoint bridge. This is illustrated in Figure 1-12.
That is, a client to the left of the antenna can receive the same signal as a client the same distance away on the right. • Directional antennas The signal is focused into a tighter beam and projected a greater distance than the omnidirectional antenna. Although range is increased, the antenna serves only clients in a given direction. Examples of directional antennas include the Yagi antenna, patch antenna, and parabolic dish. • Diversity antennas Two antennas reduce multipath distortion. The radio receives a signal on both antennas; however, it transmits on the one with the best signal reception.
Antenna radiation patterns must match as closely as possible. If just the edges of their radiation patterns connect, communication can be spotty. Problems include lost packets, high retry counts, and low signal strength. Use a bridge link test to align your bridge antennas. The link test is covered in more detail in Chapter 5. The Best Antenna for the Best Scenario Looking at a laundry list of antennas and their capabilities might overwhelm you. Now that the raw data has been presented, we show you a few examples of how these antennas can be used.