Wireless   Wireless LAN (WLAN) technology allows for network connection that is flexible in terms of both location and number of users Wireless LAN Fundamentals A WLAN can include PCs, laptop computers, and any other device that is normally found on a typical wired network. Access Points The WLAN consists of microcells created with the use of Access Points (AP). An AP is a unit that allows wireless clients to access a network; it attaches to the Ethernet backbone via a 10/100 port connection and communicates with all the wireless devices in the cell area Topologies and Configuration Wireless networks require planning, topology design, and configuration just like wired networks. The first critical step to a good deployment is determining AP placement, and deciding how many are required for the desired coverage. Coverage gaps cause dead air, which could lead to connectivity problems Wireless Bridging Wireless bridging allows multiple, non-tangential networks to be unified into one LAN, saving cabling costs. Bridges can feature either workgroup bridges (WGB) or Ethernet bridges. Wireless Bridge Use Wireless bridges connect two or more physically separated networks, even when they are separated by obstacles such as freeways, railroads, and bodies of water. Cisco wireless bridges also allow multiple sites to share a single, high-speed connection to the Internet.