802.11 Roaming- Understanding How Wireless Devices Transition Between Access Points
We have heard about roaming several times, and understand how seamless roaming experience is important for users with time sensitive applications. This seamless experience is made possible by a process called "roaming" in 802.11 wireless networks. What is 802.11 Roaming and how does it work? The 802.11 roaming refers to the process where a wireless station moves from one access point (AP) to another within the same extended service set (ESS). This transition should ideally happen without any interruption to the network connectivity. When the station first connect to a Wi-Fi network, it associates with an access point. As you move away from this initial access point, the signal strength degrades. When this happens, your device starts scanning for a better connection, looking for another access point to associate with. A very important fact, which is often forgotten by the Users/Network administrators is, the decision to roam is made entirely by your device, not the Access Poi...
