SSID
SSID (Service Set Identifier), an alphanumeric string (up to 32 characters), is a unique identifier for a specific Wi-Fi access point. The SSID differentiates one WLAN from another. If the access point is configured to periodically broadcast its SSID, the wireless devices that are within range can detect the network and connect to it. When broadcasting is disabled, a wireless client must be configured with the network's SSID in order to connect to it.