IEEE 802.11z introduces a mechanism that enables direct data transfer between two Wi-Fi clients that belong to the same Wi-Fi network.

Typically, within a Wi-Fi network, data is transmitted from one client to another through the intermediary of an Access Point (AP). The IEEE 802.11z amendment defines methods through which IEEE 802.11 can establish a direct link between client devices while still maintaining their association with the Access Point. These methods are collectively known as Tunneled Direct Link Setup (TDLS). This approach reduces the volume of traffic transmitted over the network and helps prevent congestion at the Access Point.

A TDLS direct link is established automatically between the devices without requiring intervention from the Access Point or the user. Simultaneously, the connection with the Access Point remains intact.

It’s important to note that TDLS and Wi-Fi Direct are not interchangeable concepts. TDLS is primarily used to optimize traffic flow within a network, whereas Wi-Fi Direct is employed to swiftly connect devices on the go, even in the absence of a Wi-Fi network.