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IEEE 802.11v is an amendment to the IEEE 802.11 standard to allow configuration of client devices while connected to wireless networks. It was published as 802.11v-2011 and later incorporated into 802.11-2012 
802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, 802.11g, 802.11n, and 802.11ac versions to provide wireless connectivity in the home, office and some commercial establishments.
802.11v is the Wireless Network Management standard for the IEEE 802.11 family of standards. 802.11v allows client devices to exchange information about the network topology, including information about the RF environment, making each client network aware, facilitating overall improvement of the wireless network.
After several years in development as a draft standard, 802.11v was ratified as a formal amendment to the 802.11 standard on 2 February 2011.