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Overlay transport virtualization
open-in-new
<p>Overlay transport virtualization (OTV) is a <a href="/facts/Cisco/ocDgQt6T">Cisco</a> <a href="/facts/Proprietary_protocol/o902Cmmh">proprietary protocol</a> for relaying <a href="/facts/Layer_2/K9yPufbt">layer 2</a> communications between <a href="/facts/Layer_3/L2jAtJzQ">layer 3</a> <a href="/facts/Computer_network/3w5RM99p">computer networks</a>. </p>