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Reference.org
Type–length–value
open-in-new
<p>Within <a href="/facts/Communication_protocols/5uady7cB">communication protocols</a>, TLV (type-length-value or tag-length-value) is an encoding scheme used for informational elements. A TLV-encoded data stream contains code related to the record type, the record value's length, and finally the value itself. </p>