Encoded Length and Value Bytes
The Length field in a TLV triplet identifies the number of bytes encoded in the Value field. The Value field contains the content being sent between computers. If the Value field contains fewer than 128 bytes, the Length field requires only one byte. Bit 7 of the Length field is zero (0) and the remaining bits identify the number of bytes of content being sent. If the Value field contains more than 127 bytes, bit 7 of the Length field is one (1) and the remaining bits identify the number of bytes needed to contain the length. Examples are shown in the following illustration.
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