Type-Length-Value: Difference between revisions
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'''Type-Length-Value''' is a form of encoding that generally conforms to the following format: | |||
Revision as of 22:38, 12 April 2011
Type-Length-Value is a form of encoding that generally conforms to the following format:
0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Type | Length | ... | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ ~ ... ~ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type 8-bit identifier of the type of option. The value in the Type field is context dependent.
Length 8-bit unsigned integer. The length of the option (including the type and length fields) in units of 8 octets. A Length value of 0 is often either invalid or indicates a minimum value of, for example, 64bits.
Value This is a variable length field (as specified in the Length field) containing context-specific values.