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ieee 8023

資料來源 : Free On-Line Dictionary of Computing

IEEE 802.3
     
        The {IEEE} standard defining the {hardware layer} and
        {transport layer} of (a varient of) {Ethernet}.  The maximum
        {segment} length is 500m and the maximum total length is
        2.5km.  The maximum number of hosts is 1024.
     
        The maximum {packet} size is 1518 bytes.  If the upper layer
        {protocol} submits a {PDU} less than 64 bytes, 802.3 will pad
        the {LLC Info} field to achieve the minimum 64 bytes.
     
        Although it is not technically correct, the terms "{packet}"
        and frame are used interchangeably.  The {ISO}/{IEC} 8802-3
        {ANSI}/{IEEE} 802.3 Standards refer to {MAC} sub-layer
        {frame}s consisting of the Destination Address, Source
        Address, Length, LLC Info., and {FCS} fields.  The {Preamble}
        and {SFD} are (usually) considered a header to the {MAC}
        Frame.  This header plus the MAC Frame constitute a "Packet".
     
        (1995-07-09)
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