Az Eth csomag minimal hossza 60 byte+4 CRC!
http://sd.wareonearth.com/~phil/net/overhead/
(Notes2)
Ennek oka (tessek szamolni
http://cnx.org/content/m0079/latest/
Egyeb indokok, kifejtve:
http://wiki.wireshark.org/Ethernet
"Allowed Packet Lengths"
http://en.wikipedia.org/wiki/Ethernet
"Runt frames"
Szabvany:
http://en.wikipedia.org/wiki/IEEE_802.3
"The maximum packet size is 1518 bytes, although to allow the Q-tag for Virtual LAN and priority data in 802.3ac it is extended to 1522 bytes. If the upper layer protocol submits a protocol data unit (PDU) less than 64 bytes, 802.3 will pad the data field to achieve the minimum 64 bytes. The minimum Frame size will then always be of 64 bytes."
A -4 (Byte)a CRC, amit a vegen kerdeztel.
RDC - Recommended Data Constant (?)

