ensuring that the data portion of the frame totals at least 46 bytes
Yes, padding is needed for an Ethernet frame if the IP packet is only 60 bytes and the Length/Type field (LCC) is not in use. Ethernet frames must be at least 64 bytes in total, including the header and trailer. Since the Ethernet header is 14 bytes and the trailer (Frame Check Sequence) is 4 bytes, the total without padding is 78 bytes. Therefore, 0 bytes of padding are needed because the total frame size exceeds the minimum requirement.
It gives the receiving NIC time to realize a frame is coming and to know when the frame starts..
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what are the ethernet frame parts The source and destination MAC addresses
Arpa encapsulation must be used to enable Ethernet II frame type on your Ethernet.
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Frame Size
ethernet frame required minimum of 64 bytes expalin why?
The purpose is the preamble signals to the receiving node that data is incoming and indicates when the data flow is about to begin. The SFD (start-of-frame delimiter) identifies where the data field begans.