Etherlength, or the EtherType field in an Ethernet frame, serves to indicate the protocol encapsulated within the frame's payload. It helps the receiving device understand how to process the data contained in the frame, allowing for correct interpretation and handling by the appropriate layer of the networking stack. By specifying the type of protocol (e.g., IPv4, ARP, etc.), Etherlength facilitates interoperability between different network protocols.
It gives the receiving NIC time to realize a frame is coming and to know when the frame starts..
ensuring that the data portion of the frame totals at least 46 bytes
IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...IP, Ethernet, Frame Relay, ...
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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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.
ethernet frame required minimum of 64 bytes expalin why?