The answer to your question is somewhat dependent on the media over which you will send the frame. We typically think about this kind of question in terms of Ethernet which does define minimum frame size. And on Ethernet with minimum frame size of 64, you can subtract out the bytes for IP header and the bytes for Ethernet framing and think that you will find the minimum payload size. But in Ethernet if the payload is not big enough the frame will be padded to achieve the minimum size. And other media may not have minimum frame size defined. So the minimum payload of an IP frame is 1 byte.
Yes I've found some related article that say minimum ethernet payload are 46 bytes. The ethernet payload itself is 20 bytes ip packet header + data payload. Is the minimum data payload of the layer 3 packet also 1 byte? Can it have 0 byte size for payload?
I found this link , this is a brakedown of an ip datagram (IPv4) based on ethernet media MTU max size of 1500 bytes,
but as Rick posted it, minimun size for ip datagram is 64.
check this link, if you add the size(bytes) colum it will leave the last three fields as variants, the last field at the bottom is the data payload which can be bigining with 64 bytes being the minimun size, or 128, or 256, 512 and so on to come up with a total of 1500 bytes for ethernet max MTU size.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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