ethernet

I have a question, what is the maximum packet size RTP possible, when transmitting it over the TCP or UDP protocol, since the ... potential packet RTP. It would also be great to know which ones + and - when sending the maximum packet size by TCP and UDP.

Tell me, what is the difference between ethernet and serial? On the Internet, only general words are described, and in books in different ways.

I got confused about the frames (frames). I don't understand how it is calculated? Should the MTU be constant or not? - in my ... //ru.wikipedia.org/wiki/Ethernet the payload can be variable, and the total frame length or payload length is not specified?

We provide the client with a channel on the L2 network, there is a need to enable support for jumbo frames, because it does n ... w this functionality is configured on dlink equipment and whether there is a risk of losing communication with the equipment?