Difference between packets and frames

I will tell you from beginning, suppose we want to transfer some data. The user data is passed to the application layer, and this data is the transferred to transport layer. Transport layer include a header (which includes port address) etc with this data part and assemble it into so called datagram, this datagram then transferred to network layer,datagram is now the data for network layer where another header (which includes IP address of both sender and recvr) was added with this datagram and assemble it to so called packets, similarly this packet is now transferd to data link layer, this packet is now data part of DLL, where another header is added to this packet,now this is termed as frames.

sender side-

receiver side-


this information is displayed on application layer.


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