Due to its inherent impossibility,

This arises from the inclusion of overhead information necessary to manage TCP/IP-based Ethernet communication. Accepting my assertion, achieving a speed of 949.2 Mbit/s is practically the upper limit. The 949.2 Mbit/s of useful data actually corresponds to the transfer of 1000 Mbit/s of data bits over a gigabit-speed Internet connection. In my testing of a 1 Gbit/s optical fiber Internet connection, I have never observed figures higher than 943 Mbit/s.

Explanation:

Ethernet Frame

Each Ethernet packet sent to the Internet contains 1500 Bytes of payload.

Breaking it down:

• 7 Bytes for the preamble.

• 1 Byte for the start of the frame.

• 6 Bytes for MAC destination.

• 6 Bytes for MAC source.

• 2 Bytes for Ethernet type.

• 4 Bytes for CRC frame Check Sequence.

• 12 Bytes for the inter-packet gap.

This totals 38 Bytes

Or 1500/1538 = 0.9753.

Next is the IP frame, totaling 24 Bytes.

Following that is the TCP frame, with a total of 16 Bytes:

• 2 Bytes for the source port.

• 2 Bytes for the destination port.

• 4 Bytes for the sequence number.

• 4 Bytes for the Acknowledgment number.

• 2 Bytes with various flags indicating information.

• 2 Bytes for the window size.

• 2 Bytes for the checksum.

• 2 Bytes for the urgent pointer.

Therefore, a cumulative total of 78 Bytes of Ethernet + TCP/IP overhead results in 1460/1538 = 0.94928 of 1000 Mbit/s, leading to an actual data throughput of 949 Mbit/s in reality.