Mission 013

Engineer Briefing

A beginner sees a switch and thinks:

"A switch connects computers."

A network engineer asks deeper questions:

• How does the switch process a frame?
• How does it decide where to send it?
• What happens inside the switch?
• Can multiple conversations happen at the same time?

This mission explains the internal decision-making process of Ethernet switching.

Mission Objectives

By the end of this mission, students should understand:

✅ The complete frame forwarding process.

✅ How switches examine frames.

✅ How switches make forwarding decisions.

✅ Full-duplex communication.

✅ Half-duplex communication.

✅ Why modern networks use switched Ethernet.