The Learning SwitchData link layer bridging

A switch starts knowing nothing

Hosts A, B and C each have a port. D and E share port 4 through a hub. Send a frame and watch the switch learn who sits where, then stop shouting.

No frame yet

Press Send frame, or step through the story.

MAC table

MACHostPortFrames since seen

Real switches remove an entry after a timeout, usually 300 seconds. Age out the table to try that.

What happened

  1. Nothing yet.