How Switches Learn Mac Addresses

By switzerlandersing On Sep 15, 2025

How Switches Learn MAC Addresses | CCNA#

How Switches Learn MAC Addresses | CCNA# This tutorial explains how ethernet switches learn mac addresses. learn how ethernet switches dynamically learn mac addresses from incoming frames. This lesson explains how a switch learns mac address and why it floods frames when it doesn't know the destination mac address.

How Switches Learn MAC Addresses | CCNA#

How Switches Learn MAC Addresses | CCNA# Here, we will see how the switch learns the mac address of an end device pc even before the ping process between switch and pc. let's take an example of 2 pc's connected to switch. How does a switch learn mac addresses? discover the learning process, mac table logic, and cli examples to master this ccna topic. This article describes how network switches work, what are its functions, and how to display the mac address table. Explaining switch mac addresses, differences between mac and ip addresses, the mac address learning process, and configuring the switch mac address table.

CCNA How Switches Learn MAC Addresses - YouTube ITN 5.3.1.2 | Mac Address, Ccna, Switches

CCNA How Switches Learn MAC Addresses - YouTube ITN 5.3.1.2 | Mac Address, Ccna, Switches This article describes how network switches work, what are its functions, and how to display the mac address table. Explaining switch mac addresses, differences between mac and ip addresses, the mac address learning process, and configuring the switch mac address table. Switches learn mac addresses only from source mac addresses of incoming frames. so the only way our sw1 can dynamically learn the mac address of pc2 is to receive a frame from pc2 itself; and pc2 would not send a frame unless it has the need to do so. This article describes how switches learn mac addresses by associating the mac address of the sending device with the interface on which it was received. Here’s the cool part: switches are self learning. frame arrives at a port → the switch looks at the source mac address in the frame. update the table → the switch records: “this mac address lives on this port.” if the destination mac is known → forward the frame only to that port.