MAC ADDRESS LEARNING PROCESS SWITCH HOW TO

MAC Address table Switch#show mac-address-table So there is no chance of learning PC MAC address by a switch.Īt this point, when we run the command in switch, then you will see no entry in the MAC address table. So it will drop the frames and never send back a reply switch. Īs you know, PC is a layer 3 device, and it has no service to accept Layer 2 protocol frames.

These frames have a multi-cast destination MAC address, so these frames will be flooded to both PCs. Usually, the switch sends Layer 2 protocol frames like STP(Spanning-tree protocol), CDP(Cisco Discovery Protocol), and DTP(Dynamic Trunking Protocol)in periodic time intervals. Both PCs have MAC addresses and the switch maintains the MAC address table, and it will learn all MAC addresses in the network. There is a switch in the middle and 2 PCs are connected to switch Ethernet ports. Note: There are not assigned IP Addresses to PCs.

Let’s take an example of 2 PC’S connected to Switch.

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MAC ADDRESS LEARNING PROCESS SWITCH HOW TO

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Mac address learning process switch