Confused in using the ports for trunking mode ![enter image description here]( The ports are as follows: for the switch on the left side the upper port is `fa0/1`, below it is `fa 1/1` and below `fa1/1` is `fa2/1`. For the switch in the middle the left port is fa0/1 and the right port is `fa 1/1`. For the switch on the right side, the upper port is `fa1/1` below it `fa2/1` and below `fa2/1` is `fa3/1`. In the diagram below, when configuring trunk mode will I give the following commands: S1 interface range fa0/1, fa1/1 switchport mode trunk no shutdown end S2: interface range fa 1/1, fa2/1, fa3/1 switchport mode trunk no shutdown end S3: interface range fa 1/1, fa2/1, fa3/1 switchport mode trunk no shutdown end If not then can you please mention the correct code?

Zac67 is right. Use the `switchport mode access` when you connect a port to a client end device ( PC, tel, etc) and use the trunk mode for connection between switches.