Configuring and Verifying Inter-switch Connectivity

Configure IP Address On the Virtual PCs:

PC1:

PC2:

PC3:

PC4:

Configure VLANs On both Switches:

Switch(config)#VLAN 10
Switch(config-VLAN)#exit
Switch(config)#VLAN 20
Switch(config-VLAN)#exit

Switch1: 

Switch2: 

Add the Switch Ports Connected to End-Users:

Switch(config)#int <interface_id>
Switch(config-if)#Switch Port mode access
Switch(config-if)#Switch Port access VLAN <VLAN_number>
Switch(config-if)#exit

Switch1: 

Switch2: 

Let’s check the connectivity between PCs Right now.

As you can see, none of the PCs can communicate to each other. 

• PC1 and PC2 are not able to communicate because of different VLANs.
• PC1 and PC3 are not able to communicate because there is no Inter-switch connectivity.
• PC1 and PC4 are not able to communicate because of different VLANs and no Inter-switch connectivity.

VLAN stands for Virtual Local Area Network. It is a 12-bit identity used to create multiple broadcast domains in a switch. VLAN ranges from 0 to 4095 (VLAN 0 and VLAN 4095 are reserved and not used).