Configuring VLANs, Trunk Ports, and EtherChannel on Cisco Switches

This article shows step‑by‑step CLI commands to create VLAN 2 and VLAN 3 on two Cisco switches, name the VLANs, and assign them to specific fast‑ethernet interface ranges using switchport access vlan.

Example commands for Switch0 include:

Switch0(config)#vlan 2

Switch0(config-vlan)#name wangluobu

Switch0(config-vlan)#interface range fastethernet0/1-2

Switch0(config-if-range)#switchport access vlan 2

Switch0(config)#vlan 3

Switch0(config-vlan)#name xiaoshou

Switch0(config-vlan)#interface range fastethernet0/3-4

Switch0(config-if-range)#switchport access vlan 3

Similar commands are repeated for Switch1, followed by show vlan to verify the VLAN configuration.

To configure a trunk port on Switch1, the guide uses:

Switch1(config)#interface fastEthernet 0/5

Switch1(config-if)#switchport mode trunk

The resulting trunk status can be displayed with: Switch#show interface fastEthernet 0/5 switchport For redundancy, multiple ports are bundled into an EtherChannel. The commands on Switch0 are:

Switch0(config)#interface range fastethernet 0/6-7

Switch0(config-if-range)#switchport mode trunk

Switch0(config-if-range)#channel-group 1 mode on

After configuration, the EtherChannel summary can be checked with: show etherchannel summary Additional steps include shutting down interfaces and testing connectivity with a ping to 192.168.1.4 to confirm the setup.