Inter-VLAN routing has been operating successfully for several months. Users who connect to a newly installed switch report that they are unable to communicate with the rest of the company’s networks. You decide to ensure that the switch is properly connected to the VTP domain before taking any other troubleshooting steps.What command would be best used to verify this?

• 300-420 : All Parts

The command show vtp status would be the best command to verify the switch’s connection to the company’s VTP domain. This command displays the version of VTP, the VTP domain the switch is a member of, the VTP mode of the switch, and other configuration settings relating to VTP.

The command show vlan will display the VLANs that exist and the ports that are members of the VLANs, but will not identify whether switch is a member of the VTP domain. If the VLANs that are displayed with this command are the same as those in the VTP domain, it does not necessarily mean the switch is a member of the domain. This data needs to be verified with the show vtp status command.

The command show ip route is used to verify the routing table, but it does not provide any VTP information. This command is used to verify routes to other networks discovered or configured on the switch. It will display the routing protocol used to discover each route, and the next hop used to forward traffic to the destination network.

The command show interfaces trunk is used to verify which VLANs are being forwarded to another device, but does not indicate whether the switch is a member of the VTP domain.

The command show interfaces would not allow you to verify the switch’s connection to the company’s VTP domain. This command would allow you to determine the following features of the switch:

• Port state
• Port speed
• Input errors
• Collisions

Objective:
Layer 2 Technologies
Sub-Objective:
Configure and verify trunking