A network administrator has configured VLAN 99 as the management VLAN and has configured it with an IP address and subnet mask. The administrator issues the show interface vlan 99... A network administrator has configured VLAN 99 as the management VLAN and has configured it with an IP address and subnet mask. The administrator issues the show interface vlan 99 command and notices that the line protocol is down. Which action can change the state of the line protocol to up?

Understand the Problem

The question is asking about troubleshooting a VLAN configuration issue in a network. It specifically focuses on why the line protocol for VLAN 99 is down and what actions can be taken to bring it up. The key concepts involve understanding VLAN configuration and network protocols.

Answer

Connect a host to an interface associated with VLAN 99.

Connect a host to an interface associated with VLAN 99.

Answer for screen readers

Connect a host to an interface associated with VLAN 99.

More Information

In order for a VLAN interface to become active, there must be at least one interface in the VLAN that is up/up. Connecting a host to an interface associated with VLAN 99 ensures that there is an active physical interface in that VLAN.

Tips

A common mistake is checking the VLAN configuration without connecting any device to it. Ensure devices are connected to verify the interface status.

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