In this task, you are to observe the status and protocol states for the FastEthernet interfaces provided and determine whether the routers are properly configured. Then explain what could cause the following conditions:

Question

1. Interface - fastethernet 0/0
status - up
protocol - up

2. Interface - fastethernet 0/0
status - administratively down
protocol - down

3. Interface - fastethernet 0/0
status - administratively down
protocol - up

4. Interface - fastethernet 0/0
status - down
protocol - down

Answer 1

1. This indicates that the interface has been enabled by the network administrator. Protocol up indicates that the interface is seeing the keepalive packets, indicating that the interface is connected to another networking device.
2. This indicates that the interface has been not been enabled by the network administrator.
Protocol down indicates that the interface is not seeing the keepalive packets. This indicates that the FastEthernet port is not attached or the link is broken.
3. This indicates that the interface has been not been enabled by the network administrator.
Protocol up indicates that the interface is seeing the keepalive packets, indicating that the interface is connected to another networking device.
4. This indicates that the interface has been enabled by the network administrator but the interface is not communicating with another networking device. Protocol down indicates that the interface is not seeing the keepalive packets. This indicates that the FastEthernet port is not attached or the link is broken.