Network Devices Speed & Duplex Settings

Questions and Answers

What command is used to view interface details?

#show interface

Most NICs can auto-sense speed and duplex settings.

True

To force the speed on Switch 0 G0/1, the command is (config-if)#speed ______.

1000

To force the duplex on Switch 1 G0/1, the command is (config-if)#duplex ______.

full Signup and view all the answers

What happens when the duplex is changed to half on Switch 0 G0/1?

The connection goes down. Signup and view all the answers

Which commands are used to configure speed and duplex for Switch 0 G0/1? (Select all that apply)

(config-if)#duplex full Signup and view all the answers

What file is referenced for the packet tracer lab?

Speed & Duplex.pkt Signup and view all the answers

Study Notes

Speed and Duplex Settings

Devices can automatically sense current speed and duplex settings.
Forcing specific speed and duplex settings can resolve issues.

Viewing Interface Details

Use #show interface to check current Ethernet interface settings.
Speed and duplex settings must match on connected devices.
Use #show interface status for status information, common in switches.

Configuring Switch 0 G0/1

Enter configuration mode with #(config)#interface g0/1.
Set speed to 1000 Mbps using (config-if)#speed 1000.
Set duplex to full using (config-if)#duplex full.

Configuring Switch 1 G0/1

Access configuration mode with (config-if)#interface g0/1.
Set speed to 1000 Mbps and duplex to full similarly.

Forcing a Mismatch on Switch 0 G0/1

Change duplex to half with (config-if)#duplex half.
Observe that the connection drops.
Revert to full duplex using (config-if)#duplex full to bring the connection back up.
Set the speed to 100 Mbps with (config-if)#speed 100, causing the connection to drop again.
Restore speed to 1000 Mbps using (config-if)#speed 1000, resulting in the connection coming back online.

Common Issues

Mismatched speed and duplex settings lead to connectivity problems.

Description

This quiz explores the speed and duplex settings in network devices, focusing on the auto-sensing capabilities and manual configurations. You'll learn how to view interface details and troubleshoot mismatched settings, essential for effective network management.