Chapter 5 Troubleshooting the System Hardware

Troubleshooting the Ethernet Controller

The Ethernet link status LED is on when the Ethernet controller receives a link pulse from the switch. If the LED is off, there might be a defective connector or cable or a problem with the switch.

The Ethernet activity LED is on when the Ethernet controller sends or receives data over the Ethernet network. If the Ethernet activity LED is off, make sure that the switch and network are operating and that the correct device drivers are installed.

Make sure that you are using the correct device drivers that are supplied with your device and that the device drivers on the client and the device are using the same protocol.

Check for operating system-specific causes for the problem.

Ethernet Controller Troubleshooting Chart

 

 

Table 5-1lists solutions to 10/100/1000-Mbps Ethernet controller problems.

Table 5-1

Ethernet Troubleshooting Chart

 

 

 

Ethernet Controller

 

 

Problem

 

 

Actions

 

 

 

Ethernet link status

 

Check the following:

LED does not work.

 

Make sure that the switch to which the WAVE appliance is connected is

 

 

 

 

 

 

powered on.

 

 

 

Check all connections at the Ethernet controller and the switch.

 

 

 

Use another port on the switch.

 

 

 

If the switch does not support autonegotiation, manually configure the

 

 

 

Ethernet controller to match the switch.

 

 

 

If you manually configured duplex mode, make sure that you also

 

 

 

manually configure the speed.

 

 

 

Reseat or replace the adapter.

 

 

 

The Ethernet activity

 

Check the following:

LED does not work.

 

The network might be idle. Try sending data from this device.

 

 

 

 

 

 

 

 

 

Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide

 

 

 

 

 

 

OL-17739-01

 

 

5-5

 

 

 

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Cisco Systems 274, 474 manual Ethernet Controller Troubleshooting Chart, Ethernet Controller Problem Actions