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Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide
OL-17739-01
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 5-1 lists solutions to 10/100/1000-Mbps Ethernet controller problems.
Ta b l e 5-1 Ethernet Troubleshooting Chart
Ethernet Controller
Problem
Actions
Ethernet link status
LED does not work.
Check the following:
• 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
LED does not work.
Check the following:
• The network might be idle. Try sending data from this device.