Netgear ETHERNET SWITCH SW108 User Manual download pdf (Page 25)

Troubleshooting 5-1

Chapter 5

Troubleshooting

This chapter provides information about troubleshooting the NETGEAR Model SW108 Ethernet

switch.

Troubleshooting the Switch and the Network

To troubleshoot the switch and the network, refer to Table 5-1.

Table 5-1. Troubleshooting

Symptom Activity Check

No power at switch Power LED off Check the power cord connections and make sure the ends are

properly plugged into the switch and the wall outlet.

Rx/Tx Collision LED

blinking

Blinking yellow Data collisions are normal on Ethernet networks and occur

when two or more computers transmit data on the network

simultaneously. Computers that caused the collision retry

transmission at different intervals until the transmission

succeeds. Excessive collisions can result when multiple

switches are connected and when many computers are

connected on the network. Incorrect cabling, connectors, wiring

techniques, and mismatched duplex operating mode settings

are other causes for excessive collisions.

When conﬁgured to

operate in full-duplex

mode, the port is

operating in half-duplex

mode

FDX LED off The connected device may not be able to operate at

half-duplex or may not have the ability to signal the operating

mode. Verify that the connected device is operational.

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Netgear ETHERNET SWITCH SW108 User Manual Page 25