Troubleshooting

 

 

Diagnosing with the LEDs

 

 

 

Tip

Problem

Solution

 

 

 

➏

The network

Try the following procedures:

 

connection is not

• For the indicated port, verify both ends of the cabling, at the switch and the connected

 

working

device, are connected properly.

 

properly.

• Verify the connected device and switch are both powered on and operating correctly.

 

 

 

 

• Verify you have used the correct cable type for the connection:

 

 

– For fiber-optic connections, verify the transmit port on the switch is connected to

 

 

the receive port on the connected device, and the switch receive port is connected

 

 

to the transmit port on the connected device.

 

 

• Verify the port has not been disabled through a switch configuration change.

 

 

You can use the console interface, or, if you have configured an IP address on the

 

 

switch, use the web browser interface, or ProCurve Manager network management

 

 

software to determine the state of the port and re-enable the port if necessary.

 

 

• Verify the switch port configuration matches the configuration of the attached device.

 

 

For example, if the switch port is configured as “Auto”, the port on the attached device

 

 

also MUST be configured as “Auto”. Depending on the port type, twisted-pair or fiber-

 

 

optic, if the configurations do not match, the results could be a very unreliable

 

 

connection, or no link at all.

 

 

• If the other procedures do not resolve the problem, try using a different port or a

 

 

different cable.

 

 

 

➐

The port may be

Use the switch console to see if the port is part of a dynamic trunk (through the LACP

 

improperly

feature) or to see if Spanning Tree is enabled on the switch, and to see if the port may

 

configured, or

have been put into a “blocking” state by those features. The show lacp command displays

 

the port may be in

the port status for the LACP feature; the show spanning-treecommand displays the port

 

a “blocking”

status for Spanning Tree.

 

state by the

Also check the Port Status screen using the show interfaces command to see if the port

 

normal operation

has been configured as “disabled”.

 

of the Spanning

Other switch features that may affect the port operation include VLANs and IGMP. Use

 

Tree, LACP, or

 

the switch console to see how the port is configured for these features.

 

IGMP features.

 

For software troubleshooting tips, see the chapter “Troubleshooting” in the Management

 

 

 

 

and Configuration Guide, which is on the Documentation CD-ROM that came with your

 

 

switch.

 

 

Make sure also, the device at the other end of the connection is indicating a good link to

 

 

the switch. If it is not, the problem may be with the cabling between the devices or the

 

 

connectors on the cable.

 

 

 

➑

An RPS is

Refer to the ProCurve 600/610 External Power Supplies documentation. You may have to

 

connected but

replace the switch.

 

the switch has

 

 

experienced an

 

 

internal power

 

 

supply fault.

 

 

 

 

➒

Expansion cl

Check the rear of the switch. Check the module LEDs for indications. This condition will

 

module is

only occur during an initialization self test.

 

plugged in but

 

 

has experienced

 

 

a fault.

 

 

 

 

Troubleshooting

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