Troubleshooting guide

ManualsBrandsAlaxala ManualsComputer equipmentAX2400S series

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3. Troubleshooting Functional Failures During Operation

Table 3-10: Failure analysis method for 10BASE-T/100BASE-TX/1000BASE-T problems

No. Items to check Cause Action

1Use the

show

interfaces command

to display the failure

statistics, and check

whether there is a count

for the following item for

the target port. If there is

a count, see the Cause

and Action columns.

• Link down

Line quality is

degraded.

Check whether the cable types are correct. For the types, see the

Hardware Instruction Manual.

If the Switch is set as follows, make sure that the pin mapping

is for MDIX.

• A fixed connection is set for the target port.

• Auto-negotiation is enabled and the automatic MDIX

functionality is disabled for the target port.

Check the cable length. For the cable length, see the Hardware

Instruction Manual.

Check whether the cables are connected correctly (for example,

check for incomplete insertion).

Replace with the connection interface supported by the Switch.

For details about the connection interfaces supported by the

Switch, see the Configuration Guide.

Perform a line test on the Switch and make sure that the

functionality of the receiving side has no problem. Check the

results of the

no test interfaces (Ethernet) command, and

take the action described in Action. For the test types to be

specified, see 6.1 Testing a line.

2Use the

show

interfaces command

to display the failure

statistics for the receiving

side, and check whether

there are counts for the

following items for the

target port. If there is a

count, see the Cause and

Action columns.

• CRC errors

• Symbol errors