H3C Technologies H3C S12500-X Series Switches - Manual (Page 24)

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• Typically, set the MDIX mode of the interface to AutoMDIX. Set the MDIX mode of the interface to
MDI or MDIX only when the device cannot determine the cable type.
• When a straight-through cable is used, set the interface to operate in the MDIX mode different from
its peer.
• When a crossover cable is used, set the interface to operate in the same MDIX mode as its peer, or
set either end to operate in AutoMDIX mode.
To set the MDIX mode of an Ethernet interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter Ethernet
interface view.
interface interface-type interface-number N/A
3. Set the MDIX
mode of the
Ethernet interface.
mdix-mode { automdix | mdi | mdix }
By default, an Ethernet interface
operates in auto mode to negotiate
pin roles with its peer.
Testing the cable connection of an Ethernet interface
IMPORTANT:
Fiber ports do not support this feature.
This feature tests the cable connection of an Ethernet interface and displays cable test results within 5
seconds. The test results include the cable's status and some physical parameters. If any fault is detected,
the test results include the length of the faulty cable segment.
To test the cable connection of an Ethernet interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter Ethernet
interface view.
interface interface-type interface-number N/A
3. Test the cable
connected to the
Ethernet interface.
virtual-cable-test
If the link of an Ethernet port is up,
testing its cable connection will cause
the link to come down and then go
up.
Displaying and maintaining an Ethernet interface
Execute display commands in any view and reset commands in user view.
Task Command
Display interface traffic statistics.
display counters { inbound | outbound } interface [ interface-type
[ interface-number ] ]