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A 1/10GBase-T 10-GE copper port fails to come
up
Symptom
A 1/10GBase-T 10-GE copper port fails to come up.
Troubleshooting flowchart
Figure 8 Troubleshooting link up failure on a copper port
Solution
To resolve the issue:
1.
Verify that the speed and duplex mode of the local port match the speed and duplex mode of
the peer port:
The 1/10GBASE-T ports on the device can operate only at 10 Gbps or 1 Gbps and cannot
operate at 10 Mbps or 100 Mbps.
a.
Execute the
display interface brief
command to examine whether the speed and duplex
mode of the port match the speed and duplex mode of the peer port.
b.
If they do not match, use the
speed
command and the
duplex
command to set the rate and
duplex mode for the port.
2.
Replace the network cable with a new one to verify that the network cable is in good condition.
3.
Replace the local port with a new one to verify that the local port is operating correctly.
Speed/duplex match
on local and peer port?
No
Yes
No
Yes
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
No
Contact the support
A port failed to come up
End
Replace peer port
Resolved?
Network cable correct?
Local port
operating correctly?
Replace local port
Replace network
cable
Configure matching
speed/duplex
Resolved?
Resolved?
Resolved?
Peer port
operating correctly?
