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Troubleshooting flowchart
Figure 11 Troubleshooting fiber port's failure to come up
Solution
To resolve the problem:
1. Verify that the speed and duplex mode of the local port match the speed and duplex mode of the
peer port:
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.
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