Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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• Port Down
The status of the port is link down. For details, see 3.5 Network
interface communication failures.
• Port Speed Unmatch
The line speed of the port is different from that of the other ports in
the channel group, and degradation has occurred. To avoid the
degradation, specify the same speed for all ports in the channel
group.
• Duplex Half
The mode is
Half and degradation has occurred. To avoid the
degradation, set Duplex mode to
Full.
• Port Selecting
The port aggregation condition check is being performed, and
degradation has occurred. Wait for a while, and if the problem is not
resolved, check the operating status and the settings of the remote
device.
• Waiting Partner Synchronization
The port aggregation condition check has been finished, but
degradation has occurred because the system is waiting for the
partner port to be synched. Wait for a while, and if the problem is not
resolved, check the operating status and the settings of the remote
device.
• Partner System ID Unmatch
The Partner System ID received from the partner port is different
from the Partner System ID of the group, and degradation has
occurred. To avoid the degradation, check the operating status of the
remote device and also check the wiring.
• LACPDU Expired
The valid time of the LACPDU from the partner port has expired,
and the target port is in a degraded state. Use the
show
channel-group statistics command with the lacp parameter
to check the statistics for the LACPDU. Also, check the operating
status of the remote device.
• Partner Key Unmatch
The key received from the partner port is different from the Partner
Key of the group, and degradation has occurred. To avoid the
degradation, check the operating status of the remote device and also
check the wiring.
• Partner Aggregation Individual
A "link aggregation impossible" message is received from the
partner port, and degradation has occurred. To avoid degradation,
check the operating status and the settings of the remote device.
• Partner Synchronization OUT_OF_SYNC
A "synchronization impossible" message is received from the partner
port, and degradation has occurred. (This state occurs if the
configuration is changed on the Switch or if the line is deactivated on
the remote device.)
• Port Moved
The connected port has been connected to another port. Check the
wiring.
• Operation of Detach Port Limit
The port detachment restriction functionality is activated, and the
channel group is down.
No. Items to check and commands Action