Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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Table 3-15 Communication failure analysis method when link aggregation is used
No. Items to check and commands Action
1 Use the show channel-group
detail operation command to
check the link aggregation setting
that caused the communication
failure.
Make sure the link aggregation mode is the same as the mode for
the remote device. If the modes are different, set the same link
aggregation mode that is set for the remote device.
If the link aggregation mode matches:
 Check whether the LACP start method is set to passive for
both ports. If passive is set for both ports, change the
setting of one of the ports to active.
 Make sure the key is correctly set on the Actor device.
2 Use the show channel-group
detail operation command to
check the operating status of the
port that caused the communication
failure.
Check the status of each port displayed for Status. If all ports of
the link aggregation group have gone down, the link aggregation
group also goes down.
 Detached
The port went down or is reserved, a port speed mismatch
occurred, or half-duplex mode is set.
 Attached
The port is in a transition state or is negotiating.
 Collecting
The port is in a transition state or is negotiating (data can be
received).
 Distributing
Data can be sent and received.