Port Channel Troubleshooting - Planet XGS3-42000R User Manual

Configuration result:
Add ports 1, 2, 3, 4 of Switch 1 to port-group 1 in order, and we can see a group in "on" mode is completely
joined forcedly, Chassis Switch in other ends won't exchange LA CP BPDU to complete aggregation.
Aggregation finishes immediately when the command to add port 2 to port-group 1 is entered, port 1 and port
2 aggregate to be port-channel 1, when port 3 joins port-group 1, port-c hannel 1 of port 1 and 2 are
ungrouped and re-aggregate with port 3 to form port-channel 1, when port 4 joins port -group 1, port-channel 1
of port 1, 2 and 3 are ungrouped and re-aggregate with port 4 to form port -channel 1. (It should be noted that
whenever a new port joins in an aggregated port group, the group will be ungrouped first and re-aggregated to
form a new group.) Now all four ports in both S witchA and SwitchB are aggregated in "on" mode and become
an aggregated port respectively.

12.5 Port Channel Troubleshooting

If problems occur when configuring port aggregation, please first check the following for causes.
 Ensure all ports in a port group have the same properties, i.e., whether they are in full-duplex mode,
forced to the same speed, and have the same VLAN properties, etc. If inconsistency occurs, make
corrections.
 Some commands cannot be used on a port in port-channel, such as arp, bandwidth, ip, ip-forward, etc.
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