PLANET XGS3-24042 - Manual (Page 115)

12-7
Configuration result:
Add ports 1, 2, 3, 4 of S1 to port-group1 in order, and we can see a group in “on” mode is completely joined
forcedly, switch in other ends won’t exchange LACP PDU 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-channel 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 S1 and S2 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.