5 port channel troubleshooting, Hannel, Roubleshooting – QTECH QSW-3400 Инструкция по настройке User Manual

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Switch1(config)#interface ethernet 1/1
Switch1(Config-If-Ethernet1/1)#port-group 1 mode on
Switch1(Config-If-Ethernet1/1)#exit
Switch1(config)#interface ethernet 1/2
Switch1 (Config-If-Ethernet1/2)#port-group 1 mode on
Switch1 (Config-If-Ethernet1/2)#exit
Switch1 (config)#interface ethernet 1/3
Switch1 (Config-If-Ethernet1/3)#port-group 1 mode on
Switch1 (Config-If-Ethernet1/3)#exit
Switch1 (config)#interface ethernet 1/4
Switch1 (Config-If-Ethernet1/4)#port-group 1 mode on
Switch1 (Config-If-Ethernet1/4)#exit

Switch2#config
Switch2(config)#port-group 2
Switch2(config)#interface ethernet 1/6
Switch2 (Config-If-Ethernet1/6)#port-group 2 mode on
Switch2 (Config-If-Ethernet1/6)#exit
Switch2 (config)#interface ethernet 1/8-10
Switch2(Config-If-Port-Range)#port-group 2 mode on
Switch2(Config-If-Port-Range)#exit

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 j

oined forcedly, switch in other ends won’t exchange LACP PDU to complete

aggregation. Aggregation finishes immediately when the command to add port 1/2 to port-

group 1 is entered, port 1 and port 2 aggregate to be port-channel 1, when port 1/3 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 1/4 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.

10.5 Port Channel Troubleshooting

If problems occur when configuring port aggregation, please first check the following for

causes.

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