QTECH QSW-3400 Инструкция по настройке - Manual (Page 417)

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Switch(Config)#interface ethernet 1/1
Switch(config-If-Ethernet1/1)# ulpp group 1 master
Switch(config-If-Ethernet1/1)#exit
Switch(Config)#interface Ethernet 1/2
Switch(config-If-Ethernet1/2)# ulpp group 1 slave
Switch(config-If-Ethernet1/2)#exit
SwitchB configuration task list:
Switch(Config)#ulsm group 1
Switch(Config)#interface ethernet 1/1
Switch(config-If-Ethernet1/1)#ulsm group 1 downlink
Switch(config-If-Ethernet1/1)#exit
Switch(Config)#interface ethernet 1/3
Switch(config-If-Ethernet1/3)#ulsm group 1 uplink
Switch(config-If-Ethernet1/3)#exit
SwitchC configuration task list:
Switch(Config)#ulsm group 1
Switch(Config)#interface ethernet 1/2
Switch(config-If-Ethernet1/2)#ulsm group 1 downlink
Switch(config-If-Ethernet1/2)#exit
Switch(Config)#interface ethernet 1/4
Switch(config-If-Ethernet1/4)#ulsm group 1 uplink
Switch(config-If-Ethernet1/4)#exit
55.4 ULSM Troubleshooting

With the normal configuration, if the downlink port does not responds the down event of
the uplink port, please enable the debug function of ULSM, copy the debug information
of 3 minutes and the configuration information, and send them to our technical service
center.