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Now, switch B becomes a member switch.
# On Switch C, configure local port GigabitEthernet 1/0/1 connecting with Switch B as a stack port.
Select IRF from the navigation tree of Switch C to enter the page of the Setup tabe.
e. Configure a stack port on Switch C
In the Port Settings area, select the check box before GigabitEthernet1/0/1.
Click Enable.