Linksys DSHSNMP User Manual page 20

Currently Selected Hub -- selection [1]
Here, you have an opportunity to select which hub in the stack
you want to manage. Choose an ID number between 1 and 6.
Network Management Module Setup Port Management/Choose Hub
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Each hub in the stack has its own ID number.
Enter the ID number of the hub to configure, or X
to Exit: _
The find a hub's unit number, start with Unit 1 at the top of
the stack and count downwards. In a stack of 6 StackPro II
hubs, Unit 1 is on the top and Unit 6 is on the bottom.
After you have selected the hub that you want to manage,
press X to return to the port management menu.
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