26CHAPTER 2: INSTALLING THE SWITCH

Stacking Units

Units in the Switch 1100/3300 family can be stacked together and then

 

treated as a single manageable unit with one IP address.

 

The Matrix Ports on the rear of the Switch allow you to connect a total of

 

four units in the Switch 1100/3300 family together using Matrix Cables.

 

You need only one SuperStack 3 Switch 3300 MM per stack.

 

The Switches in a stack are numbered 1 to 4, from the bottom up, for

 

management purposes. The SuperStack 3 Switch 3300 MM will always

 

be identified as Unit 1 and should therefore be positioned at the bottom

 

of the stack.

Stacking Two Units You can stack a Switch 3300 MM to any Switch from the 1100/3300

family with a single Matrix Cable. To do this:

1Power-off both units.

2Arrange the units so the Switch 3300 MM is at the bottom of the stack. They can be rack-mounted or free-standing; if you choose to have them free-standing, remember to position the rubber feet as detailed in “Placing Units On Top of Each Other” on page 25. When positioning the units, note that Matrix Cables are 1m (3.28ft) long.

3Connect one end of the Matrix Cable to the Matrix Port of the top Switch, and the other end to the Matrix Port marked Unit 2 on the Switch 3300 MM (See Figure 8).

4If you use the management software of the units:

■Ensure that both units have the same version of management software

■Ensure that you re-configure the stack-wide features on both units

For more information about management software, see “Managing the

Switch” on page 32.

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3Com 16985ua.bk manual Stacking Units, Treated as a single manageable unit with one IP address
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