3Com 16985ua.bk - Manual (Page 26)

26 C HAPTER 2: I NSTALLING THE S WITCH
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:
1 Power-off both units.
2 Arrange 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.
3 Connect 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 ).
4 If 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 .
16985ua.bk Page 26 Thursday, September 7, 2000 9:15 AM