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Side-By-Side Stacking

In this example, eight switches are stacked side-by-side with redundant connections by using 0.5- and

3-meter StackWise cables.

In this example, nine switches are stacked side-by-side with redundant connections by using 0.5- and

3-meter StackWise cables.

Consider these guidelines before you power on the switches in a stack:

• The sequence in which the switches are first powered on might affect the switch that becomes the

stack master.

• If you want a particular switch to become the stack master, power on that switch first. This switch

becomes the stack master and remains the stack master until a master re-election is required. After

20 seconds, power on the remaining switches in the stack.

• If you have no preference for which switch becomes the stack master, power on all the switches in

the stack within a 20-second timeframe. These switches participate in the stack master election.

Switches powered on after the 20-second timeframe do not participate in the election.

• Power off a switch before you add it to or remove it from an existing switch stack.

For more information on stack master elections, see the "Managing Switch Stacks" chapter in the

switch software configuration guide.