Filter
Top Products
2-9
Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
OL-9774-03
Chapter 2 Switch Installation
Planning a Switch Stack (Catalyst 3750-E Switches)
Figure 2-7 Example of a Stack with a Failover Condition
158110
A
B
C
Figure 2-8 Example of a Partitioned Stack with a Failover Condition
158111
A
B
Power On Sequence for Switch Stacks
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
1
minute, power on the other switches in the stack.
• If you have no preference as to which switch becomes the stack master, power on all the switches
in the stack within a 1-minute timeframe. These switches participate in the stack master election.
Switches powered on after the 1-minute 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 conditions that can cause a stack master re-election or to manually elect the stack master, see the
“Managing Switch Stacks” chapter in the switch software configuration guide on Cisco.com.