Cisco Systems 3750-E, 3560-E manual Power On Sequence for Switch Stacks

Chapter 2 Switch Installation

Planning a Switch Stack (Catalyst 3750-E Switches)

Figure 2-7 Example of a Stack with a Failover Condition

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Figure 2-8 Example of a Partitioned Stack with a Failover Condition

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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.

Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide

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