Cisco 3750G - Catalyst Integrated Wireless LAN Controller

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Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 5 Managing Switch Stacks
Understanding Switch Stacks
Figure 5-1 Creating a Switch Stack from Two Standalone Switches
Figure 5-2 Adding a Standalone Switch to a Switch Stack
Stack Master Election and Re-Election
The stack master is elected or re-elected based on one of these factors and in the order listed:
1. The switch that is currently the stack master.
2. The switch with the highest stack member priority value.
Note We recommend assigning the highest priority value to the switch that you prefer to be the
stack master. This ensures that the switch is re-elected as stack master if a re-election occurs.
3. The switch that is not using the default interface-level configuration.
4. The switch with the higher priority switch software version. These switch software versions are
listed from highest to lowest priority:
– Cryptographic IP services image software
– Noncryptographic IP services image software
– Cryptographic IP base image software
– Noncryptographic IP base image software
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Stack member 1 Stack member 1
Stack member 1
Stack member 2
and stack master
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Stack member 1
Stack member 2
and stack master
Stack member 3
Stack member 4
Stack member 1
Stack member 2
and stack master
Stack member 3
Stack member 1