Stack Master Election And Re-Election - Cisco Catalyst 3120 Software Manual

Understanding Switch Stacks
Figure 5-3 Adding a Standalone Switch to a Switch Stack
Stack member 1
and stack master
Blade switch
Stack member 2
Blade switch
Stack member 3
Blade switch
1
2
3

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.
2.
3.
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
5-6
Enclosure 1
3
1
Stack member 1
and stack master
Blade switch
Stack member 2
Blade switch
Stack member 3
Blade switch
Blade switch
Blade switch
Blade switch
Stack member 4
Onboard Administrator
Internal Ethernet management port that is not active
Active internal Ethernet management port on the stack master
The internal Ethernet management ports on the stack members are disabled.
Note
The switch that is currently the stack master.
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.
The switch that is not using the default interface-level configuration.
Blade switch
Blade switch
Stack member 1
Blade switch
Enclosure 1
3
Enclosure 2
3
3
2
Chapter 5 Managing Switch Stacks
Enclosure 2
3
1
3
3
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