Cisco Catalyst 3120 User Manual

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Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
OL-12247-01
Chapter 5 Managing Switch Stacks
Understanding Switch Stacks
Figure 5-3 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.
1 Onboard Administrator
2 Internal Ethernet management port that is not active
3 Active internal Ethernet management port on the stack master
Note The internal Ethernet management ports on the stack members are disabled.
Blade switch
Blade switch
Blade switch
1
3
Blade switch
Blade switch
Blade switch
Blade switch
Blade switch
Blade switch
3
Blade switch
Blade switch
Blade switch
1
3
3
3
2
Enclosure 1 Enclosure 2
Enclosure 1
Enclosure 2
Stack member 2
Stack member 3
Stack member 1
2
01913
Stack member 1
and stack master
Stack member 1
and stack master
Stack member 2
Stack member 3
Stack member 4
3
3

Cisco Catalyst 3120 Specifications

General

Brand	Cisco
Model	Catalyst 3120
Category	Switch
Language	English