Users Guide

Figure 29. A Two-Aggregator Stack
Stack Management Roles
The stack elects the management units for the stack management.
• Stack master — primary management unit
• Standby — secondary management unit
The master holds the control plane and the other units maintain a local copy of the forwarding databases.
From Stack master you can configure:
• System-level features that apply to all stack members
• Interface-level features for each stack member
The master synchronizes the following information with the standby unit:
• Stack unit topology
• Stack running configuration (which includes LACP, SNMP, etc.)
• Logs
The master switch maintains stack operation with minimal impact in the event of:
Stacking
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