Reference Guide

934 | Stacking
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Manage Redundancy on an S-Series Stack
Reset a Unit on an S-Series Stack
You may reset any stack unit except for the master management unit (Message 2).
Verifying a Stack Configuration
LED Status Indicators on an S4810 or S4820T Stack
The light of the LED status indicator on the front panel identifies the unit’s role in the stack.
For the S4810, the following lists the stacking LED’s status indications:
• Off indicates the unit is a stack member.
• Blinking Green indicates the unit is the stack standby.
Task Command Syntax Command Mode
Reset the current management unit, and make
the standby unit the new master unit. A new
standby is elected. When the former stack
master comes back online, it becomes a
member unit.
redundancy force-failover stack-unit
EXEC Privilege
Prevent the stack master from rebooting after a
failover. This command does not affect a
forced failover, manual reset, or a stack-link
disconnect.
redundancy disable-auto-reboot stack-unit
CONFIGURATION
Display redundancy information.
show redundancy
EXEC Privilege
Message 2 Master Reset Disallowed
% Error: Reset of master unit is not allowed.
Task Command Syntax Command Mode
Reload a stack-unit
reset stack-unit
EXEC Privilege
Reload a member unit, from the unit itself
reset-self
EXEC Privilege
Reset a stack-unit when the unit is in a problem state.
reset stack-unit {hard}
EXEC Privilege
Note: On the S4810, the Stacking LED is located on the I/O side of the unit.