Administrator Guide

Disabling Auto-Reboot
To disable auto-reboot, use the following command.
● Prevent a failed stack unit from rebooting after a failover.
CONFIGURATION mode
redundancy disable-auto-reboot
Pre-Configuring a Stack Unit Slot
You may also pre-configure an empty stack unit slot with a logical stack unit.
To pre-configure an empty stack unit slot, use the following command.
● Pre-configure an empty stack unit slot with a logical stack unit.
CONFIGURATION mode
stack-unit unit_id provision S3124
After creating the logical stack unit, you can configure the interfaces on the stack unit as if it is present.
Dell#show system stack-unit 1
-- Unit 1 --
Unit Type : Member Unit
Status : not present
Dell#con
Dell(conf)#stack-unit 1 provision S3124
Dell(conf)#end
Dell#show system stack-unit 1
-- Unit 1 --
Unit Type : Member Unit
Status : not present
Required Type : S3124 - 28-port GE/TE (S3100)
Dell#
Dell(conf)#interface gigabitethernet 1/1
Dell(conf-if-gi-1/1)#
Removing a Provisioned Logical Stack Unit
To remove the line card configuration, use the following command.
● To remove a logical stack-unit configuration, use the following command:
CONFIGURATION mode
no stack-unit unit_id provision
Hitless Behavior
Hitless is a protocol-based system behavior that makes a stack unit failover on the local system transparent to remote systems.
The system synchronizes protocol information on the Management and Standby stack units such that, in the event of a stack
unit failover, it is not necessary to notify the remote systems of a local state change.
Hitless behavior is defined in the context of a stack unit failover only.
● Only failovers via the CLI are hitless. The system is not hitless in any other scenario.
High Availability (HA)
291