Hitless Stacking Failover Example; Hitless Stacking Switchover - Arris Ruckus ICX 7850 Series Configuration Manual

Hitless Stacking

Hitless stacking switchover

NOTE
Use the no form of the hitless-failover enable command to disable hitless stacking failover once it has been enabled.

Hitless stacking failover example

FIGURE 54 Hitless stacking failover when the active controller fails

Hitless stacking switchover

Hitless stacking switchover is a manually-controlled (CLI-driven) or automatic switchover of the active controller and standby
controller without reloading the stack and without any packet loss to the services and protocols that are supported by hitless
stacking. A switchover is activated by the stack switch-over CLI command. A switchover may also be activated by the priority
command, depending on the configured priority value.
By default, hitless switchover is allowed on systems with FastIron release 08.0.20 or later installed, as long as hitless failover is
configured, and the priority of the two controllers is the same. Hitless switchover behavior is described in
behavior on page 171.
Hitless switchover can be used by a system administrator to perform maintenance on a controller that has been functioning as
the active controller.
For a description of the events that occur during a hitless stacking switchover, refer to
switchover or failover on page 176.
For a description of how hitless stacking switchover affects major system functions, refer to
and services on page 173.
182
Hitless stacking
What happens during a hitless stacking
Supported hitless stacking protocols
Ruckus FastIron Stacking Configuration Guide, 08.0.90
Part Number: 53-1005572-01