Stack Mode - Cisco SF500-24 Administration Manual

Stack Management

Stack Mode

Stack Mode
Cisco 500 Series Stackable Managed Switch Administration Guide
Every Sx500 and SG500X device can operate in one of the following modes:
• Standalone—A device does not have a stack port and will not join any
other devices to form a stack. The device operates on its own.
• Native Stacking—A device is capable of joining other devices in native
mode with its stack ports to form a stack. All units in a native stack must be
of the same type (all Sx500 or all SG500X).
Changing the Stack Mode
A device can be switched from native stacking mode to standalone mode (to
remove it from a stack) or vice versa (to prepare it for becoming part of a stack).
Changing the stack mode might affect whether the Startup Configuration is
retained and the switch's system mode (Layer 2 or Layer 3) after reboot.
The startup configuration removal is done via the boot process at reboot.
The Layer 2/Layer 3 system mode of the backup and slaves units are derived from
master unit. This mode can be configured before the reboot process and might be
affected after reboot.
Table 1 describes whether the Startup Configuration and the system mode are
retained after reboot.
Table 1 Switching Stack Mode
Startup
Configuration
The Startup
Standalone
Configuration is
to Native
retained only when
the unit ID is set to
1 (force setting).
Native to
Standalone
Startup
Configuration is
removed.
SG500X
Layer 2/3
Layer 3 mode
is always
supported.
Layer 3 mode
is always
supported.
Sx500
Startup Layer 2/3
Configuration
The Startup
Configuration is
Current mode is
retained only when
retained.
the unit ID is set to
1 (force setting).
If the current
mode is not
Startup specifically set
Configuration is before reboot, the
removed. device is in Layer
2 mode after
reboot.
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