Enterasys Networks 9034313-07 manual Set spantree backuproot, Clear spantree backuproot

set spantree backuproot

set spantree backuproot

Use this command to enable or disable the Spanning Tree backup root function on the switch.

Syntax

set spantree backuproot sid {disable enable}

Parameters

sid	Specifies the Spanning Tree instance on which to enable or disable the
	backup root function.Valid values are 0 ‐ 4094.
disable enable	Enables or disables the backup root function.

Defaults

None.

Mode

Switch command, read‐write.

Usage

The Spanning Tree backup root function is disabled by default on the SecureStack C3. When this feature is enabled and the switch is directly connected to the root bridge, stale Spanning Tree information is prevented from circulating if the root bridge is lost. If the root bridge is lost, the backup root will dynamically lower its bridge priority so that it will be selected as the new root over the lost root bridge.

Example

This example shows how to enable the backup root function on SID 2:

C3(rw)->set spantree backuproot 2 enable

clear spantree backuproot

Use this command to reset the Spanning Tree backup root function to the default state of disabled.

Syntax

clear spantree backuproot sid

Parameters

sid	Specifies the Spanning Tree on which to clear the backup root
	function.Valid values are 0 ‐ 4094.

Defaults

None.

Mode

Switch command, read‐write.

9-22 Spanning Tree Configuration