Specifications

Spanning Tree Configuration Command Set
Reviewing and Setting Spanning Tree Bridge Parameters
SecureStack A2 Configuration Guide 5-37
5.2.1.30 set spantree backuproot
Use this command to enable or disable the Spanning Tree backup root function on the switch. This
feature is disabled by default on the SecureStack A2. When this feature is enabled and the A2 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.
set spantree backuproot sid {disable | enable}
Syntax Description
Command Defaults
None.
Command Mode
Read-Write.
Example
This example shows how to enable the backup root function on SID 2:
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.
A2(rw)->set spantree backuproot 2 enable