clear spantree backuproot
Usage
The Spanning Tree backup root function is disabled by default on the SecureStack C2. 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:
C2(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
Defaults
None.
Mode
Switch command, read‐write.
Example
This example shows how to reset the backup root function to disabled on SID 2:
C2(rw)->clear spantree backuproot 2
show spantree tctrapsuppress
Use this command to display the status of topology change trap suppression on Rapid Spanning
Tree edge ports.
Syntax
show spantree tctrapsuppress
Parameters
None.
Defaults
None.
7-22 Spanning Tree Configuration
Specifies the Spanning Tree on which to clear the backup root
function.Valid values are 0 ‐ 4094.