Siemens SCALANCE XC-200 Configuration Manual page 240

Network structures
6.3 Spanning Tree
Note
Dependencies when setting the timing
If you specify the time settings for spanning tree, you need to keep to the following two rules:
● 2 * (forward-time - 1) ≥ max-age
● max-age ≥ 2 * (hello-time + 1)
Result
The selected setting for the time is configured.
Further notes
You reset the time settings to the default values with the no spanning-tree forward-
time, no spanning-tree hello-time or no spanning-tree max-age.
If you call the no spanning-tree command without parameters, you disable the spanning
tree function. The configured time settings are retained.
If you call the restart factory command, the system restarts with the factory configuration
settings All rime settings are reset.
You display these settings and other information with the commands that start with show
spanning-tree ....
no spanning-tree (time settings)
Description
With this command in conjunction with the relevant parameter you reset the time settings of
the spanning tree function to the default values.
If you call the command without parameters, you disable the spanning tree function. The
configured time settings are retained.
If you call the restart factory command, the system restarts with the factory configuration
settings All rime settings are reset.
The default values are as follows:
Parameter
forward-time
hello-time
max-age
Requirement
You are in the Global configuration mode.
240
Default value
15 seconds
2 seconds
20 seconds
SCALANCE XB-200/XC-200/XF-200BA/XP-200/XR-300WG Command Line Interface
Configuration Manual, 07/2017, C79000-G8976-C361-06