Spanning-Tree Forward-Time - Fujitsu XG2000 Series User Manual

XG2000 series User's Guide

5.11.6 spanning-tree forward-time

Function
The forward delay time of the Spanning Tree is the time required for the ports to change to a forwarding state.
Use the no form to return to the default setup.
Prompt
xg(config)#
Command syntax
spanning-tree forward-time <4-30>
no spanning-tree forward-time
Parameter
forward-time <4-30>
Specifies the forward delay time for the Spanning Tree in seconds. Values can be set in the
range of 4 to 30 seconds.
Command type
Configuration command
Default
15 seconds
Message
% Can't set forward-time.
Explanation
An unsettable value was specified. The settable range of "forward-time" differs depending
on the values of "hello-time" and "max-age".
Solution
Set a value, which satisfies the conditions in this Section's Notes.
Note
The settable range of forward delay time differs depending on the values set with the "spanning-tree hell-time"
command and the "spanning-tree max-age" command. The value must also satisfy the following conditions:
2
max_age ≥ 2
Example
Specify the forward delay time value to 17 seconds.
xg(config)# spanning-tree forward-time 17
(forward_time - 1) ≥ max_age
(hello_time + 1)
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