Command Line Interface
7991553-KDU 137 365 Uen D 2006-06-16
7.15.3 spanning-tree forward-time
This command configures the spanning tree bridge forward time globally for the
ECN330-switch. Use the no form to restore the default.
Syntax
spanning-tree forward-time <seconds>
no spanning-tree forward-time
seconds - Time in seconds. (Range: 4 - 30 seconds)
The minimum value is calculated as (max-age / 2) + 1, though never less
than 4.
Default Setting
15 seconds
Command Mode
Global Configuration
Command Usage
This command sets the maximum time (in seconds) the root device will wait
before changing states (that is, discarding to learning to forwarding). This
delay is required because every device must receive information about
topology changes before it starts to forward frames. In addition, each port
needs time to listen for conflicting information that would make it return to
the discarding state; otherwise, temporary data loops might result.
Example
Related Commands
spanning-tree hello-time (section 7.15.4 on page 800)
spanning-tree max-age (section 7.15.5 on page 801)
Console(config)#spanning-tree forward-time 20
Console(config)#
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