86
Default
The forward delay timer is 15 seconds.
Views
System view
Default command level
2: System level
Parameters
time
: Sets the forward delay (in 0.01 seconds). The value range is 400 to 3000 in increments of 100
(as indicated by 400, 500, 600).
Usage guidelines
The forward delay timer determines the time interval of state transition. To prevent temporary loops,
a spanning tree port goes through the learning (intermediate) state before it transits from the
discarding to the forwarding state. To stay synchronized with the remote device, the port has a wait
period between transition states that is determined by the forward delay timer.
H3C recommends not setting the forward delay with this command. Instead, you can specify the
network diameter of the switched network by using the
stp bridge-diameter
command and let
spanning tree protocols automatically calculate optimal settings of the forward delay timer. If the
network diameter uses the default value, the forward delay timer also uses the default value.
Examples
# In MSTP mode, set the forward delay timer to 20 seconds.
<Sysname> system-view
[Sysname] stp timer forward-delay 2000
Related commands
•
stp timer hello
•
stp timer max-age
•
stp
bridge-diameter
stp timer hello
Use
stp timer hello
to set the hello time of the device.
Use
undo stp timer hello
to restore the default.
Syntax
stp timer hello
time
undo stp
timer hello
Default
The hello time is 2 seconds.
Views
System view
Default command level
2: System level
Parameters
time
: Sets the hello time (in 0.01 seconds). The value range is 100 to 1000 in increments of 100 (as
indicated by 100, 200, 300).
