Stp Timer Hello - HP 12500 Series Command Reference Manual

Syntax
stp timer forward-delay time
undo stp timer forward-delay
Default
The forward delay timer is 1500 centiseconds.
Views
System view
Predefined user roles
network-admin
mdc-admin
Parameters
time: Sets the forward delay (in centiseconds) in the range of 400 to 3000 in increments of 100 (as
in 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 transitions from
the discarding state 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.
HP 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 the
spanning tree protocols automatically calculate the optimal settings for 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 2000 centiseconds.
<Sysname> system-view
[Sysname] stp timer forward-delay 2000
Related commands
stp bridge-diameter
•

stp timer hello

•
stp timer max-age
•
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 200 centiseconds.
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