HP VPN Firewall Appliances Network Management Command Reference

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stp timer forward-delay
Use stp timer forward-delay to set the forward delay timer of the device.
Use undo stp timer forward-delay to restore the default.
Syntax
stp timer forward-delay time
undo stp timer forward-delay
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), ranging from 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.
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 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 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