Stp Timer Hello - HP 6125XLG Command Reference Manual

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
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.
Views
System view
Predefined user roles
network-admin
Parameters
time: Sets the hello time in centiseconds, in the range of 100 to 1000 in increments of 100 (as in 100,
200, 300).
Usage guidelines
Hello time is the time interval at which spanning tree devices send configuration BPDUs to maintain the
spanning tree. If a device fails to receive configuration BPDUs within the set period of time, a new
spanning tree calculation process is triggered due to timeout.
HP recommends not setting the hello time 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
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