R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

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stp timer-factor
Syntax
stp timer-factor factor
undo stp timer-factor
View
System view
Default level
2: System level
Parameters
factor: Sets the timeout factor, ranging from 1 to 20.
Description
Use stp timer-factor to set the timeout factor, which decides the timeout time.
Timeout time = timeout factor × 3 × hello time.
Use undo stp timer-factor to restore the default.
By default, the timeout factor is 3.
After the network topology is stabilized, each non-root-bridge device forwards configuration BPDUs to
the surrounding devices at the interval of hello time to check whether any link is faulty. If a device does
not receive a BPDU from the upstream device within nine times the hello time, it will assume that the
upstream device has failed and start a new spanning tree calculation process.
In a stable network, this kind of spanning tree calculation may occur because the upstream device is busy.
You can avoid such unwanted spanning tree calculations by lengthening the timeout time, saving the
network resources. HP recommends you to set the timeout factor to 5, 6, or 7 for a stable network.
Related commands: stp timer hello.
Examples
# Set the timeout factor of the device to 7.
<Sysname> system-view
[Sysname] stp timer-factor 7
stp transmit-limit
Syntax
stp transmit-limit limit
undo stp transmit-limit
View
Ethernet interface view, Layer 2 aggregate interface view
Default level
2: System level