Stp Timer-Factor; Stp Transmit-Limit - HP 3600 v2 Series Command Reference Manual

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, in the range of 1 to 20.
Description
Use stp timer-factor to configure the timeout time by setting the timeout factor.
Timeout time = timeout factor × 3 × hello time.
Use undo stp timer-factor to restore the default.
By default, the timeout factor of the switch is set to 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 (by setting the
timeout factor to 4 or more), 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, port group view, Layer 2 aggregate interface view
Default level
2: System level
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