HP VPN Firewall Appliances Network Management Command Reference

113
Parameters
time: Sets the max age (in 0.01 seconds), ranging from 600 to 4000 in increments of 100 (as indicated
by 600, 700, 800).
Usage guidelines
In the CIST of an MSTP network, the device determines whether a configuration BPDU received on a port
has expired based on the max age timer. If yes, a new spanning tree calculation process starts. The max
age timer does not take effect on other MSTIs except MSTI 0 (or the CIST).
HP recommends not setting the max age timer 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 max age timer. If the network diameter uses the
default value, the max age timer also uses the default value.
Examples
# In MSTP mode, set the max age timer to 10 seconds.
<Sysname> system-view
[Sysname] stp timer max-age 1000
Related commands
• stp bridge-diameter
• stp timer forward-delay
• stp timer hello
stp timer-factor
Use stp timer-factor to configure the timeout time by setting the timeout factor.
Use undo stp timer-factor to restore the default.
Syntax
stp timer-factor factor
undo stp timer-factor
Default
The timeout factor of the device is set to 3.
Views
System view
Default command level
2: System level
Parameters
factor: Sets the timeout factor, ranging from 1 to 20.
Usage guidelines
Timeout time = timeout factor × 3 × hello time.
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