H3C S7500E Series Command Reference

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automatically adjust the hello time according to the network size. When the network diameter is the
default value, the hello time is also set to the default.
Related commands: stp timer forward-delay, stp timer max-age, and stp bridge-diameter.
Examples
# Set the hello time of the device to 400 centiseconds.
<Sysname> system-view
[Sysname] stp timer hello 400
stp timer max-age
Syntax
stp timer max-age time
undo stp timer max-age
View
System view
Default Level
2: System level
Parameters
time: Max age in centiseconds, ranging from 600 to 4000 at the step of 100.
Description
Use the stp timer max-age command to set the max age timer of the device.
Use the undo stp timer max-age command to restore the system default.
By default, the max age is set to 2,000 centiseconds.
The max age is used to detect configuration BPDU timeout. In the CIST, the device determines
whether a configuration BPDU received on a port has expired based on the max age timer. If a port
receives a configuration BPDU that has expired, that MSTI needs to be re-calculated. The max age is
meaningless for MSTIs.
Generally, H3C does not recommend you to set the max age by using this command. Instead, you can
use the stp bridge-diameter command to set the network diameter, and then the network will
automatically adjust the max age according to the network size. When the network diameter is the
default value, the max age is also set to the default.
Related commands: stp timer forward-delay, stp timer hello, and stp bridge-diameter.
Examples
# Set the max age timer of the device to 1,000 centiseconds.
<Sysname> system-view
[Sysname] stp timer max-age 1000
stp timer-factor
Syntax
stp timer-factor factor
undo stp timer-factor

H3C S7500E Series Specifications

General

Brand	H3C
Model	S7500E Series
Category	Switch
Language	English