H3C S3100 8C SI User Manual

Operation Manual – MSTP
H3C S3100 Series Ethernet Switches Chapter 1 MSTP Configuration
1-28
The network diameter parameter indicates the size of a network. The bigger the
network diameter is, the larger the network size is.
After you configure the network diameter of a switched network, an MSTP-enabled
switch adjusts its hello time, forward delay, and max age settings accordingly to better
values.
The network diameter setting only applies to CIST; it is invalid for MSTIs.
II. Configuration example
# Configure the network diameter of the switched network to 6.
<Sysname> system-view
[Sysname] stp bridge-diameter 6
1.3.9 Configuring the MSTP Time-related Parameters
Three MSTP time-related parameters exist: forward delay, hello time, and max age.
You can configure the three parameters to control the process of spanning tree
calculation.
I. Configuration procedure
Table 1-17 Configure MSTP time-related parameters
Operation Command Description
Enter system view
system-view
—
Configure the forward
delay parameter
stp timer
forward-delay
centiseconds
Required
The forward delay parameter
defaults to 1,500 centiseconds
(namely, 15 seconds).
Configure the hello
time parameter
stp timer hello
centiseconds
Required
The hello time parameter defaults to
200 centiseconds (namely, 2
seconds).
Configure the max age
parameter
stp timer max-age
centiseconds
Required
The max age parameter defaults to
2,000 centiseconds (namely, 20
seconds).
All switches in a switched network adopt the three time-related parameters configured
on the CIST root bridge.

H3C S3100 8C SI Specifications

General

Brand	H3C
Model	S3100 8C SI
Category	Switch
Language	English