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Configuration procedure
Follow these steps to configure the maximum hop count for an MST region:
To do... Use the command... Remarks
Enter system view
system-view
—
Configure the maximum hop
count of the MST region
stp max-hops hops
Required
By default, the maximum hop
count of an MST region is 20.
The bigger the maximum hop count, the larger the MST region is. Note that only the maximum hop
settings on the switch operating as a region root can limit the size of the MST region.
Configuration example
# Configure the maximum hop count of the MST region to be 30.
<Sysname> system-view
[Sysname] stp max-hops 30
Configuring the Network Diameter of the Switched Network
In a switched network, any two switches can communicate with each other through a specific path
made up of multiple switches. The network diameter of a network is measured by the number of
switches; it equals the number of the switches on the longest path (that is, the path containing the
maximum number of switches).
Configuration procedure
Follow these steps to configure the network diameter of the switched network:
To do... Use the command... Remarks
Enter system view
system-view
—
Configure the network diameter
of the switched network
stp bridge-diameter
bridgenumber
Required
The default network diameter of
a network is 7.
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.
Configuration example
# Configure the network diameter of the switched network to 6.
<Sysname> system-view
[Sysname] stp bridge-diameter 6
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