Command Manual – MSTP
H3C S7500E Series Ethernet Switches Chapter 1 MSTP Configuration Commands
1-39
Parameters
packet-number: Maximum number of MSTP packets that the port can send within each
hello time, namely the maximum transmission rate of the port, in the range of 1 to 255.
Description
Use the stp transmit-limit command to set the maximum transmission rate of the
port(s).
Use the undo stp transmit-limit command to restore the system default.
By default, the maximum transmission rate of all ports of the device is 10.
Configured in Ethernet interface view, the setting is effective on the current port only;
configured in port group view, the setting is effective on all ports in the port group.
A larger maximum transmission rate value represents more MSTP packets that the port
will send within each hello time, but this means that more device resources will be used.
An appropriate maximum transmission rate setting can prevent MSTP from using an
excessive bandwidth resource during network topology instability.
Examples
# Set the maximum transmission rate of port GigabitEthernet 2/0/1 to 5.
<Sysname> system-view
[Sysname] interface GigabitEthernet 2/0/1
[Sysname-GigabitEthernet2/0/1] stp transmit-limit 5
1.1.42 vlan-mapping modulo
Syntax
vlan-mapping modulo modulo
View
MST region view
Parameters
modulo: Modulo value, in the range of 1 to 31.
Description
Use the vlan-mapping modulo command to map VLANs in the current MST region to
spanning tree instances according to the specified modulo value.
By default, all VLANs are mapped to the CIST (instance 0).
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