4-23
To do... Use the command... Remarks
Enter system view system-view —
Configure the timeout factor of the device stp timer-factor factor
Required
3 by default
Configuring the Maximum Port Rate
The maximum rate of a port refers to the maximum number of BPDUs the port can send within each
hello time. The maximum rate of a port is related to the physical status of the port and the network
structure.
Make this configuration on the root bridge and on the leaf nodes separately.
Follow these steps to configure the maximum rate of a port or a group of ports:
To do... Use the command... Remarks
Enter system view system-view —
Enter Ethernet interface
view, or Layer 2
aggregate interface
view
interface interface-type
interface-number
Enter
interface
view or port
group view
Enter port group view
port-group manual
port-group-name
Required
Use either command.
Configure the maximum rate of the
ports
stp transmit-limit limit
Required
10 by default
The higher the maximum port rate is, the more BPDUs will be sent within each hello time, and the
more system resources will be used. By setting an appropriate maximum port rate, you can limit the
rate at which the port sends BPDUs and prevent MSTP from using excessive network resources when
the network becomes instable. We recommend that you use the default setting.
Configuring Ports as Edge Ports
If a port directly connects to a user terminal rather than another device or a shared LAN segment, this
port is regarded as an edge port. When a network topology change occurs, an edge port will not cause
a temporary loop. Because a device does not know whether a port is directly connected to a terminal,
you need to manually configure the port to be an edge port. After that, this port can transition rapidly
from the blocked state to the forwarding state without delay.
Make this configuration on the root bridge and on the leaf nodes separately.
Follow these steps to specify a port or a group of ports as edge port or ports:
To do... Use the command... Remarks
Enter system view system-view —
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