H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 72)

63
To do... Use the command... Remarks
Enter interface view
Enter Ethernet interface view or Layer 2
aggregate interface view
interface interface-type interface-number
Required
Use either command.
Enter port group view
port-group manual port-group-name
Configure the maximum rate of the
ports
stp transmit-limit limit
Required
10 by default.
NOTE:
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 spanning tree protocols from using excessive network resources
when the network becomes instable. H3C recommends you to use the default setting.
Configuring 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 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 must 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.
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 —
Enter interface view
Enter Ethernet interface view or Layer 2
aggregate interface view
interface interface-type interface-number
Enter port group view
port-group manual port-group-name
Required
Use either command.
Configure the current
ports as edge ports
stp edged-port enable
Required
All ports are non-edge ports by
default.
NOTE:
•
With BPDU guard disabled, when a port set as an edge port receives a BPDU from another port, it will
become a non-edge port again. To restore the edge port, re-enable it.
• If a port directly connects to a user terminal, configure it as an edge port and enable BPDU guard for it.
This enables the port to transition to the forwarding state fast while ensuring network security.
• You cannot configure edge port settings and loop guard on a port at the same time.