86
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter Layer 2 Ethernet or
aggregate interface view.
interface
interface-type
interface-number
N/A
3. Configure the BPDU
transmission rate of the
ports.
stp transmit-limit
limit The default setting is 10.
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 determine whether a port is directly connected
to a terminal, you must manually configure the port as an edge port. After that, the port can rapidly
transit from the blocked state to the forwarding state.
Configuration restrictions and guidelines
• If BPDU guard is disabled, a port set as an edge port becomes a non-edge port again if it
receives a BPDU from another port. 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 quickly transit to the forwarding state when ensuring
network security.
• On a port, the loop guard function and the edge port setting are mutually exclusive.
Configuration procedure
To configure a port as an edge port:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter Layer 2 Ethernet or
aggregate interface view.
interface
interface-type
interface-number
N/A
3. Configure the current ports
as edge ports.
stp
edged-port
By default, all ports are
non-edge ports.
Configuring path costs of ports
Path cost is a parameter related to the rate of a port. On a spanning tree device, a port can have
different path costs in different MSTIs. Setting appropriate path costs allows VLAN traffic flows to be
forwarded along different physical links, achieving VLAN-based load balancing.
You can have the device automatically calculate the default path cost, or you can configure the path
cost for ports.
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