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R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

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• With the IEEE 802.1t standard selected for path cost calculation, the cost argument ranges from 1
to 200000000.
• With the private standard selected for path cost calculation, the cost argument ranges from 1 to
200000.
Description
Use the stp cost command to set the path cost of the port or ports.
Use the undo stp cost command to restore the default.
By default, the device automatically calculates the path costs of ports in each spanning tree based on the
corresponding standard.
Configured in Ethernet interface view, the setting takes effect on the interface only.
Configured in Layer 2 aggregate interface view, the setting takes effect only on the aggregate interface.
Configured on a member port in an aggregation group, the setting takes effect only after the port leaves
the aggregation group.
To set the path cost of an MSTP port in a specific MSTI, use this command with the MSTI specified. To set
the path cost of an MSTP port in the CIST or an STP or RSTP port, use this command without specifying
any MSTI.
Path cost is an important factor in spanning tree calculation. Setting different path costs for a port in
MSTIs allows VLAN traffic flows to be forwarded along different physical links, achieving VLAN-based
load balancing.
The path cost setting of a port can affect the role selection of the port. When the path cost of a port is
changed, the system will re-calculate the role of the port and initiate a state transition.
Related commands: display stp and stp pathcost-standard.
Examples
# In MSTP mode, set the path cost of port GigabitEthernet 0/3 in MSTI 2 to 200.
<Sysname> system-view
[Sysname] interface GigabitEthernet 0/3
[Sysname-GigabitEthernet0/3] stp instance 2 cost 200
stp edged-port
Syntax
stp edged-port { enable | disable }
undo stp edged-port
View
Ethernet interface view, Layer 2 aggregate interface view
Default level
2: System level
Parameters
enable: Configures the ports as edge ports.
disable: Configures the ports as non-edge ports.