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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.
Syntax
stp [ instance instance-id | vlan vlan-list ] cost cost
undo stp [ instance instance-id | vlan vlan-list ] cost
View
Ethernet interface view, port group view, Layer 2 aggregate interface view
Default level
2: System level
Parameters
instance instance-id: Sets the path cost of the ports in a particular MSTI. The value of instance-id is in the
range of 0 to 31, where 0 represents the CIST.
vlan vlan-list: Specifies a VLAN list in the format of vlan-list = { vlan-id [ to vlan-id ] }&<1-10>, where the
vlan-id parameter represents the VLAN ID, in the range of 1 to 4094, and &<1-10> indicates that you can
specify up to 10 VLAN IDs or VLAN ID ranges.
cost: Specifies the path cost of the port, with an effective range that depends on the path cost calculation
standard adopted:
With the IEEE 802.1d-1998 standard selected for path cost calculation, the cost parameter is in the
range of 1 to 65,535.
With the IEEE 802.1t standard selected for path cost calculation, the cost parameter is in the range
of 1 to 200,000,000.
With the private standard selected for path cost calculation, the cost parameter is in the range of 1
to 200,000.
Examples
# In MSTP mode, set the path cost of port GigabitEthernet 1/0/3 in MSTI 2 to 200.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/3
[Sysname-GigabitEthernet1/0/3] stp instance 2 cost 200
# In PVST mode, set the path cost of port GigabitEthernet 1/0/3 in VLAN 2 to 200.
<Sysname> system-view
[Sysname] stp mode pvst
[Sysname] interface gigabitethernet 1/0/3
[Sysname-GigabitEthernet1/0/3] stp vlan 2 cost 200
stp edged-port
Description
Use the stp edged-port enable command to configure the ports as edge ports.
Use the stp edged-port disable command to configure the ports as non-edge ports.
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