Stp Edged-Port - H3C S5120-SI Series Command Reference Manual

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(s) in the specified MSTI or all MSTIs.
Use the undo stp cost command to restore the system default.
By default, the device automatically calculates the path costs of ports in each MSTI based on the
corresponding standard.
Note that:
Configured in Layer 2 Ethernet port view, the setting takes effect on the current port only;
configured in port group view, the setting takes effect on all ports in the port group.
Configured in Layer 2 aggregate port view, the setting takes effect only on the aggregate port;
configured on a member port in an aggregation group, the setting can take effect only after the port
leaves the aggregation group.
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, thus 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, MSTP will re-compute the role of the port and initiate a state transition.
Related commands: display stp.
Examples
# 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

stp edged-port

Syntax
stp edged-port { enable | disable }
undo stp edged-port
View
Layer 2 Ethernet port view, port group view, Layer 2 aggregate port view
Default Level
2: System level
Parameters
enable: Configures the current port(s) as an edge port or edge ports.
disable: Configures the current port(s) as a non-edge port or non-edge ports.
Description
Use the stp edged-port enable command to configure the port(s) as an edge port or ports.
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