HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 2 - LAN Switching Co - Page 117

stp edged-port

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Parameters instance instance-id: Sets the path cost of the ports in a particular MSTI. The value of instance-id ranges from 0 to 32, where 0 represents the CIST. 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 argument ranges from 1 to 65535. • 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 stp cost to set the path cost of the port or ports. Use undo stp cost 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 only on the interface. 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/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, which results in 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 1/0/3 in MSTI 2 to 200. 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 } View undo stp edged-port Ethernet interface view, Layer 2 aggregate interface view 109

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109
Parameters
instance
instance-id
: Sets the path cost of the ports in a particular MSTI. The value of
instance-id
ranges
from 0 to 32, where 0 represents the CIST.
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
argument ranges
from 1 to 65535.
•
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
stp cost
to set the path cost of the port or ports.
Use
undo stp cost
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 only on the interface.
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/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, which results in
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 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
Ethernet interface view, Layer 2 aggregate interface view