3com S7906E Guide De Référence

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Configured in 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 the member port in an aggregation group, the setting can take effect only after the 
port leaves the aggregation group. For detailed information about link aggregation, refer to Link 
Aggregation Configuration in the Access Volume.  
If you set instance-id to 0, you are setting the path cost of the port in the CIST. The path cost setting 
of a port can affect the role selection of the port. Setting different path costs for the same port in 
different MSTIs allows different VLAN traffic flows to be forwarded along different physical links, 
thus to enable VLAN-based load balancing. When the path cost of a port is changed, MSTP will 
re-compute the role of the port and initiate a state transition.  
If you do not provide instance instance-id, your configuration will take effect in the CIST instance 
only.  
Examples 
# Set the path cost of port GigabitEthernet 2/0/3 in MSTI 2 to 200.  
<Sysname> system-view 
[Sysname] interface GigabitEthernet 2/0/3 
[Sysname-GigabitEthernet2/0/3] stp instance 2 cost 200 
stp edged-port 
Syntax 
stp edged-port { enable | disable } 
undo stp edged-port 
View 
Ethernet port view, port group view, Layer-2 aggregate port view 
Default Level 
2: System level 
Parameters 
enable: Configures the current port(s) to be an edge port or edge ports.  
disable: Configures the current port(s) to be a non-edge port or non-edge ports.  
Description 
Use the stp edged-port enable command to configure the port(s) to be an edge port or edge ports.  
Use the stp edged-port disable or undo stp edged-port enable command to configure the port(s) to 
be a non-edge port or non-edge ports.  
All Ethernet ports are non-edge ports by default.  
Note that: 
Configured in 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 the member port in an aggregation group, the setting can take effect only after the