SMC Networks SMC8724M Manual de usuario Pagina 502

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C
OMMAND
L
INE
I
NTERFACE
4-230
Default Setting
By default, the system automatically detects the speed and duplex mode
used on each port, and configures the path cost according to the values
shown below. Path cost “0” is used to indicate auto-configuration
mode.
Ethernet – half duplex: 2,000,000; full duplex: 1,000,000;
trunk: 500,000
Fast Ethernet – half duplex: 200,000; full duplex: 100,000;
trunk: 50,000
Gigabit Ethernet – full duplex: 10,000; trunk: 5,000
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
Each spanning-tree instance is associated with a unique set of VLAN
IDs.
This command is used by the multiple spanning-tree algorithm to
determine the best path between devices. Therefore, lower values
should be assigned to interfaces attached to faster media, and higher
values assigned to interfaces with slower media.
Path cost takes precedence over interface priority.
Example
Related Commands
spanning-tree mst port-priority (4 -231)
Console(config)#interface ethernet ethernet 1/5
Console(config-if)#spanning-tree mst 1 cost 50
Console(config-if)#
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