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Spanning-tree cost, Spanning-tree cost -122 – SMC Networks SMC EZ 10/100/1000 SMCGS8P-Smart User Manual

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spanning-tree cost

Use this command to configure the Spanning Tree path cost for the
specified interface. Use the no form to restore the default.

Syntax

spanning-tree cost cost
no spanning-tree cost

cost - The path cost for the interface.
(Range – 1-200,000,000)
The recommended range is -

- Ethernet: 200,000-20,000,000

- Fast Ethernet: 20,000-2,000,000
- Gigabit Ethernet: 2,000-200,000

Default Setting

• 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

• This command is used by the Spanning-Tree Protocol 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.

• When the Spanning-Tree pathcost method is set to short, the

maximum value for path cost is 65,535.

b_mgmt.book Page 122 Tuesday, July 8, 2003 5:24 PM