Extreme Networks ExtremeWare 7.7, Command Reference Manual

Page: 1592 / 2620

1592 ExtremeWare 7.7 Command Reference Guide
STP Commands
configure stpd ports cost
configure stpd <spanning tree name> ports cost <cost> <portlist>
Description
Specifies the path cost of the port in the specified STPD.
Syntax Description
Default
The switch automatically assigns a default path cost based on the speed of the port, as follows:
• For a 10Mbps port, the default cost is 100.
• For a 100Mbps port, the default cost is 19.
• For a 1000Mbps port, the default cost is 4.
Usage Guidelines
You should not configure any STP parameters unless you have considerable knowledge and experience
with STP. The default STP parameters are adequate for most networks.
On a modular switch,
<portlist>
can be a list of slots and ports. On a stand-alone switch,
<portlist>
can be one or more port numbers. For a detailed explanation of port specification, see “Modular Switch
Numerical Ranges” or “Stand-alone Switch Numerical Ranges” in Chapter 1.
The range for the
cost
parameter is 1 through 65,535. The switch automatically assigns a default path
cost based on the speed of the port.
Example
The following command configures a cost of 100 to ports 1 through 5 in STPD s0 on a stand-alone
switch:
configure stpd s0 ports cost 100 1-5
The following command configures a cost of 100 to slot 2, ports 1 through 5 in STPD s0 on a modular
switch:
configure stpd s0 ports cost 100 2:1-2:5
History
This command was first available in ExtremeWare 2.0.
This command was modified in ExtremeWare 4.0 to support modular switches.
spanning tree name Specifies an STPD name on the switch.
cost Specifies a numerical port cost value. The range is 1 through 65,535.
portlist Specifies one or more ports or slots and ports. On a modular switch, can be a list of slots
and ports. On a stand-alone switch, can be one or more port numbers. May be in the form
1, 2, 3-5, 2:*, 2:5, 2:6-2:8.