Intel 480T, User Manual

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C H A P T E R 7 Spanning Tree* Protocol (STP)
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Table 28 lists the commands used to configure STP.
Table 28: STP Configuration Commands
Command Description
config stpd <stpd_name> add vlan <name> Adds a VLAN to the STPD.
config stpd <stpd_name> forwarddelay
<value> Specifies the time (in seconds) that the ports in
this STPD spend in the listening and learning
states when the switch is the Root Bridge.
The range is 4 through 30. The default setting is
15 seconds.
config stpd <stpd_name> hellotime
<value> Specifies the time delay (in seconds) between
the transmission of BPDUs from this STPD
when it is the Root Bridge.
The range is 1 through 10. The default setting is
2 seconds.
config stpd <stpd_name> maxage <value> Specifies the maximum age of a BPDU in this
STPD.
The range is 6 through 40. The default setting is
20 seconds.
Note that the time must be greater than, or equal
to 2 * (Hello Time + 1) and less than, or equal
to 2 * (Forward Delay –1).
config stpd <stpd_name> port cost <value>
<portlist> Specifies the path cost of the port in this STPD.
The range is 1 through 65,535. 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.
config stpd <stpd_name> port priority
<value> <portlist> Specifies the priority of the port in this STPD.
By changing the priority of the port, you can
make it more or less likely to become the Root
Port.
The range is 0 through 31. The default setting is
16. A setting of 0 indicates the lowest priority.