3Com 9100 User Manual page 95

Table 23 STP Configuration Commands
Command
create stpd <stpd_name>
enable stpd {<stpd_name>}
enable stpd port {<portlist>}
config stpd <stpd_name> add vlan
<name>
config stpd <stpd_name> hellotime
<value>
config stpd <stpd_name>
forwarddelay <value>
config stpd <stpd_name> maxage
<value>
config stpd <stpd_name> priority
<value>
(continued)
Table 23 shows the commands used to configure STP.
Description
Creates an STPD. When created, an STPD has the
following default parameters:
Bridge priority — 32,768
Hello time — two seconds
Forward delay — 15 seconds
Enables the STP protocol for one or all STPDs. The
default setting is disabled.
Enables the STP protocol on one or more ports. If
STPD is enabled for a port, Bridge protocol Data
Units (BPDUs) will be generated on that port if STP is
enabled for the associated STPD. The default setting
is enabled.
Adds a VLAN to the STPD.
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.
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.
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).
Specifies the priority of the STPD. By changing the
priority of the STPD, you can make it more or less
likely to become the Root Bridge.
The range is 0 through 65,535. The default setting
is 32,768. A setting of 0 indicates the highest
priority.
Configuring STP on the Switch 95