Configuring STP on the Switch 95

Table 23 shows the commands used to configure STP.

Table 23 STP Configuration Commands

Command

Description

 

 

create stpd <stpd_name>

Creates an STPD. When created, an STPD has the

 

following default parameters:

 

Bridge priority — 32,768

 

Hello time — two seconds

 

Forward delay — 15 seconds

enable stpd {<stpd_name>}

Enables the STP protocol for one or all STPDs. The

 

default setting is disabled.

enable stpd port {<portlist>}

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.

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>

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.

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3Com 9100 manual Shows the commands used to configure STP, Enable stpd port portlist