Creating a spanning tree group

On a Passport 1000 Series switch or a Passport 8600 switch, you can create new STGs. The BayStack switches and the Business Policy Switch 2000 support only one STG per switch.

To create a new spanning tree group:

1. From the navigation tree, highlight the first Network folder and do one of the following:
• From the VLAN Manager menu bar, choose Edit > Insert.
• On the VLAN Manager toolbar, click Insert.

The New STG dialog box opens.

2. Insert values or select options in the option boxes.
3. Click Ok.

The following table describes the items in the New STG dialog box. Item Description Id A number between 1 and 25 that identifies the new spanning tree group (STG) configured on the network. TaggedBpduAddress A MAC address, specifically for tagged BPDUs. TaggedBpduVlanId The VLAN tag associated with the STG. This ID is used to tag BPDUs through a non-IEEE tagging bridge to another Passport or BayStack switch. Priority STP bridge priority, in decimal. The range is 0 (highest priority) to 65535 (lowest priority). The default is 32768. BridgeMaxAge Value in hundredths of a second that all bridges use for MaxAge when this bridge is acting as the root. Note: The 802.1D-1990 standard specifies that the range for this parameter is related to the value of dot1dStpBridgeHelloTime. The default is 2000 (20 seconds). BridgeHelloTime Value in hundredths of a second that all bridges use for Hello Time when this bridge is acting as the root. The granularity of this timer is specified by the IEEE 802.1D-1990 standard to be in increments of 1/100 of a second. The default is 200 seconds. BridgeForwardDelay Value in hundredths of a second that all bridges use for Forward Delay when this bridge is acting as the root. The default is 1500 (15 seconds). Enable Stp Enables or disables the spanning tree algorithm for the spanning tree group. Enable Stp Traps Enables SNMP traps to be sent to trace receiver every time an STP topology change occurs. Select All Selects all of the devices on the device list. Clear All Deselects all of the devices on the device list. OK Applies your settings and closes the dialog box. Cancel Discards your settings and closes the dialog box. Help Opens Optivity Switch Manager online Help in a Web browser window.

See also:

• Managing spanning tree groups (STGs)