D-Link DWS-4026 Product Manual - Page 251
Submit, Force, Refresh, MST ID, Priority, VLAN ID, Bridge Identifier, Time Since, Topology, Change
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Software User Manual 12/10/09 D-Link Unified Access System Table 152: Spanning Tree MST Configuration/Status Field MST ID Priority VLAN ID Bridge Identifier Time Since Topology Change Topology Changes Counts Topology Change Designated Root Root Path Cost Root Port Description This is only visible when Create is selected from the MST field drop-down menu. The ID of the MST being created. Valid values for this are between 1 and 4094. Specifies the bridge priority value for the MST. When switches or bridges are running STP, each is assigned a priority. After exchanging BPDUs, the switch with the lowest priority value becomes the root bridge. The bridge priority is a multiple of 4096. If you specify a priority that is not a multiple of 4096, the priority is automatically set to the next lowest priority that is a multiple of 4096. For example if the priority is attempted to be set to any value between 0 and 4095, it will be set to 0. The default priority is 32768.The valid range is 0-61440. This gives a list box of all VLANs on the switch. The VLANs associated with the MST instance which is selected are highlighted on the list. These can be selected or unselected for reconfiguring the association of VLANs to MST instances. The bridge identifier for the selected MST instance. It is made up using the bridge priority and the base MAC address of the bridge. Displays the total amount of time since the last topographic change. The time is displayed in hour/ minute/second format, for example, 5 hours 10 minutes and 4 seconds. Displays the total number of MST state changes that have occurred. Indicates whether a topology change is in progress on any port assigned to the CST. The possible values are True or False. Displays the bridge identifier of the root bridge, which is made up from the bridge priority and the base MAC address of the bridge. Displays the path cost to the Designated Root for this MST instance. Indicates the port to access the Designated Root for this MST instance. • If you make any configuration changes, click Submit to apply the new settings to the switch. • Click Force to force the port to send out 802.1w or 802.1D BPDUs. • Click Refresh to update the screen with most recent data. Document 34CSFP6XXUWS-SWUM100-D7 Configuring Spanning Tree Protocol Page 251