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GS700TR Smart Switch Software Administration Manual
3-28 Configuring Switching Information
v1.0, May, 2008
To display the Spanning Tree MST Configuration page:
1. Click Switching > STP > Advanced > MST Configuration in the navigation tree. Use this
page to create and configure a new MST or select an existing MST to display or configure.
Figure 3-19
Table 3-19. Spanning Tree MST Configuration
Field Description
MST ID This is only visible when the select option of the MST ID select box is selected. The
ID of the MST being created. Valid values for this are between 1 and 4094.
Priority 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.
VLAN ID 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.
Bridge Identifier The bridge identifier for the selected MST instance. It is made up using the bridge
priority and the base MAC address of the bridge.
Time Since
Topology
Change
Displays the total amount of time since the topology of the selected MST instance
last changed. The time is displayed in hour/minute/second format, for example, 5
hours 10 minutes and 4 seconds.
Topology
Change Count
Displays the total number of times topology has changed for the selected MST
instance.
Topology
Change
Indicates whether a topology change is in progress on any port assigned to the
selected MST instance. The possible values are True or False.
Designated
Root
Displays the bridge identifier of the root bridge, which is made up from the bridge
priority and the base MAC address of the bridge.