Defining MSTP Instance Settings

The MSTP Instance Settings page enables you to configure and view parameters per MST instance. This is the per-instance equivalent to the Configuring STP Status and Global Settings.

To enter MSTP instance settings:

  1. Click Spanning Tree > MSTP Instance Settings. The MSTP Instance Settings page displays.
  2. Enter the parameters.
    • Instance ID--Select an MST instance to be displayed and defined.
    • Included VLAN--Displays the VLANs mapped to the selected instance. The default mapping is that all VLANs are mapped to the common and internal spanning tree (CIST) instance (instance 0).
    • Bridge Priority--Set the priority of this bridge for the selected MST instance.
    • Designated Root Bridge ID--Displays the priority and MAC address of the Root Bridge for the MST instance.
    • Root Port--Displays the root port of the selected instance.
    • Root Path Cost--Displays the root path cost of the selected instance.
    • Bridge ID--Displays the bridge priority and the MAC address of this switch for the selected instance.
    • Remaining Hops--Displays the number of hops remaining to the next destination.
  3. Click Apply. The MST Instance configuration is defined, and the Running Configuration file is updated..