5.12.1 Monitor Spanning Tree Bridge Status

The STP Bridges page provides a status overview of all STP bridge instances.

Figure 5-50. STP Bridges

The STP Bridges page has the following parameters:

  • MSTI: The Bridge Instance. This is also a link to the STP Detailed Bridge Status.
  • Bridge ID: The Bridge ID of this Bridge instance
  • Root ID: The Bridge ID of the currently elected root bridge
  • Root Port: The switch port currently assigned the root port role
  • Root Cost: Root Path Cost. For the Root Bridge it is zero. For all other Bridges, it is the sum of the Port Path Costs on the least cost path to the Root Bridge.
  • Topology Flag: The current state of the Topology Change Flag of this Bridge instance
  • Topology Change Last: The time since the last Topology Change occurred