ATEN ES0152 User Manual page 211

Chapter 8. Spanning Tree
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 last Topology Change occurred.
STP Port Status
Port:
The switch port number of the logical STP port.
CIST Role:
The current STP port role of the CIST port. The port role can be one of the
following values: AlternatePort, Backup Port, RootPort, DesignatedPort
Disabled.
CIST State:
The current STP port state of the CIST port. The port state can be one of the
following values: Blocking Learning Forwarding.
Uptime:
The time since the bridge port was last initialized.
 Buttons
Auto-refresh:
Check this box to refresh the page automatically. Automatic refresh occurs
every 3 seconds.
Refresh:
Click to refresh the page.
CIST:
197