3Com 3CRDSF9PWR manual Spanning Tree Summary

156CHAPTER 11: CONFIGURING SPANNING TREE

Viewing The Spanning Tree Summary Page displays the current Spanning Tree Spanning Tree parameters for all ports.

To view Spanning Tree Summary:

1Click Device > Spanning Tree > Summary. The Spanning Tree Summary Page opens:

Figure 81 Spanning Tree Summary Page

The Spanning Tree Summary Page contains the following fields:

■Port — Indicates the interface for which the information is displayed.

■Status — Indicates if STA is enabled on the port. The possible field values are:

■Enabled — Indicates that STA is enabled on the port.

■Disabled — Indicates that STA is disabled on the port.

■Path Cost — Indicates the port contribution to the root path cost. The path cost can be adjusted to a higher or lower value, and is used to determine the path used to forward traffic when a path is re-routed.

■Edge Port — Indicates if fast forwarding is enabled on the port. If enabled, the port is automatically placed in the Forwarding state when the port link is up. Edge Port optimizes STA protocol topology convergence, retains the current forwarding database to reduce the amount of frame flooding required to rebuild address tables during reconfiguration events, does not cause the spanning tree to