Configuring Spanning Tree
Defining Rapid Spanning Tree
Defining Rapid Spanning Tree
While Classic STP prevents Layer 2 forwarding loops in a general network topology, convergence can take between
1.Click Advanced Setup > Spanning Tree > RSTP > RSTP. The RSTP Page opens:
Figure 88: RSTP Page
The RSTP Page contains the following fields:
•Interface — Displays the port or LAG on which Rapid STP is enabled.
•Role — Displays the port role assigned by the STP algorithm to provide to STP paths. The possible field val- ues are:
–Root — Provides the lowest cost path to forward packets to the root switch.
–Designated — The port or LAG through which the designated switch is attached to the LAN.
–Alternate — Provides an alternate path to the root switch from the root interface.
–Backup — Provides a backup path to the designated port path toward the Spanning Tree leaves. Backup ports occur only when two ports are connected in a loop by a
–Disabled — The port is not participating in the Spanning Tree.
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