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GS700AT Smart Switch Software Administration Manual
4-35 Configuring Switching Settings
v1.0, October 2008
allow a faster STP convergence without creating forwarding loops. The Global System LAG
information displays the same field information as the ports, but represents the LAG RSTP
information.
To define RSTP on the device:
1. Click Switching > STP > Advanced > RSTP. The Rapid STP screen displays:
The Rapid STP screen 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 values 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
point-to-point link, or when a LAN has two or more connections connected to a shared
segment.
– Disabled – The port is not participating in the Spanning Tree.
Figure 4-24