Dell 3548 manual Rapid Spanning Tree Rstp

Figure 7-40. Rapid Spanning Tree (RSTP)

The Spanning Tree RSTP page contains the following fields:

•Interface — Port or LAG for which you can view and edit RSTP settings.

•State — Disables RSTP state of the selected interface.

•Role—Indicates the port role assigned by the STP algorithm in order to provide STP paths. The possible field values are:

–Root—Provides the lowest cost path to forward packets to root switch.

–Designated—Indicates that the port or LAG via 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. Backup ports also occur when a LAN has two or more connections connected to a shared segment.

–Disabled—Indicates the port is not participating in the Spanning Tree.

•Mode—Indicates the current Spanning Tree mode. The Spanning Tree mode is selected in the Spanning Tree Global Settings page. The possible field values are:

–Classic STP—Indicates that Classic STP is enabled on the device.

–Rapid STP—Indicates that Rapid STP is enabled on the device.

–Multiple STP—Indicates that Multiple STP is enabled on the device.

340

Configuring Switch Information