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.

Mode—Displays the current STP mode. The STP mode is selected in the Rapid STP Page. The possible field values are:

STP — Classic STP is enabled on the device.

Rapid STP — Rapid STP is enabled on the device.

Multiple STP — Multiple STP is enabled on the device.

Fast Link Operational Status — Indicates whether Fast Link is enabled or disabled for the port or LAG. If Fast Link is enabled for a port, the port is automatically placed in the forwarding state.

Port Status — Displays the current RSTP state of a port. If enabled, the port state determines what forwarding action is taken on traffic. Possible port states are:

Forwarding — Indicates that the port can forward traffic or learn MAC addresses.

Disabled — Indicates that STP is currently disabled on the port. The port forwards traffic while learning MAC addresses.

Discarding Indicates that the port is currently blocked and cannot forward traffic or learn MAC addresses

Point-to-Point Operational Status — Displays the point-to-point operating state.

Activate Protocol Migration — Indicates whether sending Link Control Protocol (LCP) packets to configure and test the data link is enabled.

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Intel manual Intel Gigabit Ethernet Switch AXXSW1GB User Guide