FS728TP Smart Switch Software Administration Manual
4-40 Configuring Switching Settings
v1.1, September 2009
– Disabled — Indicates that STP is currently disabled on the port.
– Blocking — Indicate s that the port is currently bloc ked and cannot forward traffic or
learn MAC addresses.
– Listening — Indicates that the port is in Listening mode. The port cannot forward
traffic nor can it learn MAC addresses.
– Learning — Indicates that the port is in Learning mode. The port cannot forward
traffic, however it can learn new MAC addresses.
– Forwarding — Indicates that the port is in Forwarding mode. The port can forward
traffic and learn new MAC addresses.
– Broken — Indicates that the port is currently in the Broken mode as the bridge
detected a malfunction. The port cannot forward traffic nor can it learn MAC
addresses.
•Port Role – Indicates 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 device.
– Designated – Indicates the port or LAG through which the designated device is
attached to the LAN.
– Alternate – Provides an alternate path to the root device 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 – Indicates the port is not participating in the Spanning Tree.
– Master – Indicates the port provides connectivity from the MSTP region to the
outlying CIST root.
• Designated Cost – Indicates that the default path cost is assigned according to the method
selected on the STP Configuration screen.
•Designated Bridge – Displays the ID of the bridge that connects the link or shared LAN
to the root.
• Designated Port – Displays the ID of the port on the designated bridge that connects the
link or the shared LAN to the root.
2. Select an MST to be displayed