TP-Link TL-SL3452 - Manual (Page 67)

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Figure 85: STP Interface Settings Page
The STP Interface Settings Page contains the following
fields:
Interface — The interface for which the information is
displayed.
STP Status — Indicates if STP is enabled on the port.
The possible field values are:
– Enabled — Enables the STP on the port.
– Disabled — Disables the STP on the port.
Fast Link — Indicates if Fast Link is enabled on the
port. If Fast Link mode is enabled for a port, the Port
State is automatically placed in the Forwarding state when the port link is up. Fast Link optimizes the STP protocol
convergence. STP convergence can take 30-60 seconds in large networks.
Root Guard — Prevents devices outside the network core from being assigned the spanning tree root.
Port State — Displays the current STP state of a port. If enabled, the port state determines what forwarding action is
taken on traffic. Possible port states are:
– Disabled — Indicates that STP is currently disabled on the port. The port forwards traffic while learning MAC
addresses.
– Blocking — Indicates that the port is currently blocked and cannot forward traffic or learn MAC addresses. Blocking is
displayed when Classic STP is enabled.
Speed — Indicates the speed at which the port is operating.
Path Cost — Indicates the port contribution to the root path cost. The path cost is adjusted to a higher or lower value,
and is used to forward traffic when a path is re-routed.
Priority — Indicates the priority value of the port. The priority value influences the port choice when a bridge has two
ports connected in a loop. The priority value is between 0 -240. The priority value is determined in increments of 16.
Designated Bridge ID — Indicates the bridge priority and the MAC Address of the designated bridge.
Designated Port ID — Indicates the selected port priority and interface.
Designated Cost — Indicates the cost of the port participating in the STP topology. Ports with a lower cost are less likely
to be blocked if STP detects loops.
Forward Transitions — Indicates the number of times the port has changed from Forwarding state to Blocking state.
LAG — Indicates the LAG to which the port belongs.
To modify the STP settings:
1. Click
. The STP Interface Settings Page opens.
Figure 86: STP Interface Settings Page
2. Click the STP enable checkbox.
3. Define the fields.
4. Click . The settings for the selected interface
are modified, and device information is updated.
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