TP-Link TL-SL5428E User Manual page 98

Port Select:
Select:
Port:
Status:
Priority:
ExtPath:
IntPath:
Edge Port:
P2P Link:
MCheck:
STP Version:
Port Role:
Port Status:
LAG:
Click the Select button to quick-select the corresponding port based
on the port number you entered.
Select the desired port for STP configuration. It is multi-optional.
Displays the port number of the switch.
Select Enable /Disable STP function for the desired port.
Enter a value from 0 to 240 divisible by 16. Port priority is an important
criterion on determining if the port connected to this port will be chosen
as the root port. The lower value has the higher priority.
ExtPath Cost is used to choose the path and calculate the path costs
of ports in different MST regions. It is an important criterion on
determining the root port. The lower value has the higher priority.
IntPath Cost is used to choose the path and calculate the path costs of
ports in an MST region. It is an important criterion on determining the
root port. The lower value has the higher priority.
Select Enable/Disable Edge Port. The edge port can transit its state
from blocking to forwarding rapidly without waiting for forward delay.
Select the P2P link status. If the two ports in the P2P link are root port
or designated port, they can transit their states to forwarding rapidly to
reduce the unnecessary forward delay.
Select Enable to perform MCheck operation on the port. Unchange
means no MCheck operation.
Displays the STP version of the port.
Displays the role of the port played in the STP Instance.
 Root Port: Indicates the port that has the lowest path cost from
this bridge to the Root Bridge and forwards packets to the root.
 Designated Port: Indicates the port that forwards packets to a
downstream network segment or switch.
 Master Port: Indicates the port that connects a MST region to the
common root. The path from the master port to the common root
is the shortest path between this MST region and the common
root.
 Alternate Port: Indicates the port that can be a backup port of a
root or master port.
Backup Port: Indicates the port that is the backup port of a

designated port.
 Disabled: Indicates the port that is not participating in the STP.
Displays the working status of the port.
 Forwarding: In this status the port can receive/forward data,
receive/send BPDU packets as well as learn MAC address.
 Learning: In this status the port can receive/send BPDU packets
and learn MAC address.
 Blocking: In this status the port can only receive BPDU packets.
 Disconnected: In this status the port is not participating in the
STP.
Displays the LAG number which the port belongs to.
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