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PROmesh P9+
– User Manual
37
Port settings
Set the following port-related settings per port:

Port: You can configure each ports individually.

RSTP on: For each port, select whether or not to enable the Rapid Spanning Tree Protocol on
that port.

Status: Displays the current status of each port. The following are distinguished:
o
Blocking: Discards packets; does not learn addresses; receives and processes BPDUs
o
Listening: Discards packets; does not learn addresses; receives, processes, and
transmits BPDUs
o
Learning: Discards packets; learns addresses; receives, processes, and transmits
BPDUs
o
Forwarding: Forwards packets; learns addresses; receives, processes, and transmits
BPDUs
o
Disabled: Discards packets; does not learn addresses; does not receive and process
BPDUs

Role: Each port can run in one of the following modes:
o
Root port: A port in the forwarding state. Shortest way to the root bridge.
o
Designated port: A port in the forwarding state that allows communication to other
bridges in the spanning tree.
o
Alternate port: An alternate path to the root bridge, in addition to the current root port.
o
Backup port: A backup path provided through a designated port towards the branches of
the tree structure. Backup ports can only exist where two ports are connected as a
loopback by a point-to-point connection or a bridge with two or more connections to a
common LAN segment.
o
Disabled port: A port without any operational function in the tree structure.

Priority: This allows the assignment of higher priorities to certain ports to influence the tree
structure. Enter a number from 0 to 240. The value must be a multiple of 16.

Costs: The cost from the sending bridge on the respective port of another bridge. Enter a number
from 1 to 200,000,000. You can use this parameter to influence the structure of the tree.
o
defined: The cost of a connection to the root bridge can be specified.
o
designated: The designated costs are calculated by the RSTP and displayed here.

Edge port: Specifies a port directly connected to an end device and not to another bridge (a
switch). These ports cannot cause loops and therefore immediately switch to Forwarding mode.
Changing the status of an edge port does not change the topology in any case. They speed up
the reconfiguration time of the redundancy protocol by setting edge ports fixed.
o
Force: The port is configured as an edge port by default.
o
Auto: Edge ports are detected is automatically.