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PROmesh P9+
– User Manual
38
Figure 17: Port settings
Click Apply to apply the settings after you have set the respective parameters.
MSTP
Instance configuration
You can create Multiple Spanning Tree instances in this menu. This permits creation of a separate spanning
tree for each VLAN. The following settings are required for this:

Instances ID: Select the Multiple Spanning Tree Instance ID here. This ID must be identical for
all switches that are to belong to the same spanning tree.

Priority: Each subscriber of an MST instance can be assigned a priority. The values can be
assigned in steps of 4096 (starting with 4096). The lower the value, the higher the priority. The
subscriber with the lowest priority is declared the spanning tree master.

VLANs: You can specify a VLAN or a VLAN group for which the spanning tree is created here.
Port setting
This menu lets you make the following settings:

MTSP on: Enable the settings made in this menu

BPDU Guard: The BPDU Guard is a security mechanism of the STP and should be enabled on
all access ports. If these ports receive a BPDU, they are disabled. This can prevent disruption
of the network by manipulated BPDUs.

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.