Cambium Networks PTP 820 Series, User Manual, Page: 483 / 1149

Chapter 8: Ethernet Protocols Configuring MSTP
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Figure 271 MSTP Port Spanning Tree – Edit Page
3 In the STP Port Priority field, select the CIST port priority of the interface. You can select values from 0-240,
in multiples of 16.
4 Click Apply , then Close .
Table 81 lists and describes the status parameters in the MSTP Port Spanning Tree page.
Table 81 MSTP Port Spanning Tree Status Parameters
Parameter Definition
STP Interface Location The slot number and port number of the port.
STP Port State The port's current state, as defined by application of STP. The port's state
controls the action the port takes upon receipt of a frame. Possible values
are:
•
Forwarding – The port sends and receives traffic normally.
•
Blocking – The port does not send or receive traffic, but does receive
BPDUs.
•
Learning – The port receives traffic but does not forward the traffic.
The port learns the source MAC addresses of incoming frames.
•
Listening – The port monitors BPDUs, but does not forward traffic
and does not learn the source MAC addresses of incoming frames.
•
Disabled – The port is disabled (not by MSTP).
STP Port Designated Cost
The CIST Path Cost of the segment connected to this port. This value is
compared to the root path cost in received BPDUs.
STP Port Designated Bridge The CIST Bridge ID of the bridge that this port considers to be the
designated bridge for this port's segment.