Cambium Networks PTP 820 Series User Manual page 489

Chapter 8: Ethernet Protocols
Parameter
MSTI Port Role
MSTI Port Uptime
Viewing and Resetting the BPDU Counters
To view and reset the BPDU counters:
1 Select Ethernet > Protocols > MSTP > Port > BPDU Counters. The MSTP Port BPDU Counters page opens.
Definition
The port's current role in the MSTI.
Transient port roles may be:
•
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.
•
Final port roles may be:
•
Disabled – The port is in Operational - Down state and is not included
in the MSTP calculation.
•
Designated – The port is in Operational - Up state and has been
designated to forward traffic.
•
Root – The port is forwarding traffic towards the root bridge.
•
Alternate – The port is not forwarding traffic (blocked) but can
become a Designated port after MSTP calculation.
•
Master – The port is forwarding traffic towards the CIST root bridge.
The port's uptime parameter value for the MSTI. This is the number of
seconds that have elapsed since the port was last reset or initialized.
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Configuring MSTP