Cambium Networks PTP 820 Series User Manual page 486

Chapter 8: Ethernet Protocols
Parameter
CIST Port Role
CIST Port CIST Regional Route
ID
CIST Port CIST Path Cost
CIST Port Hello Time
CIST Port Protocol Migration
CIST Port MAC Oper State
CIST Port Uptime
Viewing and Configuring the MSTP Port MSTI Parameters
To view and configure MSTI port parameters:
1 Select Ethernet > Protocols > MSTP > Port > MSTI. The MSTP Port MSTI page opens.
Figure 274 MSTP Port MSTI Page
Definition
The port's current role in the CIST.
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.
The Bridge ID of the current CIST Regional Root.
The CIST path cost from the transmitting bridge to the CIST regional root.
If the transmitting bridge is the CIST regional root, the value of this
parameter will be 0.
The port's Hello Time timer parameter value, for the CIST (in cs).
The current value of the mcheck variable for the port.
Note: Migration support is planned for future release.
The current state of the port's MAC operational parameter. True indicates
the MAC is operational.
The number of seconds that have elapsed since the port was last reset or
initialized.
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Configuring MSTP