Cambium Networks PTP 820 Series User Manual page 485

Chapter 8: Ethernet Protocols
3 In the CIST Port Admin Path Cost field, enter an assigned value for the contribution of this port to the path
cost of paths towards the spanning tree root.
Note
Changing the value of this parameter is considered to be a topology change by the MSTP mechanism.
4 In the CIST Port Edge Admin field, select the port's administrative edge port parameter, for the CIST.
5 In the CIST MAC enabled field, select the port's MAC Enabled parameter. A value of True indicates that
administratively, the MAC is set as if it were connected to a point-to-point LAN. Options are:
o
Force True – The MAC is treated as if it is connected to a point-to-point LAN, regardless of any indications
to the contrary that are generated by the MAC entity.
o
Force False –The MAC is treated as if it is connected to a non-point-to-point LAN, regardless of any
indications to the contrary that are generated by the MAC entity.
o
Automatic – The MAC Enabled parameter is set to True if the MAC is connected to a point-to-point or full-
duplex LAN. The MAC Enabled parameter is set to False if the MAC is connected to a non-point-to-point
and half-duplex LAN.
6 Click Apply, then Close.
Table 82 lists and describes the status parameters in the MSTP Port Spanning Tree page.
Table 82 MSTP Port CIST Status Parameters
Parameter
CIST Port Interface Location
CIST Port Designated Root
CIST Port Edge Oper State
Definition
The slot number and port number of the port.
The CIST Regional Root ID component of the port's Port Priority vector for
the CIST
Indicates whether or not the port is operating as an Edge port. Possible
values are:
•
True – The port is operating as an Edge port, which means it does not
process the BPDUs that it receives.
•
False – The port is operating as a non-Edge port, which means it
processes the BPDUs that it receives.
If CIST Port Edge Admin is set to True, the system automatically
determines its operational Edge port state.
phn-3965_006v002
Page 8-30
Configuring MSTP