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（2）MSTP port configuration page
Through this page, user can configure some MSTP related information, mainly including:
Select the port to be configured.
Configure a port as a port fast port to enable the port from the blocking state to the
forwarding state, bypassing the listening and learning states.
Open the BPDU filter on the selected port.
Enable BPDU guard on the selected port.
Enable the root guard function, and do not accept BPDU packets with a higher priority than
the bridge. Specify the switch as the root switch.
Configure the connection type. Point-to-point: The type of connection is point-to-point,
allowing fast transition of the port status. Shared: Connection type is shared, does not allow
rapid conversion of port status, to go through the calculation process of 802.1D to
determine the status of the port.
Configure the cist priority of the interface. Range 0-240, can only be a multiple of 16. The
default is 128.
Configure the cist path cost. Range 1-200000000. The default is 20000000. Lower path costs
are more likely to be roots.
Configure the type of protocol packets to be sent.
MSTP Port Configuration Page
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