During spanning tree calculation, port priorities in MSTIs determine which ports are selected as designated ports.
To block a port in an MSTI to eliminate loops, set the port priority to a value larger than the default value. This port will be blocked during designated port selection.
The system view is displayed.
The Ethernet interface view is displayed.
A port priority is set in an MSTI.
By default, the port priority is 128.
The priority value ranges from 0 to 240, in increments of 16.