LevelOne GES-2450 - Manual (Page 52)

Web Smart Switch
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Cost recommended to assign this value according to the speed of the bridge. The
slower the media, the higher the cost. Entering 0 means the switch will
automatically assign a value.
Edge Port
Set the edge port configuration:
 No: Force to false state ( as link to a bridge).
 Yes: Force to true state ( as link to a host).
 Auto: Auto detect.
BPDU Filter
Set the BPDU Filter configuration:
 No: Disable BPDU Filter function.
 Yes: Enable BPDU Filter function.
To avoid transmitting BPDU from the specified ports
BPDU
Guard
Set the BPDU Guard configuration:
 No: Disable BPDU Guard function.
 Yes: Enable BPDU Guard function.
To drop directly the received BPDU from the specified ports
P2P MAC
Set the Point-to-Point port configuration:
 No: Force to false state.
 Yes: Force to true state.
 Auto: Auto detect ( according to duplex).
Migrate
Click the square choice box to enable this function.
Force to try to use the new MST/RST BPDUs, and hence to test the
hypothesis that all legacy systems that do not understand the new BPDU
formats have been removed from the LAN segment on the port(s).
Apply Click Apply to save your changes to the switch.
3.3.9.3 MST Configuration
MST is the acronym of Minimum Spanning Tree.
Click Switching > STP > MST Configuration.