Planet GS-5220-16S8C User Manual page 150

 MSTP

RSTP

STP

TCN

Discarded Unknown
 Discarded Illegal
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User's Manual of GS-5220-16S8C & GS-5220-16S8CR
The number of MSTP Configuration BPDU's received/transmitted on the port.
The number of RSTP Configuration BPDU's received/transmitted on the port.
The number of legacy STP Configuration BPDU's received/transmitted on the
port.
The number of (legacy) Topology Change Notification BPDU's
received/transmitted on the port.
The number of unknown Spanning Tree BPDU's received (and discarded) on the
port.
The number of illegal Spanning Tree BPDU's received (and discarded) on the
port.
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