Planet MGSD-10080F User Manual page 171

•
TCN
•
Discarded Unknown
• Discarded Illegal
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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.
171
User's Manual of MGSD-10080F