Administrator Guide

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Global BPDU Filtering
When BPDU Filtering is enabled globally, it stops transmitting BPDUs on the operational port fast enabled
ports by default.
When it receives BPDUs, it automatically participates in the spanning tree. By default global bpdu filtering is
disabled.
Figure 113. BPDU Filtering Enabled Globally
Interface BPDU Filtering
When BPDU Filtering is enabled on an interface, it should stop sending and receiving BPDUs on the port fast
enabled ports.
When BPDU guard and BPDU filter is enabled on the port, then BPDU filter takes the highest precedence. By
default bpdu filtering on an interface is disabled.
Spanning Tree Protocol (STP) 880