Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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3.14 Port mirroring failures
3.14.1 BPDUs are sent from a mirror port
To stop sending BPDUs from a mirror port when the port mirroring functionality is enabled,
Use the
spanning-tree bpdufilter configuration command to configure the BPDU
filtering functionality for the mirror port.