As shown in the figure, three switches S1, SW, and SN3, where SWI is the root bridge, and
link congestion occurs between SI and SW2, SWD cannot receive the configuration BPDU sent by the root bridge, which spanning tree protection mechanism does the administrator need to configure to prevent the problem caused by link congestion?( Single choice questions).
- root protection
- PreventS TC-BPDU attacks
- BPDU Protection
- Loop Protection
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