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BPDUGuard helps to protect your spanning-tree topology. When an interface that has this enabled receives a BPDU, it will go into err-disabled mode.
2025/5/12 -This document describes the PortFast Bridge Protocol Data Unit (BPDU) guard enhancement feature of the Spanning Tree Protocol (STP).
2024/2/13 -BPDU Guard is a feature specifically designed to stop attackers from disrupting your spanning tree network configuration. Specifically, BPDU ...
The BPDU guard feature provides a secure response to invalid configurations because you must manually put the interface back in service. Use the BPDU guard ...
2021/12/27 -The BPDU Guard mechanism is used to keep external influences out of the Spanning Tree domain. BPDU Guard is turned off by default, but it is ...
Enables the BPDU guard on the selected switch interface. When BPDU guard is enabled, interfaces receiving MSTP BPDUs become disabled.
2022/12/4 -BPDU Guard itself is used to prevent loops from forming. I was also told that BPDU Guards prevents the port from receiving an STP frame.
Fun fact: when you enable bpdufilter globally, the port still sends 11 BPDUs before going silent. Thank you Jeremy for all the time and ...
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STP and RSTP have features, such as Portfast, BPDU Guard, and Root Guard, that help the network to work better by preventing layer 2 loops.
2020/2/11 -BPDU guard is a safety mechanism that shuts down ports configured with STP portfast upon receipt of a BPDU. Assuming that all access ports have ...