A 911 PSAP connects a temporary event switch and wants edge ports to go forwarding without classic listening and learning delays. Which pairing correctly speeds edge forwarding while still protecting against an accidental loop?
Select an answer to reveal the explanation.
Short Explanation
PortFast is the express lane into forwarding for ports that should only see PCs or a temporary event switch edge. BPDU guard is the emergency brake if a switch shows up where a host belongs. Use them together at a PSAP temp drop—speed without gambling on a loop.
Full Explanation
PortFast (edge-port) behavior moves eligible access ports into forwarding without waiting through listening and learning, which suits host and temporary edge connections. If a switch is plugged in and BPDUs appear, BPDU guard errdisables the port instead of silently participating in STP. Root guard protects root election on designated ports and does not replace PortFast. Disabling STP globally removes loop protection, and trunk-plus-VTP does not cancel STP timers on edge ports.