MENU
Company XYZ wants to prevent switch loops caused by unidirectional point-to-point link conditions on Rapid PVST+ and MST. Which technology can be used in the design to meet this requirement?
STP Bridge Assuranceis a mechanism used to protect againstunidirectional link failureson point-to-point STP connections in environments likeRapid PVST+ and MST. When Bridge Assurance is enabled, BPDUs are expected on all BPDUs-capable interfaces. If a switch stops receiving BPDUs on a point-to-point link where Bridge Assurance is enabled, it assumes the link has failed and transitions the port to blocking to prevent a loop.
This is especially useful in high-availability enterprise designs that require protection from unexpected switch behavior or partial link failures.
Why other options are incorrect:
A . BPDU Guard: Protects access ports by placing them in an err-disabled state if BPDUs are received---useful at the edge, not for core loop protection.
C . MSTP: Refers to the protocol itself but does not solve the unidirectional link issue on its own.
D . TRILL: A different architecture (layer 2 routing) and not applicable to Rapid PVST+ or MST-specific protection.