Which function does Link Management Protocol (LMP) perform in a StackWise Virtual domain?

Link Management Protocol (LMP) is crucial for maintaining the integrity of StackWise Virtual Link (SVL) bundles. Its primary function is to detect and reject unidirectional link traffic forwarding. If a link within an SVL bundle becomes unidirectional (traffic flows only one way), LMP identifies this issue and prevents that link from being used, thus avoiding potential traffic black-holing or forwarding loops. This ensures reliable and robust traffic forwarding across the SVL. The other options are incorrect: Determining active/standby roles is handled by the StackWise Virtual election process, not LMP. Hardware compatibility is a prerequisite for forming the domain, checked during initial setup, not an ongoing LMP function. Discovering the StackWise domain and bringing up SVL interfaces are functions of the StackWise Virtual initialization process and control plane, not specifically LMP.