Hello, thank you for answer, but i mean i need this interfaces as trunk, and trunk does work, but at first one of this interfaces should work as standalone link for PXE boot (PXE can't use trunk) and when system is booted and lacpbdu is in operation again, trunk should be up again. Other vendors have for example this command port-channel lacp fallback to work for this behavior.
So if interface doesn't receive lacpbdu it should not block the port, but works as standalone interface.