The impact of the plane front of a discontinuous solar wind perturbation in the form of a fast MHD shock wave or a rotational discontinuity with a circular polarization on the Earth's bow shock and the magnetic sheath is investigated in the three-dimensional formulation within the framework of the MHD model. The characteristic values of the solar wind parameters and the interplanetary magnetic field strength in the Earth's orbit are considered. The global three-dimensional flow pattern is constructed as a function of the latitude and longitude of points on the bow shock and the intensities of all the waves appearing in the interaction which significantly depend on shock wave Mach number or the angle of rotation of the magnetic field in the rotational discontinuity are found. The solutions obtained are necessary to interpret the measurements of the solar wind parameters and the interplanetary magnetic field carried out on spacecraft located in the neighborhood of the Lagrange point L and the Earth's magnetosphere.
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