For citizens of Australia
Australian citizens do not need any visa to enter Switzerland.
However, you will need to apply for an assurance of a residence permit directly with the competent Office of Migration of the Canton of your future place of domicile before you enter Switzerland.
Therefore please contact the local immigration authority for any questions:
Cantonal immigration and labour market authorities
Study in Switzerland
The future University in Switzerland has to submit the application for the assurance of a residence permit, to take up studies, directly with the Office of Migration of the Canton of the future study place in Switzerland. The Consulate General is not involved in this process.