Travel Rights
The initial migration visa will be valid for travel for 5 years from the date your application for immigration to Australia is granted. You will be able to travel freely to and from Australia for this 5-year period. If you wish to leave and re-enter Australia after this, you would either need to apply for Australian citizenship or apply for a Resident Return Visa which would typically last for another 5 years. If you have lived in Australia for at least 2 of the 5 years prior to applying for your Resident Return Visa, then you should have a good chance of obtaining a new Resident Return Visa. Otherwise, you will need to show close ties with Australia and possibly compelling and compassionate reasons for your absence from Australia to obtain a new Resident Return Visa.