Hernandez Benet, Cristian; Noghani, Kyoomars Alizadeh; Taheri, Javid: 'SDN implementations and protocols' (Computing, 2018), 'Big Data and Software Defined Networks', Chap. 2, pp. 27-48, DOI: 10.1049/PBPC015E_ch2
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1rvw3pgzql0uy.x-iet-live-01content/books/10.1049/pbpc015e_ch2