“…These options, however, are not available online. Although visualisation and simulation have been shown to be effective approaches to teaching the theory of networking (Goldstein et al, 2006;Jovanović & Zakić, 2018;Lampi, 2013;Rashid et al, 2019;Ruiz-Martinez et al, 2013), it remains difficult to use these approaches to convey advanced networking concepts that would otherwise require hands-on experience (Pan, 2010;Sarkar, 2006aSarkar, , 2006b. For example, working in a simulated scenario provides only a superficial experience compared to working with the real network and the real network devices (Shimba et al, 2017).…”