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When it comes to building campus networks, there is a religion around stacking versus chassis-based systems. In my network engineer days, I lived on both sides of that holy war. Initially, it was chassis or nothing, but I worked for a big financial firm with large budgets and didn’t give much credence to other options. As time went on, I began to appreciate a stack’s flexibility and budget flexibility, as one could start with a small network stack and add to it when required.