August 1, 2023
Every few weeks I’m asked about why we1 can’t do pre-change network validation. Most network engineers don’t understand the nuances and details around this topic, and there’s very few words published on this, so it’s time for me to discuss what constitutes network simulation, network emulation, and what the challenges are around trying to validate network changes before they’re put in to production.
This is part one of two, where I’ll dive in to defining network simulation and some example tools.