Welcome back! In the previous post, we laid the foundation by performing a baseline UDP performance test between two ESXi hosts using iPerf. That gave us a solid starting point to understand what “normal” looks like. Now it’s time to dive deeper. In this part, we’ll simulate more complex and stressful conditions—starting with CPU overload—to see how it impacts packet loss and jitter. We’ll also put the powerful pktcap-uw tool