https://shadow.engineering/tags/networking/ Recent content in Networking on Shadow Engineering Hugo -- gohugo.io en © 2026 Mon, 07 Mar 2022 11:30:03 +0000 https://shadow.engineering/posts/diagnosing_difficult_network_issues/ Mon, 07 Mar 2022 11:30:03 +0000 https://shadow.engineering/posts/diagnosing_difficult_network_issues/ <h2 class="relative group">Background <div id="background" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#background" aria-label="Anchor">#</a> </span> </h2> <p>This is the story of a case I worked a long time ago. At the time I was working in an infrastructure development team. We had a VMWare vCenter 5.5 cluster that started as a prototype, but soon became mission critical (as is the way for those systems sometime). Other than overutilising the hardware with random VMs it had been functioning seemlessly with no issues for a long time, and then developed an interesting fault. The vCenter cluster would disconnect from the storage multiple times an hour.</p>