To be a data center network engineer is to live with complexity and uncertainty. A change in one place could have an unintended effect somewhere else. Performance could suffer, workloads could be exposed, or the network could crash.
To operate successfully in uncertain environments where network requirements constantly evolve, network engineers need to cultivate good habits. Experienced network engineers tend to be careful, thoughtful, and precise. Traditionally, before making a change, they seek out information about the network through SNMP traps, syslog’s, device configurations, packet captures, and streaming telemetry. And when something goes wrong, they have a process in place to find, diagnose, and fix the problem.
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