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Quickly Triaging Cisco Networks

In my job, I am commonly tasked with looking at misbehaving or underperforming data center, campus, and wide-area networks. It’s no secret that this can be a difficult task, often exacerbated by lack of context, old (no?) documentation, lack of access, and time criticality. I’ve come up with the following set of show commands that I can run, or a customer can run on my behalf, on key components in the environment to get my bearings and start developing hypotheses quickly.

I typically encounter Cisco ISR, ASR, Catalyst and Nexus in my travels, and this configlet runs the gamut across some different capabilities and CLI syntax.


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