IT‑IS‑Networking
Technology › Network Architecture

Enterprise Networking

Design, build and operation of routed and switched networks at enterprise scale — the discipline the CCIE attests to and the spine of the career.

Also known as Routing and Switching, R&S, Campus Networking, LAN/WAN

Left to right is time. Each row is one of the 19 disciplines this one worked alongside, ordered so kindred disciplines sit next to each other rather than alphabetically — a landscape only means anything if neighboring rows belong together. Height is the work running in that domain in that year, weighted by what failure would have cost — life-safety ×3, a statutory obligation ×2.2, the estate itself ×1.5, an evaluation ×1. Every project declares which of those it was, so each ridge traces to an entry you can open and disagree with. Only the work that used this technology is counted, so what shows here is the company it kept rather than the record around it. Height and color are on the record-wide scale rather than this page’s own, so a modest estate draws a modest landscape and any two of these pages can be read against each other.

Campus, wide-area and data center design; routing protocol selection and behavior; switching architecture; and the operational practice of running production networks other people’s work depends on.

The estate at the City of Jacksonville ran to 220-plus locations, two data centers, 6,500 endpoints, 6,000 telephones and 1,100-plus network devices across agencies that each governed their own IT. Before that, five years at a regional integrator covering enterprise, government, healthcare, industrial, utility, cable and hospitality clients — where the work ran from climbing the tower and terminating the feed line through to systems architecture.

CCIE #10042, earned in August 2002 and maintained for twenty years.