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CCIE Enterprise
Principal Network Engineer with 19+ years designing and tuning large-scale enterprise and service provider networks. I’ve earned my CCIE (#58659) through real-world architecture work, not just lab theory. My workbooks draw from two decades of solving the problems that actually break production: BGP convergence issues, MPLS edge cases, QoS tuning at scale, and the design trade-offs no textbook covers. Every scenario reflects what I’ve seen in carrier-grade and enterprise environments where downtime costs real money.