Case studies
Five projects from a global enterprise network: what the problem was, what I did about it, and what it changed.
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Cisco ISE, built from the ground up
Started the 802.1X initiative, then designed the identity platform that now authenticates 60K+ endpoints across five global datacenters.
- Endpoints authenticated
- 60K+
- ISE nodes
- 14
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Global AAA migration
The repeatable process that moved 190 WLANs onto a parallel-built ISE 3.x, and the pipeline built to repoint a 1,500+ device TACACS estate.
- Device estate in scope
- 1,500+
- WLANs moved
- 190
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Meraki to Catalyst 9800
Re-architected global enterprise wireless from cloud-managed Meraki to sixteen Catalyst 9800 controllers, then cut over 900 APs site by site.
- APs cut over
- ~900
- Controllers
- 16
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The NetDevOps toolkit
A shared automation platform: Python tools and Ansible playbooks with NetBox as the source of truth, delivered so engineers can run them without touching git.
- Source of truth
- 1
- Secrets in the repo
- 0
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The remote-access stack
Global ASA and FTD SSL VPN headends where every session clears Azure MFA and an ISE posture check, anchored by a three-node load-balancing cluster I have owned for over three years.
- Nodes in the VPN cluster
- 3
- Sessions on password alone
- 0
Have a network problem like one of these?
Hiring or consulting? I reply within two working days, and my résumé is available on request.
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