The spine. It runs from the first switches at StorComm in the late nineties, through the CCIE earned on it in 2002, through nineteen years of a city estate built on Catalyst, into a consulting portfolio where it was the platform in front of nearly every client.

Switching. Catalyst 5500 and 2940 in the early estate; a 6509 and 6509-E VSS core pair with 6506 and 6504 at the internet edge; 4503 distribution; 3560, 3750, 3750G, 3750X, 3850 and 2960 through the closets; Nexus 5572UP in the data center. Later refresh cycles onto Catalyst 9000 — 9200, 9200L, 9300, 9300X, 9400 and 9500 — with stack kits and DNA licensing.

Routing and wide area. 7513 and 7206 on the utility SCADA core in 2000, LightStream ATM alongside them; ASR 9010 as the research-network core; ISR 4431 and ASR 1001-X as SD-WAN edge routers on the consulting side.

Security and identity. PIX firewalls on the SOCOM kit in 2003; ASA 5506 and 5508-X at the City; Firepower 1120, 4225 and Secure Firewall 3105 under Firepower Management Center across the client portfolio. Secure ACS through two generations — CSACS-1112 appliance, versions 4.0 to 5.3 — then ISE, then Duo multi-factor on device administration in 2023. Umbrella for content filtering after OpenDNS.

Wireless. Aironet through the City estate on 2504 and 5508 controllers, Meraki for the library refresh, Catalyst 9800-class controllers and 9100-series access points later.

Compute and storage. UCS servers, MDS storage networking, HyperFlex — including the three HX 220c M5 nodes that became the practice lab.

The through line is not brand loyalty. It is that a CCIE earned in 2002 and maintained for twenty years buys the ability to argue with the platform rather than defer to it, which is what makes the multi-vendor entries elsewhere in this list possible.

Where it appears

Declared on each entry rather than listed here, so this page cannot drift from the work it describes. What each entry named is quoted as it stands, with how much of that project rested on it and what stands behind the claim beside it. The first of those drives the height of the surface above.

NRI North America (formerly Core BTS)

• Enterprise Networking Practice Lab2026Three HyperFlex HX 220c M5 nodes, repurposed · Catalyst 9000v emulated switchesthe project had no deliverable without itdocumented at the time
• Enterprise Agreement Pursuit — Global AutomotivePursuit March–April 2025 · headquarters session May 2025 · relationship carried forwardThe Enterprise Agreement itself — licenses, SmartNet and support · Firepower in the services scope · affiliate references on ACI (12 sites, 300+ devices) and DNA Center (4,500+ devices)the project had no deliverable without itdocumented at the time
• Firewall Refresh and Intrusion Response2025Firepower with FMC on adjacent sites · Duo MFA · AnyConnect · Secure Access · UCS hostingone of the platforms it was built ondocumented at the time
• Diversified Industrial Manufacturer2025–2026Catalyst Center · Secure Firewall 3105 with FMC · Umbrellaone of the platforms it was built ondocumented at the time
• Network Orchestration Proof of Concept2025–2026Catalyst 9000v virtual switchesone of the platforms it was built ondocumented at the time
• Post-Quantum Cryptography ProgramProposed December 2025 · accepted January 2026 · began February 2026HyperFlex HX 220c M5 nodes · Secure Access in the originating R&D workthe project had no deliverable without itdocumented at the time
• SD-WAN Portfolio — Banking and State Legislature2025–2026Catalyst SD-WAN with vManage and cEdge · ASR 1001-X · ISR 4431the project had no deliverable without itdocumented at the time
• State and Local Government Delivery2025–2026HyperFlex · UCS · Catalyst 9500 cores · Catalyst 9300 distribution · FMC-managed firewallsthe project had no deliverable without itdocumented at the time
• Enterprise Architecture Practice Build2024–2026Specialization and Black Belt track · peer review against Firepower / FMC, ISE, UCS and Umbrella designsone of the platforms it was built ondocumented at the time
• Casino Surveillance Network Design and Segmentation2024–2026Catalyst 9200 (C9200-48P-E) with stack kits and DNA licensing · Catalyst 9300X aggregation · Firepower 1120 under FMC · ISE on the 6 GHz additionsthe project had no deliverable without itdocumented at the time
• Client Architecture Portfolio2024–2026Catalyst 9200 / 9200L / 9300 / 9300X / 9500 · Firepower FPR-1120 / 4225 / FTD 3105 under FMC · Catalyst Center · Prime · ISE · Duo · AnyConnect / Secure Client · Umbrella · Secure Access · UCS · HyperFlex · Webex Callingthe project had no deliverable without itdocumented at the time
• E-Rate Funded Network Programs2024–2026Catalyst 9500 cores · 9300 distribution · 9200 / 9200L access · Firepower with FMC · Umbrella · ISE · Duo · Webex Callingthe project had no deliverable without itdocumented at the time
• Fourteen Weeks on the ToolsApril – August 2024Catalyst 9200 / 9300X · Firepower 1120 · Firepower with FMC against a PSIRT advisory · Umbrella · Duothe project had no deliverable without itdocumented at the time
• Multi-Property Gaming Group2024–2026Firepower FPR-1120 consolidated under FMC · Catalyst 9300 / 9200 · ISE virtual · Umbrella · ThousandEyes · Webex Calling · Catalyst Centerthe project had no deliverable without itdocumented at the time
• Healthcare Estates2024–2026ACI multisite fabric · Nexus · UCS · Firepower with FMC · vManage / Catalyst SD-WAN · Catalyst Center and DNA Center · Catalyst 9800 controllers with 9100 access pointsthe project had no deliverable without itdocumented at the time
• Municipal Infrastructure Assessment to RFP2024–2025Firepower with FMC · Umbrella · Duo · Secure Accessone of the platforms it was built ondocumented at the time
• Vendor and Partner Program2024–2026Enablement stack · Black Belt / 360 trackdeployed, and replaceabledocumented at the time
• Utility OT/IT Engagement2024–2026Secure Firewall 3105 under FMC · Catalyst 9200 · ISR 4431 (IOS-XE, OSPF) · ASR 1001-X SD-WAN cEdge · UCSthe project had no deliverable without itdocumented at the time

Young Tech Systems, LLC

• Vistakon Manufacturing Line IT/OT Integration2022–2023Plant-floor switchingthe project had no deliverable without itrecalled, not documented

City of Jacksonville

• Republican National Convention — National Special Security EventJune – October 2020Venue networkone of the platforms it was built onrecalled, not documented
• Consolidated CAD/911 Dispatch System2016–2024Catalyst 9400 / 3850deployed, and replaceabledocumented at the time
• Clerk of the Court Filtering and DMZ Architecture2016–2023IronPort · ISEdeployed, and replaceabledocumented at the time
• Enterprise Network Access Control2016–2022WLC wireless enforcement · ISE identityone of the platforms it was built ondocumented at the time
• Cecil Disaster Recovery Data Center2015–2023Catalyst 9400 / 3850deployed, and replaceabledocumented at the time
• Medical Examiner's Office Enterprise Integration2015–2024Catalyst 9000 / 3850 · Catalyst 9136I access points · Unified Communications Managerdeployed, and replaceabledocumented at the time
• Solid Waste Systems Modernization2014–2023Catalyst 3560 / 2960 site switchingdeployed, and replaceabledocumented at the time
• St. James Building Wireless2014–2015Aironet on WLC — the estate wireless of the periodthe project had no deliverable without itdocumented at the time
• Telemedicine Program with Hospital PartnersMay 2014 – August 2015Video endpoints — the closing note reads: we have proved the concept using Cisco equipmentthe project had no deliverable without itdocumented at the time
• E911 Caller Location and Backup Answering Point2013–2021Unified Communications Manager with ALI per station · Catalyst 9400 / 3850the project had no deliverable without itdocumented at the time
• Florida LambdaRail Regional Consortium2013–2020ASR 9010 research-network core · Catalyst 6504 city sidethe project had no deliverable without itdocumented at the time
• One Spark Festival Wireless2013–2015Catalyst 3750 in the signal cabinetsdeployed, and replaceabledocumented at the time
• Security Posture, Incidents and Federal Liaison2012–2024IronPort ESAdeployed, and replaceabledocumented at the time
• Digital Divide Broadband Pilots2012–2017The 2008 study partnernamed for context, not part of the deliverydocumented at the time
• Annex to Main Data Center Consolidation2010–2018Catalyst 6500 core pair relocatedone of the platforms it was built ondocumented at the time
• Ed Austin State Attorney's Office2010–2017Unified Communications Manager · Catalyst 3750the project had no deliverable without itdocumented at the time
• Main Data Center Physical Connection Layout2009–2024Catalyst 6509 VSS core · 4503 distribution · 3750 stacks · 3850 · Catalyst 9000one of the platforms it was built ondocumented at the time
• Enterprise Firewall Policy and OperationsMay 2009 – March 2017ASA 5506 / 5508-X · IronPort ESAdeployed, and replaceabledocumented at the time
• Juniper Enterprise Security Suite2009 – 2021Catalyst VSS pair carrying the redundant Ethernet groupsone of the platforms it was built ondocumented at the time
• Downtown Campus Distributed Antenna System2008–2023ASR 9010 · Catalyst 3750 / 3550 backhauldeployed, and replaceabledocumented at the time
• Duval County Courthouse Technology Program2008–2012Catalyst 6509 / 6506 core · 3750 / 3750X access · WLC 2504 / 5520 · Unified Communications Manager and handsetsthe project had no deliverable without itdocumented at the time
• Administrative Identity for the Network Estate2006–2022Secure ACS CSACS-1112 · ACS 4.0–5.3 · ISE · Duo MFA · IOSthe project had no deliverable without itdocumented at the time
• Port-Level Authentication: The 2006 Position2006–2023The switching the 2006 argument was about · ISE in production, 2021the project had no deliverable without itdocumented at the time
• Jacksonville Intelligent Transportation System2006–2024Catalyst 3750 / 6504the project had no deliverable without itdocumented at the time
• JTA and Downtown Transit Connectivity2006–2023Catalyst 6504 edge · Aironet AIR-AP3802Ideployed, and replaceabledocumented at the time
• Library Wireless Program2006–2023Aironet from 2006 · Catalyst 6504 / 3850the project had no deliverable without itdocumented at the time
• Internet Perimeter Firewall Replacement2006 – 2008Firewall Services Module in Catalyst 6509 · ASA appliances · multiple-context licensingthe project had no deliverable without itrecalled, not documented
• Enterprise Audiovisual-over-IP Fabric2005–2023Switching under the fabric — the model named in the solicitationone of the platforms it was built ondocumented at the time
• Enterprise Core Network2005–2024Catalyst 6509 / 6509-E VSS · 6506 · 6504 · 4503 · 3750 / 3750G / 3750X · 3850 · 3560 · 2960 · 2940 · 5500 · Nexus 5572UP · Catalyst 9000 · UCS · MDSthe project had no deliverable without itdocumented at the time
• Enterprise Web Filtering and Content Security2005–2023 · final platform decision scored 17 May 2023OpenDNS, then Umbrellaone of the platforms it was built ondocumented at the time
• Jacksonville Public Library Network2005–2023Catalyst 6509 at Main · 3750 / 3750X / 3850 / 2960 · Meraki branch refreshthe project had no deliverable without itdocumented at the time
• Municipal Fiber Plant2005–2016Catalyst 6504 · 3750 / 3560 terminating electronicsdeployed, and replaceabledocumented at the time
• Public Access Wireless Program2005–2019WLC 5508, evaluated in the 2017 bake-offquoted or evaluated — not operated heredocumented at the time
• City Council Chamber AV and IT Architecture2003–2024Catalyst 3850 edge switchingdeployed, and replaceabledocumented at the time
• The Utility Relationship: Twenty-Five Years, Two EmployersOctober 1999 – January 2024Catalyst interconnectsnamed for context, not part of the deliverydocumented at the time

Coleman Technologies (subsequently acquired; now Presidio)

• JSOC Content Distribution Capability2003–2004Content Engines placing data locally at each sitethe project had no deliverable without itnamed in the CV or the entry
• Rosen Hotels BBSM Custom DevelopmentSep–Dec 2003BBSM 5.2 — SDK and SQL schema development, test server under VMwarethe project had no deliverable without itnamed in the CV or the entry
• SOCOM Transportable Wireless Kit2003–2004PIX firewalls · router and switch per end · IP telephony with SRSTthe project had no deliverable without itnamed in the CV or the entry
• GE International Power Generation Monitoring Network2002–2004Bonded multilink serial · EIGRP with delay-based path control · HSRP pairs per sitethe project had no deliverable without itnamed in the CV or the entry
• Duval County Substation Network2001–2004Station routing and switchingthe project had no deliverable without itnamed in the CV or the entry
• JEA Power Quality Metering Network2001–2004One router and switch per station, ten timesone of the platforms it was built onnamed in the CV or the entry
• Cisco DOCSIS Residential Cable Buildouts2000–2008CMTS and cable routers, Network Registrar for DHCP and DNS, CallManager for residential and gatehouse telephonythe project had no deliverable without itnamed in the CV or the entry
• JEA Utility SCADA and Redundant Control Sites2000–20047513 and 7206 routers · LightStream and AXIS ATM shelvesone of the platforms it was built onnamed in the CV or the entry

StorComm, Inc.

• StorComm PACS Platform1997–1999Switchingdeployed, and replaceablerecalled, not documented