CASE-112 · Engineering case

Managed Engineering-Network Standard and OT VLAN Migration Basis

Worked from a formal managed engineering-network standard that segmented production and I/O networks by line, process center, VLAN, subnet, gateway, and revision-color convention.

Conceptual engineering visualization: Managed engineering-network standard and OT VLAN migration basis
Conceptual engineering visualization · AI generated

Why the Work Mattered

Purpose and Operating Need

OT modernization required knowing the inherited standard: MDF / IDF topology, data VLANs, I/O VLANs, address ranges, device ranges, gateway rules, and revision-color conventions.

Engineering Approach

Engineering Approach

Applied network standard logic covering MDF, IDFs, redundant fiber pairs, EtherChannel backbone, CAT6 drops, wireless APs, firewall, Catalyst switches, data VLANs, I/O VLANs, gateway conventions, device-ID ranges, and managed-switch address reservations.

Outcome & Engineering Context

Outcome and Context

Improved network standardization and migration control.

Workstream Results & Impact

Workstream Portfolio Rollup

4,942,000 USD

OT Network and Controls Transformation

Recorded workstream portfolio reference. This is the workstream-level value and is not a project expenditure or a new total of reassigned projects.

Measures & Operating Detail

Engineering scope and design basis

Improved network governance, address consistency, troubleshooting speed, and future expansion control.

Improved OT network standardization, measured by data VLANs 11-15, wireless VLAN 60, peer-to-peer VLANs 9/10, I/O VLAN patterns 111/121/131/141/151, and device ranges reserving 10-29 for PLC / remote I/O, 30-49 for managed switches, and 50-250 for control devices, by applying a structured MDF / IDF / VLAN / IP-addressing standard.

MDF / IDF topology; redundant fiber pairs up to 20 Gb; VLANs 11, 12, 13, 14, 15, 60, 9, 10, 111, 121, 131, 141, 151; device ranges 10-29, 30-49, 50-250.254 gateway convention.

Actions, Methods & Controls

ACTIVITIES IN CONTEXT

Additional Technical Detail

Roles & contributions
  • Project Ownership

    Full lifecycle project ownership

    Owned the full project lifecycle: capital planning and prioritization, need definition, feasibility and scope development, engineering and AFE justification, procurement and vendor coordination, construction sequencing and field oversight, commissioning, turnover, and post-startup support. Connected operating requirements with technical scope, funding decisions, execution readiness, and the needs of operations and maintenance.

Workstream context
All portfolio connections
Project ownership and delivery context

Owned the full project lifecycle: capital planning and prioritization, need definition, feasibility and scope development, engineering and AFE justification, procurement and vendor coordination, construction sequencing and field oversight, commissioning, turnover, and post-startup support. Connected operating requirements with technical scope, funding decisions, execution readiness, and the needs of operations and maintenance.

Developed the fiber and managed-switch architecture, resilient power arrangements, configuration and rollback requirements, and cutover sequence. Network drawings, device labeling and validation connected the installation with operator and maintenance needs. The work included a 10 Gbps backbone and 13 UPS-backed resilience points.

Related methods and applications
Related analysis and application artifacts
Connected collections

WHAT COMES NEXT

Complex Challenge?
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Engineering leadership, capital projects, and independent consulting.

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