Carlos AlvaradoTechnology Solutions Architect
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Regional SDN transformation

Modernizing live banking networks while building the regional capability to deliver them.

My role
Architect & technical lead
Context
Financial services · Central America & Caribbean
Project status
Delivered program

Program reach

  • 20+financial institutions
  • 7countries
  • 5 yearsprogram period reported

Reported scope over a five-year program; these figures describe reach, not uptime or financial savings.

Conceptual illustration · not a client topology

Inside the work

How I approached it

  1. Understand

    Assess the legacy topology, operating constraints and migration dependencies.

  2. Design

    Select ACI, SD-Access, SD-WAN or VXLAN according to the institution's requirements.

  3. Deliver

    Own the migration approach, lead technical execution and resolve design escalations.

  4. Enable

    Train and certify the engineers delivering ACI across the region.

Decisions & trade-offs

Architectural reasoning based on the supplied project account.

Choose the fabric by fitACI or VXLAN with NDFC

ACI or VXLAN with NDFC

The program used both policy-centric ACI and VXLAN multi-site fabrics where they better fit the client.

The trade-off

A consistent decision process matters more than forcing every institution onto one architecture.

Design the migration, tooLive operations shape the transition

Live operations shape the transition

The target topology was only part of the work. The migration approach had to account for existing production services.

The trade-off

Coexistence and transition dependencies add design work before the target architecture is reached.

Scale the delivery capabilityArchitecture plus engineer development

Architecture plus engineer development

Training and certification supported the implementation teams executing the regional designs.

The trade-off

Technical leadership includes standards, knowledge transfer and escalation ownership.

Technologies by purpose

Network architecture

  • Cisco
  • ACI
  • SD-Access
  • SD-WAN
  • VXLAN
  • NDFC

Design documentation

  • Microsoft Visio
  • HLD / LLD

Scope & evidence

About this case

Project description supplied from LinkedIn. Client names and private architecture documents are not included.

Carlos on LinkedIn

Project account

Data center, campus and WAN modernization, combined with a stronger regional implementation capability. Counts and time span are owner-reported; no downtime or savings metric is asserted.

Owner-reported account. Private client configurations and original architecture documents are not published with this case.