Client Results — Manufacturing

Production Azure Assessment Enables Safe CloudEOS Migration Planning

A comprehensive assessment of production Azure infrastructure and Aviatrix dependencies provided clear migration waves and execution roadmap for transitioning to Arista CloudEOS without operational disruption.

Azure networking · CloudEOS migration · Production readiness · Infrastructure-as-Code
62 VNets
Production scope mapped
Across two Azure regions with full dependency analysis
4–6 weeks
Assessment timeline
From discovery through migration recommendations
Zero
Service disruption risk
Phased approach with rollback guardrails
Clear
Migration waves defined
Dependency-driven sequencing for safe execution
Manufacturing

The Organization

A mid-market manufacturing company operating production Azure infrastructure across multiple regions with existing Terraform automation and Infrastructure-as-Code foundations. The organization required a practical migration path from Aviatrix to Arista CloudEOS while maintaining operational continuity.

Production Azure footprint with 62 VNets across two regions, Aviatrix transit networking, ExpressRoute connectivity, and established Terraform deployment workflows.

The Challenge

The organization needed to migrate from Aviatrix to Arista CloudEOS in their production Azure environment but lacked visibility into migration dependencies and blast radius. Without understanding current Aviatrix usage patterns and application dependencies, planning a safe migration approach was impossible.

The client had already invested in Infrastructure-as-Code foundations but needed to understand production readiness gaps and execution requirements for CloudEOS deployment.

Unknown Aviatrix dependencies across 62 production VNets
Unclear migration blast radius at application and connectivity levels
Uncertainty about CloudEOS production deployment prerequisites
Need for coordinated execution model with clear ownership boundaries
Risk of service disruption during migration without proper planning

IVI's Approach

IVI conducted a focused assessment building on existing Infrastructure-as-Code foundations to provide operational intelligence for safe CloudEOS migration execution rather than recreating foundational work.

Phase 1: Program Alignment & Discovery

Confirmed business drivers, timeline constraints, internal team structure, and success criteria through stakeholder interviews to align assessment scope with execution needs.

Phase 2: Production Azure Footprint Assessment

Analyzed production environment across two regions and 62 VNets, documenting hub-spoke relationships, gateway constructs, ExpressRoute dependencies, and shared services architecture.

Phase 3: Aviatrix Dependency Analysis

Identified migration-affecting functions including gateway usage, routing dependencies, operational patterns, and high availability requirements to understand replacement needs.

Phase 4: Migration Planning & Readiness Review

Assessed CloudEOS production deployment readiness, Infrastructure-as-Code gaps, and internal execution capacity to define practical migration waves and co-managed support model.

Technology Stack Assessed

Microsoft Azure
Cloud platform with 62 VNets across two regions
Aviatrix
Current transit networking and gateway platform
Arista CloudEOS
Target cloud networking platform
Terraform
Infrastructure-as-Code automation
GitHub
Repository and deployment pipeline management
ExpressRoute
Hybrid connectivity to on-premises

Assessment Outcomes

The assessment provided complete operational intelligence for safe CloudEOS migration execution with clearly defined phases, dependencies, and risk mitigation strategies.

Complete dependency mapping

Documented all Aviatrix usage patterns, routing dependencies, and operational requirements across the production Azure footprint to eliminate migration surprises.

Phased migration roadmap

Defined dependency-driven migration waves with clear sequencing, blast radius analysis, and rollback procedures for each phase of CloudEOS deployment.

Production readiness validation

Assessed CloudEOS design fit for production requirements and identified Infrastructure-as-Code hardening needs for safe automated deployment.

Execution acceleration model

Recommended co-managed engineering approach with defined workstreams and ownership boundaries to accelerate deployment while building internal capabilities.

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FAQs
How do you assess migration risk without disrupting production?

IVI uses read-only access to analyze existing configurations, traffic patterns, and dependencies. The assessment is entirely non-intrusive, relying on documentation review and stakeholder interviews rather than production changes.

What makes this different from a typical cloud assessment?

This assessment focuses specifically on migration execution readiness rather than strategy development. It builds on existing foundations to provide operational intelligence for safe CloudEOS deployment with defined phases and risk mitigation.

How detailed is the migration wave planning?

The assessment provides dependency-driven sequencing with specific VNet groupings, application impact analysis, and rollback procedures for each migration phase. This enables confident execution planning with clear success criteria.

Can the existing Terraform automation be reused?

Yes. The assessment evaluates existing Infrastructure-as-Code foundations for CloudEOS compatibility and identifies specific hardening requirements for production deployment while preserving automation investments.

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