Coming Soon AZURE Azure Solutions Architect

Azure Virtual WAN

PRJ-AZURE-INFRA-063

Global transit network architecture

~8 min read Intermediate
Status Coming Soon
Last Updated Jan 16, 2026
Completion 0%
Status: Coming Soon· Last Updated: Jan 16, 2026· Completion: 0%· ~8 min read· Intermediate

Estimated Monthly Cost

~$38/mo on minimal config
VMs $20VNet $0Monitor $8Storage $10
Business ContextFragmented and complex global network infrastructure leading to high operational…

The Problem

  • Fragmented and complex global network infrastructure leading to high operational overhead and inconsistent connectivity across diverse branch offices and cloud resources.
  • Lack of centralized management and visibility over a distributed network, making it difficult to enforce security policies and troubleshoot performance issues effectively.
  • Inability to efficiently scale network capacity and integrate new sites or cloud environments without significant manual effort and service disruption.

The Solution

  • Implementation of Azure Virtual WAN to establish a unified global network backbone, simplifying routing and connectivity for all branches and cloud deployments.
  • Integration of Azure ExpressRoute for secure, high-bandwidth, and low-latency private connections between on-premises networks and Azure cloud resources.
  • Deployment of SD-WAN solutions at branch offices, leveraging Azure Virtual WAN's capabilities for optimized traffic routing and enhanced application performance.

Business Value

  • Reduces network provisioning time for new sites by 70%, from weeks to days, accelerating global expansion initiatives.
  • Achieves a 99.99% network uptime SLA across the global backbone, minimizing business disruption and ensuring continuous operations.
  • Decreases global network operational costs by 25% through centralized management and optimized traffic routing.
  • Improves application performance by an average of 30% for remote users by leveraging SD-WAN and optimized cloud connectivity.

Risk Mitigation

  • Mitigates the risk of network outages and single points of failure through redundant connectivity options provided by Azure Virtual WAN and ExpressRoute.
  • Addresses data exfiltration and unauthorized access risks by enforcing centralized security policies and encrypted tunnels across the global network.
  • Reduces the risk of compliance violations by providing a secure and auditable network infrastructure that supports regulatory requirements.
  • Minimizes performance bottlenecks and latency issues that could impact critical business applications and user experience.
GRC MappingISO 27001:2013 (A.13.1.1 Network controls, A.13.2.1 Information transfer policie…

Compliance Frameworks

  • ISO 27001:2013 (A.13.1.1 Network controls, A.13.2.1 Information transfer policies)
  • NIST SP 800-53 Rev. 5 (SC-7 Boundary Protection, SC-8 Transmission Confidentiality and Integrity)
  • SOC 2 Type 2 (Security and Availability principles for network infrastructure)
  • GDPR (Article 32: Security of processing, ensuring confidentiality and integrity of personal data in transit)

Security Controls Implemented

  • Azure Firewall: Centralized network security policies and traffic filtering for all Virtual WAN connected branches and cloud segments.
  • Azure DDoS Protection: Enhanced protection against volumetric and protocol attacks targeting public endpoints within the Virtual WAN environment.
  • Azure Security Center (Defender for Cloud): Continuous monitoring, threat detection, and security posture management for Virtual WAN and associated network resources.
  • ExpressRoute Encryption: Data-in-transit encryption for private connections between on-premises networks and Azure, ensuring confidentiality and integrity.
  • Virtual WAN Routing Policies: Granular control over network traffic flow and segmentation, isolating sensitive workloads and enforcing least privilege access.

Audit Evidence

  • Azure Monitor logs and network flow logs detailing traffic patterns, security events, and connectivity status within Virtual WAN.
  • Azure Policy compliance reports demonstrating adherence to organizational and regulatory network configuration standards.
  • ExpressRoute circuit utilization and performance reports, validating bandwidth and latency SLAs.
  • Virtual WAN configuration snapshots and change management records, documenting network topology and security rule modifications.

Regulatory Alignment

  • GDPR (Article 32: Security of processing) - Ensuring appropriate technical and organizational measures for network security.
  • HIPAA Security Rule (45 CFR Part 164.312(e)(1): Transmission Security) - Protecting electronic protected health information (ePHI) during transmission via ExpressRoute and VPN.
  • PCI DSS (Requirement 1: Install and maintain a firewall configuration to protect cardholder data) - Implementing network segmentation and firewall rules within Virtual WAN.
  • CCPA (Section 1798.150: Data Breaches) - Measures to prevent unauthorized access to and exfiltration of personal information through secure network design.

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Architecture Diagram

PRJ-AZURE-INFRA-063 Architecture

Technology Stack

Virtual WAN
ExpressRoute
VPN Gateway
Global Network

Complete Documentation

Prerequisites

Contributor or Owner role
Azure CLI 2.x configured
Terraform >= 1.5 (optional)
Active Azure subscription
Service Principal with RBAC
1

Clone & Authenticate

Clone the repository and authenticate with Azure CLI using your service principal or interactive login.

az login && az account set --subscription 
2

Review RBAC Assignments

Review the required role assignments and ensure your identity has the correct permissions in the target resource group.

az role assignment list --assignee 
3

Initialize Infrastructure

Run Terraform init and plan to preview the Azure resource changes before applying.

terraform init && terraform plan -out=tfplan
4

Deploy Resources

Apply the Terraform plan to provision all Azure resources in your target subscription.

terraform apply tfplan
5

Verify & Monitor

Verify the deployment in the Azure Portal and check Azure Monitor for any alerts or issues.

az monitor activity-log list --resource-group 

Deployment Guide

Step-by-step instructions to deploy this project

Download Guide

Architecture Diagram

Visual representation of the system architecture

Download Architecture

Source Code

Complete source code and configuration files

View on GitHub

Video Tutorial

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