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Network Modernization in Cloud Migration

Network Modernization in Cloud Migration

$199.00
When you get access:
Course access is prepared after purchase and delivered via email
How you learn:
Self-paced • Lifetime updates
Toolkit Included:
Includes a practical, ready-to-use toolkit containing implementation templates, worksheets, checklists, and decision-support materials used to accelerate real-world application and reduce setup time.
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This curriculum spans the technical and operational rigor of a multi-phase cloud migration advisory engagement, covering the same network architecture, security integration, and automation practices applied in large-scale enterprise transformations.

Module 1: Strategic Assessment and Readiness for Cloud Networking

  • Conduct inventory and dependency mapping of on-premises network services to identify candidates for lift-and-shift versus redesign.
  • Evaluate existing network performance SLAs against cloud provider backbone reliability and regional availability.
  • Define network boundary ownership between enterprise and cloud provider using shared responsibility models for hybrid connectivity.
  • Assess regulatory constraints that dictate data residency and require localized network egress points.
  • Map application communication patterns to determine required bandwidth, latency, and jitter thresholds for cloud onboarding.
  • Establish cross-functional alignment between network, security, and application teams on cloud readiness criteria and sequencing.

Module 2: Hybrid Connectivity Architecture Design

  • Select between IPsec VPN, AWS Direct Connect, Azure ExpressRoute, or GCP Interconnect based on cost, redundancy, and throughput needs.
  • Design BGP routing policies to control traffic flow and failover between multiple hybrid connections.
  • Implement route filtering and prefix whitelisting to prevent accidental or malicious route injection from on-premises.
  • Size and provision dedicated interconnects with appropriate port speeds based on projected cloud data transfer volumes.
  • Configure DNS resolution strategies across hybrid environments to support consistent name resolution for migrated workloads.
  • Validate failover behavior of redundant connections using controlled network partition testing.

Module 3: Virtual Networking in Public Cloud Environments

  • Define VPC/VNet peering strategies with centralized transit hubs versus full mesh topologies based on scale and policy enforcement needs.
  • Implement hierarchical IP address allocation across regions and availability zones to prevent overlap and simplify routing.
  • Enforce network segmentation using subnet tiering (public, private, management) with route table controls.
  • Configure flow logs and packet mirroring to enable visibility into east-west traffic within virtual networks.
  • Integrate third-party virtual appliances into VPC routing paths for advanced firewalling or WAN optimization.
  • Manage VPC sharing across organizational units using AWS Resource Access Manager or Azure Shared VNet controls.

Module 4: Cloud Network Security and Zero Trust Integration

  • Replace traditional perimeter firewall rules with micro-segmentation policies using cloud-native security groups and NSGs.
  • Implement service endpoints and private links to restrict cloud service access to authorized VPCs only.
  • Deploy cloud workload identity federation to eliminate long-lived credentials in network access decisions.
  • Integrate cloud network logs with SIEM platforms using native streaming services (e.g., AWS Kinesis, Azure Event Hubs).
  • Enforce TLS inspection for outbound traffic using transparent proxy architectures with certificate trust management.
  • Apply network security policies as code using IaC tools to ensure consistent deployment across environments.

Module 5: DNS, Load Balancing, and Application Delivery

  • Design global DNS routing policies using latency-based or geoproximity routing for multi-region workloads.
  • Select between layer 4 and layer 7 load balancers based on protocol support, SSL offload, and session persistence requirements.
  • Configure health checks with appropriate thresholds to prevent premature instance deregistration during transient failures.
  • Implement DNS TTL tuning to balance performance and failover responsiveness during migration cutover.
  • Integrate third-party ADCs (e.g., F5, Citrix) into cloud environments for advanced application traffic management.
  • Manage certificate lifecycle for public and private endpoints using centralized certificate authorities and automation.

Module 6: Network Performance Optimization and Monitoring

  • Baseline application performance metrics pre-migration to establish cloud performance comparison benchmarks.
  • Optimize TCP stack settings and MTU sizes across hybrid links to reduce packet fragmentation and retransmissions.
  • Deploy synthetic transaction monitoring to detect network path degradation between user locations and cloud regions.
  • Use cloud-native monitoring tools (e.g., CloudWatch, Azure Monitor) to correlate network metrics with application performance.
  • Implement traffic shaping and QoS policies at the edge for SaaS and cloud-hosted application access.
  • Configure VPC flow log aggregation and analysis pipelines to detect anomalous traffic patterns at scale.

Module 7: Governance, Automation, and Operational Sustainability

  • Define network naming conventions and tagging standards for cost allocation and operational tracking.
  • Implement infrastructure-as-code pipelines with pre-merge validation of network configuration templates.
  • Establish change advisory board (CAB) processes for production network modifications in cloud environments.
  • Automate compliance checks for network configurations using policy-as-code frameworks (e.g., HashiCorp Sentinel, Azure Policy).
  • Document network topology and data flows using automated diagramming tools integrated with configuration management databases.
  • Rotate and audit network access keys and API tokens on a scheduled basis using privileged access management systems.
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