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Network Modernization in Digital transformation in Operations

Network Modernization in Digital transformation in Operations

$249.00
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 complexity of a multi-phase network modernization program, comparable to an enterprise-wide advisory engagement that integrates architecture design, security transformation, automation, and cross-functional alignment across global IT and business units.

Module 1: Assessing Legacy Network Infrastructure

  • Conducting inventory audits of existing routers, switches, and firewalls to identify end-of-life or end-of-support hardware.
  • Evaluating protocol dependencies such as legacy VLAN configurations that conflict with modern segmentation requirements.
  • Mapping application traffic flows to determine which systems rely on outdated network services like MPLS or Frame Relay.
  • Identifying shadow IT network devices introduced without central IT approval, posing security and compliance risks.
  • Measuring latency and jitter across WAN links to justify migration from leased lines to SD-WAN.
  • Documenting interdependencies between network services and business-critical applications during peak operations.

Module 2: Defining Network Architecture for Hybrid Operations

  • Selecting between hub-and-spoke and full-mesh topologies based on regional data sovereignty and latency constraints.
  • Designing IP address schemes that support multi-cloud environments without overlapping subnets.
  • Choosing between centralized and distributed routing models for branch-to-cloud connectivity.
  • Integrating on-premises data centers with cloud VPCs using direct connects or IPsec tunnels.
  • Specifying BGP versus static routing for dynamic failover across redundant internet circuits.
  • Implementing DNS architectures that support split-horizon resolution for hybrid workloads.

Module 3: Implementing Software-Defined Networking (SD-WAN)

  • Deploying SD-WAN edge appliances at regional offices with zero-touch provisioning using pre-shared keys.
  • Configuring application-aware routing policies to prioritize VoIP and ERP traffic over bulk transfers.
  • Integrating SD-WAN controllers with existing IAM systems for role-based administrative access.
  • Establishing SLA thresholds for jitter and packet loss that trigger automatic path selection.
  • Testing failover behavior between LTE backup links and primary broadband connections.
  • Monitoring throughput degradation during peak hours and adjusting QoS policies accordingly.

Module 4: Securing the Modernized Network

  • Replacing legacy firewall rules with micro-segmentation policies based on Zero Trust principles.
  • Deploying inline decryption for TLS 1.3 traffic at network egress points, balancing security and performance.
  • Enforcing 802.1X authentication for all wired and wireless endpoints across global sites.
  • Integrating SIEM systems with network switches to correlate MAC address anomalies with user identities.
  • Configuring WAF rules to protect externally exposed APIs without disrupting backend service performance.
  • Implementing DNS filtering to block access to known command-and-control domains at the resolver level.

Module 5: Integrating Cloud Networking Services

  • Configuring AWS Transit Gateway or Azure Virtual WAN to reduce peering complexity across multiple VPCs.
  • Establishing private connectivity to SaaS providers using AWS PrivateLink or Azure Private Access.
  • Allocating bandwidth quotas for cloud backup jobs to avoid saturating internet links during business hours.
  • Setting up centralized logging for cloud network gateways to meet audit requirements.
  • Managing shared responsibility for cloud network security, particularly in IaaS environments.
  • Automating the provisioning of cloud subnets using Terraform, aligned with naming and tagging standards.

Module 6: Automating Network Operations

  • Developing Ansible playbooks to standardize switch firmware upgrades across 200+ branch locations.
  • Using Python scripts to extract BGP neighbor states and generate outage alerts before failures occur.
  • Implementing GitOps workflows for network configuration changes with peer review and rollback capabilities.
  • Integrating network automation tools with change management systems to enforce CAB approval processes.
  • Building dashboards in Grafana to visualize interface utilization trends from NetFlow data.
  • Validating configuration templates against compliance baselines using tools like Batfish or NCC.

Module 7: Governing Network Performance and Reliability

  • Establishing SLAs with ISPs that include financial penalties for uptime below 99.99%.
  • Deploying synthetic transaction monitoring to simulate user access to critical applications from remote sites.
  • Conducting regular failover drills for core network components without disrupting live traffic.
  • Allocating buffer capacity on backbone links to accommodate unexpected traffic spikes during mergers.
  • Setting thresholds for interface error rates that trigger automated ticket creation in service desks.
  • Reviewing network utilization reports quarterly to identify underused circuits for cost optimization.

Module 8: Managing Organizational Change and Stakeholder Alignment

  • Coordinating network cutover windows with regional operations teams across multiple time zones.
  • Presenting technical migration plans to non-technical executives using business impact assessments.
  • Training helpdesk staff on new troubleshooting procedures for SD-WAN and cloud connectivity issues.
  • Negotiating with facility managers to secure power and cooling for new network equipment in branch offices.
  • Documenting rollback procedures for network upgrades, including pre-change configuration backups.
  • Facilitating cross-departmental workshops to align network policies with application team deployment cycles.
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