Azure Network Function Manager Tutorial: Architecture, Pricing, Use Cases, and Hands-On Guide for Networking

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Networking

1. Introduction

What this service is

Azure Network Function Manager is an Azure networking and telecom-focused service area used to onboard, deploy, and manage network functions (for example, virtual network functions (VNFs) and cloud-native network functions (CNFs)) across Azure and supported hybrid/edge environments.

Simple explanation (one paragraph)

If your organization runs network appliances as software—firewalls, packet cores, SD-WAN components, load balancers, DPI, routing stacks, and other telecom/network functions—Azure Network Function Manager helps you treat those functions like managed applications: you can package them, publish them, deploy them to target sites, and operate them with consistent lifecycle controls.

Technical explanation (one paragraph)

At a technical level, Azure Network Function Manager (often encountered alongside Azure’s telecom operator services) provides an Azure control-plane for network function onboarding (definitions/packages), deployment orchestration to target environments (“sites”), and ongoing lifecycle management (upgrade/rollback/config changes) with Azure-native governance, RBAC, and monitoring integrations. Exact capabilities and supported targets can vary by region and by the operator/telecom service stack you are using—verify the latest scope in official docs.

What problem it solves

Teams operating distributed network functions typically struggle with: – Inconsistent packaging and versioning across vendors and environments. – Manual deployments across many sites (regional data centers, edge locations, MEC sites). – Fragmented governance and security (who can deploy/upgrade what, and where). – Operational blind spots (monitoring/logging not standardized). – Slow change management when network functions must be upgraded safely at scale.

Azure Network Function Manager addresses these with an Azure-based management approach so you can operate network functions more like modern cloud workloads—without losing the controls and separation-of-duties required in production networks.

Important note on naming and scope: “Azure Network Function Manager” is not a general-purpose enterprise networking product like Azure Virtual Network. It is associated with network function lifecycle management for telecom/edge scenarios. Azure product branding and portals can evolve; verify the current name, availability, and feature set in official Microsoft documentation before committing to an architecture.

2. What is Azure Network Function Manager?

Official purpose

Azure Network Function Manager’s purpose is to provide a centralized management plane in Azure to onboard, deploy, and operate network functions (VNFs/CNFs) across supported environments using Azure governance, security, and operations practices.

Because Microsoft’s telecom and hybrid networking portfolio includes multiple related offerings, you should treat Azure Network Function Manager as a network function lifecycle management capability within Azure’s broader operator/hybrid networking ecosystem. Confirm the exact service boundaries in official docs for your scenario.

Core capabilities

Common, realistic capabilities in this space include: – Network function onboarding: importing or referencing network function packages, images, templates, and metadata. – Network function definition/versioning: keeping track of vendor versions and compatible deployment profiles. – Deployment orchestration: deploying network functions to a target environment and managing dependencies. – Lifecycle management: upgrading, scaling (where applicable), configuration changes, and retirement. – Governance and access control: using Azure RBAC and resource organization (subscriptions/resource groups) to control who can publish, deploy, and manage functions. – Observability integration: aligning with Azure Monitor/Log Analytics patterns for logs and metrics (exact integration points depend on the underlying network function and target platform).

Major components (conceptual model)

While component names can differ in the portal and APIs, the typical model includes:

  • Publishers / Vendors: entities providing network function packages.
  • Network Function Definitions: the “what” (package, version, deployment profiles).
  • Sites: the “where” (target locations/environments).
  • Deployments / Instances: the “running thing” (a deployed network function instance).
  • Artifacts/Images: container images, VM images, Helm charts, templates, and configuration bundles stored in a registry or storage service (often external to the manager itself).

Service type

  • Control-plane / management service: Azure Network Function Manager primarily manages metadata, orchestration intent, and lifecycle operations. The data plane (actual packet processing) runs in the target compute environment (Azure, edge, or hybrid platform depending on what’s supported).

Scope (regional/global/subscription)

In Azure, most management services are: – Subscription-scoped for resource organization and billing boundaries. – Regionally available depending on service rollout (some telecom services are limited to specific regions). – Tenant-wide governance through Entra ID (Azure AD) identity.

For Azure Network Function Manager specifically, verify: – Supported Azure regions. – Supported target platforms (Azure, specific edge stacks, partner platforms). – Any required onboarding/approval (common for telecom/operator services).

How it fits into the Azure ecosystem

Azure Network Function Manager typically fits alongside: – Azure networking foundations: Azure Virtual Network, routing, load balancing, private connectivity. – Compute platforms for network functions: Azure VM-based VNFs, Kubernetes-based CNFs (for example, AKS), or operator/edge stacks. – Identity: Microsoft Entra ID for authentication, Azure RBAC for authorization. – Operations: Azure Monitor, Log Analytics, activity logs, policy, and tagging. – DevOps: CI/CD pipelines for onboarding packages and rolling out updates.

3. Why use Azure Network Function Manager?

Business reasons

  • Faster time to deploy network services across many sites with repeatable workflows.
  • Reduced operational cost by standardizing onboarding, deployment, and lifecycle tasks.
  • Vendor/package governance: better control of which network functions and versions are approved.
  • Auditability: change tracking aligned to Azure activity logs and governance practices.

Technical reasons

  • Consistency across heterogeneous environments (to the extent the service supports them).
  • Versioned definitions and controlled rollouts instead of ad-hoc scripts.
  • Integration with Azure resource model: tagging, RBAC, policy, resource groups.

Operational reasons

  • Repeatable deployments with standard validation and rollback patterns (where supported).
  • Central inventory of network functions, deployments, and target sites.
  • Standard monitoring patterns by integrating with Azure Monitor/Log Analytics (implementation varies).

Security/compliance reasons

  • Least privilege with Azure RBAC roles and resource scopes.
  • Separation of duties: publisher onboarding vs deployment vs operations.
  • Audit logs: change events recorded at the Azure control-plane layer.
  • Policy enforcement: aligning deployments with allowed regions, tags, SKUs, and naming.

Scalability/performance reasons

  • Scales operationally: supports many sites and deployments managed under consistent processes.
  • Performance is primarily determined by the deployed network function and its target environment, not the manager itself.

When teams should choose it

Choose Azure Network Function Manager when you: – Operate network functions as software at scale (telecom, SD-WAN, security service edges, MEC). – Need centralized lifecycle management and governance. – Have multi-site deployments where manual rollout is slow and risky.

When teams should not choose it

It may be the wrong fit if you: – Need general enterprise networking primitives (use Azure Virtual Network, Azure Firewall, Application Gateway, etc.). – Only run a small number of appliances and can manage them with standard VM/Kubernetes tooling. – Require a feature that is not supported (platform targets, vendor package formats, region availability). In those cases, consider self-managed NFV MANO, Kubernetes GitOps tooling, or vendor-specific managers.

4. Where is Azure Network Function Manager used?

Industries

  • Telecommunications (mobile core, IMS, RAN adjunct services, MEC workloads)
  • Managed service providers (MSPs) offering network/security services
  • Large enterprises with distributed edge networks (retail, manufacturing, logistics) when using software network functions
  • Government/regulated sectors using approved network functions at edge sites

Team types

  • Network engineering and NFV/telecom platform teams
  • Cloud platform engineering teams supporting edge/Kubernetes/VM estates
  • DevOps/SRE teams operating CNFs in Kubernetes
  • Security operations teams when network functions include security appliances

Workloads

  • CNFs running on Kubernetes (service mesh, gateways, packet processing)
  • VNFs running on VMs (legacy appliances migrated to virtualized form)
  • Hybrid edge deployments where the data plane must be near users/devices

Architectures

  • Central management plane in Azure + distributed data plane across regions/sites
  • Hub-and-spoke governance model across subscriptions
  • Multi-environment promotion pipelines (dev → staging → production sites)

Real-world deployment contexts

  • Rolling out the same network function to dozens or hundreds of edge sites
  • Managing multi-vendor network functions under a unified control model
  • Enforcing compliance and audit for network changes

Production vs dev/test usage

  • Dev/test: validate onboarding packages, test upgrades, rehearsal deployments to non-production sites.
  • Production: controlled rollout strategies, maintenance windows, monitored upgrades, strict RBAC, immutable artifacts, and mandatory change records.

5. Top Use Cases and Scenarios

Below are realistic scenarios where Azure Network Function Manager is commonly evaluated. Exact implementation details depend on supported platforms and vendor packages—verify current capabilities in official docs.

1) Multi-site CNF rollout with version control

  • Problem: Rolling out a CNF upgrade across many edge clusters leads to drift and outages.
  • Why this service fits: Central definitions and controlled deployments reduce inconsistency.
  • Example: Upgrade a CNF-based gateway from v1.2 to v1.3 across 50 MEC sites with staged waves.

2) Standardized onboarding for multi-vendor network functions

  • Problem: Each vendor provides different packaging/docs; onboarding is inconsistent.
  • Why this service fits: A centralized onboarding workflow and metadata catalog standardize what “approved” means.
  • Example: A telecom operator maintains an approved catalog of packet core VNFs/CNFs per region.

3) Separation-of-duties for network changes

  • Problem: Same engineers publish packages and deploy to production, increasing risk.
  • Why this service fits: Azure RBAC scopes and roles can separate publisher vs deployer vs operator responsibilities.
  • Example: Vendor management team onboards a new firewall CNF version; production ops team deploys it later.

4) Controlled deployment to regulated sites

  • Problem: Some sites require strict compliance (region constraints, change approvals, auditing).
  • Why this service fits: Azure resource governance + activity logs support audit evidence and enforcement.
  • Example: Only EU regions/sites can run a lawful intercept function; policy blocks other regions.

5) Inventory and lifecycle tracking of network functions

  • Problem: Teams lose track of which sites run which version.
  • Why this service fits: A central control-plane can maintain a deployment inventory.
  • Example: Generate an inventory view showing all sites still running a vulnerable version.

6) Blue/green or canary upgrades (where supported)

  • Problem: Upgrades cause downtime without safe rollout strategies.
  • Why this service fits: Lifecycle tooling can support staged rollouts (implementation varies).
  • Example: Deploy vNext to 5% of sites, validate KPIs, then proceed.

7) Integrating NF lifecycle with CI/CD

  • Problem: NF onboarding and deployment is manual and slow.
  • Why this service fits: Azure-native APIs and RBAC allow pipeline-driven deployments with approvals.
  • Example: A release pipeline publishes a new NF definition after security scanning, then creates staged deployments.

8) Edge site bootstrap and repeatability

  • Problem: Bringing a new site online takes weeks due to inconsistent setup.
  • Why this service fits: “Site” abstraction enables repeatable targeting and consistent deployment steps.
  • Example: A retail chain adds 20 new stores; each site gets the same SD-WAN VNF stack.

9) Policy-driven governance for tags, naming, and allowed SKUs

  • Problem: Cost allocation and governance are weak across distributed deployments.
  • Why this service fits: Azure Policy and tagging can be enforced on deployments and supporting resources.
  • Example: Require CostCenter, Environment, and Owner tags on all NF deployments.

10) Operations integration with Azure Monitor

  • Problem: Network function logs/metrics are siloed and not correlated.
  • Why this service fits: Central management plus Azure monitoring patterns improve observability.
  • Example: Correlate CNF pod logs (Kubernetes) with deployment events and Azure activity logs during an incident.

11) Marketplace/partner NF distribution (where applicable)

  • Problem: Distributing NF packages internally and ensuring integrity is difficult.
  • Why this service fits: Publisher workflows can control distribution and approvals.
  • Example: A partner firewall vendor publishes approved images; the operator deploys them to specific sites.

12) Disaster recovery planning for network services

  • Problem: Restoring a network function service stack after site failure is complex.
  • Why this service fits: Definitions and deployment templates enable repeatable redeployments.
  • Example: Rebuild a failed edge site by reapplying the NF deployment model to a replacement cluster.

6. Core Features

Because Azure Network Function Manager’s exact feature list can vary with Azure telecom/operator offerings and release stages, the features below are written as current, conservative, and commonly documented capabilities for network-function lifecycle management. Always verify in official docs for your environment.

Feature 1: Network function onboarding (definitions/packages)

  • What it does: Lets you register a network function package/definition (vendor artifact + metadata + version).
  • Why it matters: Creates a consistent “source of truth” for what can be deployed.
  • Practical benefit: Reduces drift, improves repeatability, and simplifies audit.
  • Limitations/caveats: Packaging formats and requirements can be vendor- and platform-specific.

Feature 2: Versioned network function catalog

  • What it does: Tracks versions, compatibility, and metadata for network functions.
  • Why it matters: Upgrades and rollbacks are safer when versions are explicit and controlled.
  • Practical benefit: You can identify vulnerable versions and plan remediation.
  • Limitations/caveats: The catalog typically doesn’t replace a full artifact registry; it references artifacts stored elsewhere.

Feature 3: Target “site” management (deployment locations)

  • What it does: Represents a deployment target (region/site/edge environment) with associated parameters.
  • Why it matters: Large deployments are site-driven; you need a consistent way to define targets.
  • Practical benefit: New site onboarding becomes repeatable.
  • Limitations/caveats: Site modeling depends on the supported platforms and may require additional onboarding steps.

Feature 4: Deployment orchestration (create/update/delete deployments)

  • What it does: Creates a deployment of a network function definition into a site.
  • Why it matters: Orchestration reduces manual steps and standardizes outcomes.
  • Practical benefit: Operators can deploy consistently across many sites.
  • Limitations/caveats: Actual deployment mechanics depend on the target (VM vs Kubernetes vs other).

Feature 5: Lifecycle operations (upgrade, configuration, rollback patterns)

  • What it does: Supports managed updates to deployments and associated configuration changes.
  • Why it matters: Network functions often require controlled maintenance with minimal downtime.
  • Practical benefit: Safer change management and lower outage risk.
  • Limitations/caveats: Not all NFs support in-place upgrades; some require blue/green approaches.

Feature 6: Azure RBAC integration

  • What it does: Uses Azure role-based access control for who can view/publish/deploy/manage.
  • Why it matters: Enforces least privilege and separation of duties.
  • Practical benefit: Reduces blast radius and supports audits.
  • Limitations/caveats: You must design RBAC roles carefully; overly broad roles are a common risk.

Feature 7: Azure Resource Manager (ARM) resource model

  • What it does: Exposes resources as Azure Resource Manager entities for governance and automation.
  • Why it matters: ARM enables consistent automation, policy, tagging, and auditing.
  • Practical benefit: CI/CD can manage NF deployments similarly to other Azure resources.
  • Limitations/caveats: Some advanced operations might require vendor tooling or platform-specific steps.

Feature 8: Monitoring and auditing alignment

  • What it does: Aligns with Azure activity logs and (where supported) diagnostics/metrics to Azure Monitor.
  • Why it matters: You need to correlate “who changed what” with “what broke.”
  • Practical benefit: Faster incident triage and stronger compliance evidence.
  • Limitations/caveats: Observability quality depends heavily on NF implementation and target platform logging.

Feature 9: Governance support (tags, policies, locks)

  • What it does: Supports Azure tags and policies to enforce standards.
  • Why it matters: Distributed network services become expensive and chaotic without governance.
  • Practical benefit: Better chargeback/showback and predictable operations.
  • Limitations/caveats: Policies must be tested to avoid blocking critical production operations.

7. Architecture and How It Works

High-level architecture

Azure Network Function Manager typically follows a control-plane/data-plane separation:

  • Control plane (Azure):
  • Stores definitions and deployment intent as Azure resources.
  • Authenticates via Microsoft Entra ID.
  • Authorizes via Azure RBAC.
  • Records changes via Azure Activity Log.

  • Integrates (optionally) with Azure Monitor for diagnostics.

  • Data plane (target sites):

  • The network function runs on compute (VMs, Kubernetes, or other supported platforms).
  • Networking and performance depend on the site and NF design.
  • Telemetry is emitted by the NF and platform.

Request / data / control flow (conceptual)

  1. A publisher/admin onboards a network function definition (metadata + artifact references).
  2. An operator selects a site (target environment) and creates a deployment.
  3. Azure Network Function Manager (and related platform components) initiates deployment to the target environment using supported mechanisms.
  4. The NF runs in the target site, while Azure provides lifecycle operations and change auditing.
  5. Telemetry flows to monitoring systems (Azure Monitor/Log Analytics and/or vendor tooling).

Integrations with related services (common in Azure)

  • Microsoft Entra ID: identity provider for users and service principals.
  • Azure RBAC: fine-grained authorization at subscription/resource group/resource scope.
  • Azure Policy: enforce tags, allowed locations, naming conventions.
  • Azure Monitor / Log Analytics: centralize logs/metrics (where supported).
  • Azure Storage / Container registries: store artifacts (depends on implementation; often external).
  • AKS / VMs / hybrid platforms: where the NF actually runs.

Dependency services

Dependencies vary, but you should expect: – A supported target platform (Kubernetes cluster, VM infrastructure, or telecom edge stack). – Artifact repositories (container registries, storage accounts) to host images/packages. – Network connectivity between control-plane actions and target platform management endpoints.

Security/authentication model

  • Authentication: Microsoft Entra ID.
  • Authorization: Azure RBAC.
  • Automation identity: service principals or managed identities used by CI/CD pipelines.
  • Audit: Azure Activity Logs provide control-plane auditability.

Networking model

  • Control-plane operations occur within Azure’s management plane.
  • Data-plane packet flows remain in the target environment (Azure VNets, edge networks, etc.).
  • Connectivity, private endpoints, and firewalling depend on where artifacts and management endpoints live.

Monitoring/logging/governance considerations

  • Use Activity Logs for “who did what.”
  • Centralize NF logs/metrics in Log Analytics when possible.
  • Enforce tagging and naming policies for chargeback and incident response.
  • Build dashboards around deployment inventory, version posture, and failure rates.

Simple architecture diagram (Mermaid)

flowchart LR
  U[Operator / DevOps] -->|Entra ID auth| CP[Azure Network Function Manager<br/>Control Plane]
  CP --> ARM[Azure Resource Manager]
  CP --> CAT[Function Definitions<br/>(catalog/metadata)]
  CP -->|Deploy intent| SITE[Site / Target Environment]
  SITE --> NF[Network Function Instance<br/>(VNF/CNF)]
  NF --> MON[Logs/Metrics<br/>Azure Monitor/Log Analytics]
  ARM --> ACT[Azure Activity Log]

Production-style architecture diagram (Mermaid)

flowchart TB
  subgraph Tenant[Azure Tenant]
    AAD[Microsoft Entra ID]
    ARM[Azure Resource Manager]
    POL[Azure Policy]
    MON[Azure Monitor + Log Analytics]
    KV[Azure Key Vault]
  end

  subgraph Subscriptions[Subscriptions / Management Groups]
    NFM[Azure Network Function Manager<br/>Resources]
    RG1[RG: NF-Catalog]
    RG2[RG: NF-Deployments-Prod]
  end

  subgraph Artifact[Artifact Supply Chain]
    ACR[Container Registry / Artifact Repo<br/>(verify supported options)]
    SCAN[Image scanning / SAST/DAST<br/>(tooling)]
  end

  subgraph Sites[Distributed Sites]
    S1[Site A: Edge/MEC]
    S2[Site B: Edge/MEC]
    S3[Site C: Azure Region]
  end

  subgraph DataPlane[Runtime Platforms]
    AKS1[Kubernetes Cluster / AKS<br/>(if CNF)]
    VM1[VM Infrastructure<br/>(if VNF)]
  end

  AAD --> NFM
  NFM --> ARM
  POL --> ARM
  NFM -->|reads artifacts| ACR
  SCAN --> ACR
  NFM -->|deployment orchestration| S1
  NFM -->|deployment orchestration| S2
  NFM -->|deployment orchestration| S3
  S1 --> AKS1
  S2 --> VM1
  AKS1 --> MON
  VM1 --> MON
  ARM --> MON
  ARM -->|audit| ACTLOG[Azure Activity Log]
  KV --> NFM

8. Prerequisites

Because access to Azure Network Function Manager can be limited by region, subscription type, or telecom/operator program enrollment, validate prerequisites early.

Account/subscription/tenant requirements

  • An Azure subscription where the service is supported.
  • If this service is part of an operator/telecom offering in your environment, you may need:
  • A specific subscription type or enrollment.
  • Approved access (preview/limited access).

Permissions / IAM roles

You typically need: – Permission to register resource providers: Owner or Contributor at subscription scope (or a custom role that includes Microsoft.Resources/subscriptions/providers/register/action). – Permission to create/manage resources in a resource group: Contributor. – For governance tasks: Resource Policy Contributor (or broader). – For monitoring: Log Analytics Contributor (workspace) and Monitoring Contributor (as needed).

Principle of least privilege: in production, separate “publisher” and “deployer/operator” roles into different groups and scopes.

Billing requirements

  • A valid billing account for any underlying resources (compute, storage, networking).
  • If network functions are sourced from partners/marketplaces, there may be additional licensing costs (vendor-dependent).

CLI/SDK/tools needed

  • Azure CLI (recommended): https://learn.microsoft.com/cli/azure/install-azure-cli
  • Optional: jq for JSON parsing in shell.
  • Access to Azure Portal for discovery and validation.

Region availability

  • Verify in official docs which Azure regions support Azure Network Function Manager and related telecom/hybrid networking services.
  • Some telecom services are available only in select regions.

Quotas/limits

  • Azure subscription quotas for:
  • Resource groups, deployments, and ARM limits.
  • Underlying compute (VM cores) and Kubernetes cluster quotas.
  • Service-specific quotas for network function resources (verify in official docs).

Prerequisite services (typical)

Depending on your target: – Kubernetes (AKS or supported hybrid Kubernetes) for CNFs. – Azure VM infrastructure for VNFs. – Artifact storage/registries for NF images/packages. – Log Analytics workspace for centralized logging.

9. Pricing / Cost

Current pricing model (what you should verify)

Azure Network Function Manager pricing can be one of the following models (Microsoft uses both patterns across management services): 1. No direct charge for the management plane, while you pay for underlying resources used by deployments (compute, storage, networking, monitoring). 2. Usage-based management fees (less common but possible for specialized telecom services). 3. Bundled/contract-based pricing as part of operator offerings.

Because telecom/operator services often have specific commercial terms, do not assume it is free or paid. Confirm via: – Azure pricing pages: https://azure.microsoft.com/pricing/ – Azure Pricing Calculator: https://azure.microsoft.com/pricing/calculator/ – The specific service’s pricing page (verify in official docs).

Pricing dimensions to consider

Even if the manager itself has minimal direct cost, your total cost usually depends on:

  • Compute for VNFs/CNFs
  • VM sizes, CPU/RAM, accelerated networking, disk throughput.

  • AKS node pools (system + user pools), autoscaling settings.

  • Networking

  • Load balancers, NAT gateways, public IPs (if any), VPN/ExpressRoute.
  • Data transfer/egress charges (especially cross-region or internet egress).

  • Private connectivity to registries and monitoring endpoints.

  • Storage

  • Container registry or artifact storage for NF images.

  • Persistent volumes for stateful CNFs.

  • Observability

  • Log Analytics ingestion and retention.

  • Metrics and alerting, dashboards, and query costs.

  • Security

  • Key Vault operations, certificate management.

  • Defender for Cloud (if enabled) and image scanning tools.

  • Licensing

  • Vendor licensing for proprietary network functions (BYOL or consumption-based).
  • Marketplace costs where applicable.

Cost drivers (practical)

  • Number of sites and deployments.
  • High availability designs (active/active, N+1).
  • Packet throughput requirements driving larger compute.
  • Logging verbosity and retention (often a top hidden cost).
  • Cross-site artifact pulls and telemetry egress.

Hidden or indirect costs

  • CI/CD runners and build agents for packaging images.
  • Test environments that mirror production.
  • Incident response and compliance overhead if governance is weak.
  • Data plane egress: network functions can generate high-volume telemetry.

Cost optimization tips

  • Centralize and deduplicate artifacts (avoid pulling large images repeatedly across regions if not necessary).
  • Use log sampling and structured logging; avoid verbose debug logs in production.
  • Right-size node pools/VMs based on measured throughput, not vendor defaults.
  • Use tags (CostCenter, Service, Environment, Owner) for chargeback and cleanup.
  • Apply retention policies in Log Analytics and archive older logs if required.

Example low-cost starter estimate (no fabricated numbers)

A realistic “starter” lab cost profile often includes: – 1 small resource group – 1 Log Analytics workspace – Optional: 1 small AKS cluster or a few small VMs (this dominates cost) – Minimal log retention

Because costs vary by region, SKUs, and hours used, use the Azure Pricing Calculator and model: – AKS worker node hours (or VM hours) – Log Analytics GB/day ingestion + retention – Container registry storage + network egress

Example production cost considerations

In production, expect costs to be driven by: – HA compute across multiple sites/regions. – Premium networking (ExpressRoute, private connectivity). – High log ingestion volumes. – Vendor NF licensing and support contracts.

10. Step-by-Step Hands-On Tutorial

This lab is designed to be executable even if Azure Network Function Manager is not enabled in your subscription by focusing on: 1) discovering whether Azure Network Function Manager (or its underlying resource provider) is available, 2) preparing governance/monitoring foundations, 3) validating the control-plane inventory and permissions.

Where steps depend on service availability, they are clearly marked.

Objective

  • Determine whether Azure Network Function Manager is available in your Azure subscription.
  • Register the relevant Azure resource provider (if permitted).
  • Create a governance-ready resource group and monitoring workspace.
  • Learn how to enumerate Azure Network Function Manager-related resource types and audit changes.

Lab Overview

You will: 1. Set up environment variables and select a subscription. 2. Create a resource group and Log Analytics workspace for monitoring. 3. Identify and register the likely Azure resource provider namespace(s). 4. Enumerate resource types and API versions available in your subscription. 5. (Optional) Discover existing Azure Network Function Manager resources. 6. Configure baseline governance (tags + Azure Policy assignment example). 7. Validate auditing via Activity Log queries. 8. Clean up.

Why this lab is structured this way: Azure Network Function Manager availability can be restricted. The safest beginner lab is to build repeatable discovery and governance steps that work everywhere, then extend into deployment once you have confirmed the service is enabled and you have a vendor package and supported target site.

Step 1: Set your subscription context

Action (Azure CLI):

az login
az account show --output table
az account list --output table

If you have multiple subscriptions, set the one you will use:

SUBSCRIPTION_ID="<your-subscription-id>"
az account set --subscription "$SUBSCRIPTION_ID"
az account show --output table

Expected outcome – You see the correct subscription selected.

Step 2: Create a resource group for Azure Network Function Manager operations

Choose a region that is likely supported for your environment. If you’re unsure, pick a common region you already use and later verify service support.

LOCATION="eastus"   # change as needed
RG="rg-az-nfm-lab"

az group create \
  --name "$RG" \
  --location "$LOCATION" \
  --tags Service="AzureNetworkFunctionManager" Environment="Lab" Owner="$(whoami)"

Expected outcome – Resource group rg-az-nfm-lab is created.

Step 3: Create a Log Analytics workspace for auditing and troubleshooting

LAW="law-az-nfm-lab-$RANDOM"

az monitor log-analytics workspace create \
  --resource-group "$RG" \
  --workspace-name "$LAW" \
  --location "$LOCATION"

Fetch workspace details:

az monitor log-analytics workspace show \
  --resource-group "$RG" \
  --workspace-name "$LAW" \
  --output table

Expected outcome – A Log Analytics workspace exists to centralize logs/queries later.

Step 4: Discover the Azure resource provider for Azure Network Function Manager

In many Azure service areas, the “service name in the portal” maps to one or more resource provider namespaces. For network function lifecycle services, a commonly referenced namespace in Azure telecom/hybrid networking contexts is:

  • Microsoft.HybridNetwork (verify in official docs for your exact environment)

First, search for likely providers that contain “Network”, “HybridNetwork”, or similar:

az provider list --query "[?contains(namespace,'Network') || contains(namespace,'Hybrid')].namespace" -o tsv | sort

Now specifically check the suspected namespace:

az provider show --namespace Microsoft.HybridNetwork --output jsonc

Expected outcome – If present, you see provider registration state (Registered/NotRegistered) and available resource types.

If Microsoft.HybridNetwork is not found, that does not prove the service is unavailable; naming may differ by environment. In that case, use Azure Portal search for “Network Function Manager” and check the resource type shown on creation panes, or verify in official docs.

Step 5: Register the provider namespace (if allowed)

If the provider exists but is not registered:

az provider register --namespace Microsoft.HybridNetwork

Wait and confirm:

az provider show --namespace Microsoft.HybridNetwork --query "registrationState" -o tsv

Expected outcome – Registration state becomes Registered.

Common errors – AuthorizationFailed: you need subscription-level permission to register providers.

Step 6: Enumerate resource types and API versions available

List resource types exposed by the provider:

az provider show --namespace Microsoft.HybridNetwork \
  --query "resourceTypes[].{resourceType:resourceType, apiVersions:apiVersions[0]}" \
  -o table

If you want all API versions for a specific resource type, you can inspect the JSON output:

az provider show --namespace Microsoft.HybridNetwork --output jsonc

Expected outcome – You have a list of resource types and at least one API version per type that your subscription supports.

This step is valuable because it avoids guessing API versions when interacting via REST.

Step 7 (Optional): Discover existing Azure Network Function Manager resources in your subscription

If you already have deployments (for example from a telecom platform team), list resources under that provider:

az resource list --namespace Microsoft.HybridNetwork -o table

Or filter by resource group:

az resource list --resource-group "$RG" --namespace Microsoft.HybridNetwork -o table

Expected outcome – You either see existing resources (definitions/sites/deployments) or an empty list.

Step 8: Establish baseline governance (tags + Azure Policy example)

8a) Confirm tags on the resource group

az group show --name "$RG" --query "tags" -o jsonc

8b) (Optional) Assign a built-in policy to require tags

Azure has built-in policies such as “Require a tag and its value”. You can list definitions and select one. For example:

az policy definition list --query "[?contains(displayName, 'Require a tag')].{name:name, displayName:displayName}" -o table

Pick a definition name and assign it to your resource group scope:

POLICY_DEF_NAME="<policy-definition-name-from-list>"
TAG_NAME="CostCenter"

az policy assignment create \
  --name "pa-require-$TAG_NAME" \
  --display-name "Require tag $TAG_NAME" \
  --scope "$(az group show -n "$RG" --query id -o tsv)" \
  --policy "$POLICY_DEF_NAME" \
  --params "{\"tagName\":{\"value\":\"$TAG_NAME\"}}"

Expected outcome – A policy assignment is created (note: enforcement effects depend on the policy definition and mode).

If policy assignment is blocked by permissions, you may need Resource Policy Contributor or higher.

Step 9: Validate auditing via Activity Log

List recent operations in the resource group:

az monitor activity-log list \
  --resource-group "$RG" \
  --max-events 20 \
  --output table

Expected outcome – You see create operations for the resource group and Log Analytics workspace, plus any provider registration events.

Validation

Use this checklist:

  1. Provider registration bash az provider show --namespace Microsoft.HybridNetwork --query "registrationState" -o tsv – Expected: Registered

  2. Resource types discovered bash az provider show --namespace Microsoft.HybridNetwork --query "resourceTypes[].resourceType" -o tsv – Expected: a list of resource types (varies by subscription)

  3. Inventory query works bash az resource list --namespace Microsoft.HybridNetwork -o table – Expected: output (empty or populated)

  4. Governance basics – Tags exist on the resource group – Optional policy assignment created successfully

Troubleshooting

Issue: az provider show returns “could not be found”

  • The provider namespace may be different in your environment or the service is not available.
  • Use Azure Portal search for Network Function Manager and inspect the resource type.
  • Verify in official docs which provider is used for Azure Network Function Manager.

Issue: Provider won’t register

  • You may not have permission. Ask a subscription admin to register it.
  • Some providers require additional onboarding/approval for preview/limited access.

Issue: Policy assignment fails

  • You need policy permissions at the scope.
  • Try at subscription scope if allowed, or request access.

Issue: You can’t see any Azure Network Function Manager resources

  • This is normal if you haven’t onboarded any network functions or the service is not enabled.
  • Confirm region and service availability and whether your org’s telecom platform team manages these resources elsewhere.

Cleanup

Delete the resource group (this deletes the Log Analytics workspace and policy assignments scoped to the RG):

az group delete --name "$RG" --yes --no-wait

If you registered a provider and want to leave it registered (common), do nothing. If you must unregister (rare), verify implications first—unregistering can break existing deployments.

11. Best Practices

Architecture best practices

  • Separate control and data plane concerns: Azure Network Function Manager manages lifecycle; design data plane networking (routing, LBs, firewalling) explicitly.
  • Use hub-and-spoke subscription design:
  • One subscription/resource group for NF catalog/onboarding.
  • Separate subscriptions/resource groups for dev/test/prod deployments.
  • Standardize site models: define what a “site” includes (connectivity, DNS, NTP, logging, base images).

IAM/security best practices

  • Separate roles:
  • Publisher/onboarding team
  • Deployment operators
  • Read-only auditors
  • Prefer managed identities for automation where supported.
  • Use privileged identity management (PIM) for elevated roles.

Cost best practices

  • Use strict tagging for every deployment and dependency.
  • Control Log Analytics ingestion:
  • Reduce noisy logs
  • Use shorter retention where allowed
  • Archive to cheaper storage if needed
  • Right-size compute based on throughput measurements and performance testing.

Performance best practices

  • Benchmark network functions on the exact target platform and VM sizes/node types you will use in production.
  • Keep artifacts close to deployment sites to reduce pull times (while respecting security controls).
  • Use accelerated networking and appropriate NIC/VM families when required (verify NF support).

Reliability best practices

  • Design for failure domains:
  • Site-level failure
  • Cluster/node failure
  • Region-level failure (if applicable)
  • Use staged rollouts (canary/waves) for upgrades.
  • Validate rollback procedures in staging with production-like traffic.

Operations best practices

  • Build a runbook library:
  • Deployment/upgrade runbooks
  • Incident triage checklists
  • Version posture audits
  • Centralize logs/metrics and correlate with deployment events.
  • Define SLOs/SLIs per NF type (latency, throughput, error rate, packet loss).

Governance/tagging/naming best practices

  • Naming standard example:
  • nfd-<vendor>-<function>-<version>
  • nfi-<site>-<function>-<env>
  • Required tags:
  • Service, Environment, Owner, CostCenter, DataClassification, Criticality
  • Apply resource locks carefully (avoid blocking emergency remediation).

12. Security Considerations

Identity and access model

  • Authentication uses Microsoft Entra ID.
  • Authorization uses Azure RBAC at subscription/resource group/resource scopes.
  • Implement least privilege:
  • Avoid assigning Owner broadly.
  • Use custom roles if built-in roles are too permissive.

Encryption

  • Data at rest encryption is typically provided by Azure for management-plane storage.
  • Artifact repositories (registries/storage) must be configured for encryption and access control.
  • Data in transit: use TLS for artifact pulls and management endpoints.

Network exposure

  • Keep management endpoints private where possible (private endpoints/private links for registries and monitoring endpoints, if supported in your architecture).
  • Avoid public IPs for NF management interfaces unless explicitly required and tightly controlled.
  • Segment networks:
  • Management plane traffic
  • Control plane signaling
  • Data plane packet traffic

Secrets handling

  • Store credentials, tokens, and certificates in Azure Key Vault.
  • Avoid embedding secrets in templates, pipelines, or images.
  • Rotate secrets/certificates and automate rotation where possible.

Audit/logging

  • Use Azure Activity Logs for deployment operations and RBAC changes.
  • Centralize audit logs to Log Analytics or a SIEM (Microsoft Sentinel) for long-term retention and correlation.
  • Ensure operator actions are attributable (no shared accounts).

Compliance considerations

  • Telecom and network services often fall under:
  • Data residency requirements
  • Lawful intercept constraints
  • Strict change management and audit mandates
  • Use Azure Policy to enforce allowed locations and tagging for compliance reporting.

Common security mistakes

  • Over-permissive RBAC at subscription scope.
  • Storing vendor images in registries without access restrictions.
  • Allowing artifact pulls over the public internet from edge sites.
  • Not scanning images/packages before onboarding.
  • No inventory visibility of what version runs where.

Secure deployment recommendations

  • Build a secure supply chain:
  • Signed artifacts (if supported)
  • Image scanning
  • Admission controls on Kubernetes (if CNF)
  • Use dedicated subnets/VNETs for management interfaces.
  • Implement break-glass access procedures and monitor their use.

13. Limitations and Gotchas

Because this service area can be platform- and program-dependent, treat these as common gotchas to validate early:

  • Availability constraints: service may be limited to certain regions or require enrollment/approval.
  • Vendor/package constraints: only specific network function vendors and package formats may be supported.
  • Target platform constraints: some environments may be supported (AKS, specific edge stacks) and others not.
  • Lifecycle limitations: upgrades/rollbacks might be constrained by the NF design; not all functions support in-place upgrades.
  • Operational responsibility: Azure Network Function Manager does not automatically make vendor software reliable; you still need SRE practices.
  • Observability gaps: telemetry quality depends on the NF and platform; you may need vendor tooling.
  • Pricing surprises: the manager (control plane) may not be the cost driver—logging and compute usually dominate.
  • Networking complexity: data plane routing and performance tuning are still your responsibility.
  • API/version drift: resource provider API versions change—always query your subscription for supported versions (as shown in the lab).
  • Migration challenges: moving existing VNFs/CNFs into a managed lifecycle model may require repackaging and operational process changes.

14. Comparison with Alternatives

Azure Network Function Manager is a specialized lifecycle manager. Compare it with adjacent options:

  • Within Azure
  • Azure Kubernetes Service (AKS) + GitOps (Flux/Argo) for CNFs
  • Azure Virtual Machines + automation (Ansible/Terraform) for VNFs
  • Azure Operator Service Manager / Azure operator-focused services (often closely related; verify current positioning)

  • Azure Arc-enabled Kubernetes for hybrid management patterns

  • Other clouds

  • AWS Telco Network Builder (telecom NF lifecycle focus; verify fit/features)
  • Google Cloud telecom automation offerings (verify current product names and scope)

  • Vendor-managed NFV MANO platforms hosted in cloud

  • Open-source/self-managed

  • ONAP (Open Network Automation Platform)
  • OSM (Open Source MANO)
  • Kubernetes operators + Helm + Argo CD for CNF lifecycle (self-built platform)

Comparison table

Option Best For Strengths Weaknesses When to Choose
Azure Network Function Manager Telecom/edge teams managing VNFs/CNFs with Azure governance Azure-native RBAC, ARM governance, centralized lifecycle model Availability/platform/vendor constraints; may require program access You need Azure-aligned lifecycle management across many sites
AKS + GitOps (Flux/Argo) Cloud-native CNFs on Kubernetes Mature deployment patterns, strong community tooling You must build governance/inventory/lifecycle standards yourself You want maximum portability and have strong platform engineering
VM-based automation (Terraform/Ansible) Traditional VNFs on VMs Flexible, works for legacy VNFs Harder to standardize lifecycle and inventory across sites You run mostly VM VNFs and need automation quickly
Azure Arc-enabled Kubernetes Hybrid Kubernetes fleet management Unified policy/governance across clusters Not NF-specific; lifecycle patterns still up to you You manage many clusters and need consistent governance
ONAP / OSM (self-managed MANO) Large NFV operators with deep telecom needs Telecom-grade MANO concepts, multi-vendor focus High complexity and operational overhead You need full MANO breadth beyond what Azure provides
Vendor-specific NF managers Single-vendor stacks Tight integration with that vendor’s NF Lock-in, fragmented multi-vendor operations You are standardized on one vendor and need their best practices

15. Real-World Example

Enterprise example: Managed security services across distributed sites

  • Problem: A large enterprise/managed service provider runs security VNFs/CNFs (firewall, IDS/IPS, secure web gateway) across dozens of regional hubs and edge locations. Upgrades are inconsistent and auditing is painful.
  • Proposed architecture:
  • Azure Network Function Manager as the centralized lifecycle manager (control plane).
  • Separate subscriptions for dev/test/prod deployments.
  • Artifact supply chain using a hardened registry and scanning pipeline.
  • Central Log Analytics workspace (or per-region workspaces) with standardized dashboards.
  • Azure Policy enforcing tags, allowed regions, and approved SKUs.
  • Why this service was chosen:
  • Needs a catalog + controlled deployment model aligned with Azure governance.
  • Strong separation-of-duties requirements.
  • Expected outcomes:
  • Standardized upgrade waves and rollback runbooks.
  • Improved audit readiness via activity logs and inventory.
  • Reduced mean time to detect/resolve issues due to correlated telemetry.

Startup/small-team example: Edge gateway CNF for a niche IoT product

  • Problem: A startup runs an edge gateway CNF in a small number of customer sites. They want repeatable deployments and a path to scale without building a full NFV platform.
  • Proposed architecture:
  • Start with Kubernetes + GitOps for deployments.
  • Evaluate Azure Network Function Manager for onboarding/catalog and multi-site governance as the number of sites grows.
  • Central artifact registry and basic log aggregation.
  • Why this service was chosen:
  • As the footprint grows, they need centralized lifecycle and inventory beyond “just Helm charts.”
  • Expected outcomes:
  • A scalable operational model without reinventing governance.
  • Clear version posture across sites for security response.

16. FAQ

  1. Is Azure Network Function Manager the same as Azure Virtual Network?
    No. Azure Virtual Network is a foundational networking service. Azure Network Function Manager is oriented toward onboarding/deploying/operating network functions (VNFs/CNFs) in telecom/edge contexts.

  2. Do I need Kubernetes (AKS) to use Azure Network Function Manager?
    Not necessarily. Some network functions are VM-based (VNFs) while others are Kubernetes-based (CNFs). Supported targets depend on the service’s current scope—verify in official docs.

  3. Is Azure Network Function Manager generally available?
    Availability can vary by region and program. Some telecom services have limited access. Verify the current release status and region support in official documentation.

  4. What Azure resource provider does Azure Network Function Manager use?
    In many Azure telecom/hybrid networking contexts, Microsoft.HybridNetwork is relevant. Confirm the exact namespace(s) for your environment in official docs and by checking provider listings in your subscription.

  5. Does Azure Network Function Manager deploy marketplace VNFs/CNFs?
    It may support partner onboarding and deployments depending on the ecosystem and program. Marketplace and licensing aspects are vendor-dependent—verify for your target NF.

  6. How do I control who can publish vs deploy network functions?
    Use Azure RBAC with separate groups and scopes: one for onboarding/catalog management, another for deployments, and read-only roles for auditors.

  7. Can I use Terraform with Azure Network Function Manager?
    Possibly, if the resources are exposed via ARM and supported by Terraform providers. If not, you can automate via az rest/ARM templates. Verify provider support.

  8. How do I track which sites run vulnerable versions?
    Maintain a versioned catalog and deployment inventory, then query resource metadata (and your CMDB/SIEM) to identify versions by site.

  9. Does it provide packet-level monitoring?
    Typically no—Azure Network Function Manager is a lifecycle/control-plane service. Packet telemetry is provided by the network function and the runtime platform.

  10. What are the biggest cost drivers?
    Usually compute (VMs/AKS nodes), logging/retention, and networking egress. The management plane itself may not be the primary cost—verify pricing.

  11. Can I deploy across multiple subscriptions?
    Often yes via Azure’s resource model, but you must design RBAC and governance carefully. Some deployments may require the same subscription depending on platform requirements—verify in official docs.

  12. How do upgrades work?
    Upgrades depend on the NF design and platform. Some support in-place upgrades; others require blue/green or redeployments. Test upgrades in staging.

  13. Can I enforce that only approved functions run in production?
    Yes conceptually: restrict who can create deployments, use policy/tagging/approvals, and limit definitions accessible to production scopes.

  14. Is this suitable for small enterprises running one firewall VM?
    Probably not. For small footprints, VM automation or native Azure networking security services may be simpler.

  15. How do I get started if the service isn’t visible in my portal?
    Check region availability, provider registration, and whether your subscription is eligible. Work with your Microsoft account team if it’s a limited-access telecom offering.

17. Top Online Resources to Learn Azure Network Function Manager

Because Microsoft telecom/operator services can be reorganized, the most reliable approach is to start from official Microsoft Learn and then follow the “related services” chain for your environment.

Resource Type Name Why It Is Useful
Official documentation Microsoft Learn (Azure documentation home) — https://learn.microsoft.com/azure/ Starting point to search for the current Azure Network Function Manager documentation and its related services
Official documentation Azure Hybrid Network documentation (verify current pages) — https://learn.microsoft.com/azure/ (search “Hybrid Network”) Azure Network Function Manager is commonly associated with hybrid/telecom network function lifecycle topics; confirm current scope
Official documentation Azure Operator Service Manager documentation (verify current pages) — https://learn.microsoft.com/azure/ (search “Operator Service Manager”) Often closely related to onboarding and lifecycle management for operator workloads
Official documentation Azure Operator Nexus documentation (verify current pages) — https://learn.microsoft.com/azure/ (search “Operator Nexus”) Relevant when network functions target operator/edge platforms managed under Azure’s operator stack
Official pricing Azure Pricing page — https://azure.microsoft.com/pricing/ Central hub to locate official pricing pages for Azure services used in your architecture
Official pricing tool Azure Pricing Calculator — https://azure.microsoft.com/pricing/calculator/ Model total cost for compute, logging, networking, and storage dependencies
Official governance Azure Policy documentation — https://learn.microsoft.com/azure/governance/policy/ Enforce compliance requirements (tags, allowed locations, naming) around NF deployments
Official monitoring Azure Monitor documentation — https://learn.microsoft.com/azure/azure-monitor/ Design logging/metrics/alerting for network function operations
Official identity/security Azure RBAC documentation — https://learn.microsoft.com/azure/role-based-access-control/ Implement least privilege and separation of duties
Tooling Azure CLI documentation — https://learn.microsoft.com/cli/azure/ Automate discovery, provider registration, and inventory queries
Community (reputable) CNCF GitOps resources (Flux/Argo) — https://www.cncf.io/ Helpful if your network functions are CNFs on Kubernetes and you need rollout patterns
Community (reputable) Kubernetes Operators pattern — https://kubernetes.io/ Practical for CNF lifecycle design when integrating with Azure governance

18. Training and Certification Providers

Institute Suitable Audience Likely Learning Focus Mode Website URL
DevOpsSchool.com DevOps engineers, SREs, platform teams DevOps, cloud operations, automation, CI/CD foundations applicable to operating network functions Check website https://www.devopsschool.com/
ScmGalaxy.com Beginners to intermediate SCM, DevOps fundamentals, process and tooling practices useful for controlled deployments Check website https://www.scmgalaxy.com/
CLoudOpsNow.in Cloud engineers, operations teams Cloud operations practices (monitoring, governance, cost control) for Azure environments Check website https://www.cloudopsnow.in/
SreSchool.com SREs, reliability engineers Reliability engineering, incident response, SLOs/SLIs for production services including network functions Check website https://www.sreschool.com/
AiOpsSchool.com Ops teams, engineering managers AIOps concepts (event correlation, anomaly detection) to improve operations for complex distributed systems Check website https://www.aiopsschool.com/

19. Top Trainers

Platform/Site Likely Specialization Suitable Audience Website URL
RajeshKumar.xyz DevOps/cloud training content (verify current offerings) Engineers seeking practical DevOps/cloud guidance https://www.rajeshkumar.xyz/
devopstrainer.in DevOps training (verify current offerings) Beginners to intermediate DevOps practitioners https://www.devopstrainer.in/
devopsfreelancer.com Freelance DevOps help/training (verify current offerings) Teams needing hands-on assistance or short-term enablement https://www.devopsfreelancer.com/
devopssupport.in DevOps support/training (verify current offerings) Ops teams needing troubleshooting and operational guidance https://www.devopssupport.in/

20. Top Consulting Companies

Company Likely Service Area Where They May Help Consulting Use Case Examples Website URL
cotocus.com Cloud/DevOps consulting (verify current offerings) Architecture reviews, automation, operations setup Building CI/CD pipelines for NF onboarding; governance and tagging strategy; monitoring integration https://www.cotocus.com/
DevOpsSchool.com DevOps consulting and training Platform engineering practices, DevOps transformations Designing rollout pipelines; RBAC and policy design; operational runbooks for distributed deployments https://www.devopsschool.com/
DEVOPSCONSULTING.IN DevOps consulting (verify current offerings) DevOps process/tooling implementation Azure automation patterns; cost optimization; audit logging and incident response processes https://www.devopsconsulting.in/

21. Career and Learning Roadmap

What to learn before this service

To use Azure Network Function Manager effectively, you should understand:

  • Azure fundamentals
  • Subscriptions, resource groups, ARM, Azure Policy, RBAC
  • Networking fundamentals
  • IP addressing, routing, BGP (where relevant), load balancing, DNS
  • Security fundamentals
  • Least privilege, secrets management, logging/auditing
  • Compute platforms
  • VMs (for VNFs)
  • Kubernetes (for CNFs): deployments, services, ingress, CNI, storage, observability

What to learn after this service

  • Advanced rollout strategies
  • Canary, blue/green, progressive delivery for CNFs
  • SRE practices
  • SLOs/SLIs, error budgets, incident management, postmortems
  • Supply-chain security
  • Image signing, SBOMs, provenance, vulnerability management
  • Multi-site operations
  • Fleet management, configuration drift control, disaster recovery exercises

Job roles that use it

  • Telecom cloud engineer / NFV engineer
  • Network cloud architect
  • Platform engineer (edge/Kubernetes)
  • DevOps engineer supporting telecom network services
  • SRE for network function platforms
  • Security engineer for network/service infrastructure

Certification path (if available)

There is not a universally recognized “Azure Network Function Manager certification.” A practical path is: – Azure fundamentals certification track (AZ-900) – Azure administrator/architect tracks (AZ-104, AZ-305) – Kubernetes certifications (CKA/CKAD) if operating CNFs – Security certifications aligned to your org’s needs

Always verify the latest Microsoft certification catalog: https://learn.microsoft.com/credentials/

Project ideas for practice

  1. Build a “network function inventory” dashboard using Azure Resource Graph + Activity Logs.
  2. Implement RBAC separation-of-duties for onboarding vs deployment.
  3. Create an end-to-end secure artifact pipeline (scan → approve → deploy).
  4. Design a staged rollout strategy for a Kubernetes-based gateway CNF with automated validation.
  5. Create a cost model and tagging policy for multi-site NF deployments.

22. Glossary

  • Network Function (NF): Software that provides network capabilities (routing, firewalling, packet processing, telecom functions).
  • VNF (Virtual Network Function): NF packaged to run on virtual machines.
  • CNF (Cloud-Native Network Function): NF designed for cloud-native platforms, commonly Kubernetes.
  • Control plane: Management layer that defines, orchestrates, and monitors deployments (not the packet forwarding path).
  • Data plane: The runtime layer where packets are processed.
  • Onboarding: Bringing an NF package/definition into a managed catalog with metadata and versioning.
  • Site: A logical representation of a target deployment environment (edge location, region, cluster).
  • Azure RBAC: Role-based access control for Azure resources.
  • Azure Policy: Governance service enforcing rules (tags, allowed regions, configurations).
  • Activity Log: Azure log of subscription-level and resource management operations.
  • Log Analytics: Azure service for collecting and querying logs (part of Azure Monitor).
  • Artifact: Deployable component such as a container image, VM image, Helm chart, or configuration bundle.
  • Supply chain security: Practices to ensure artifacts are trusted (scanning, signing, provenance).

23. Summary

Azure Network Function Manager (Azure, Networking category) is a specialized Azure control-plane approach for onboarding, deploying, and operating network functions (VNFs/CNFs) across supported Azure and hybrid/edge environments. It matters when you need repeatable multi-site lifecycle management with Azure-native governance, RBAC, and auditing—particularly in telecom and edge scenarios.

Cost is typically driven less by the manager itself and more by compute, networking, and observability (Log Analytics ingestion/retention), plus any vendor licensing for network functions. Security success depends on strict RBAC separation-of-duties, secure artifact pipelines, private networking where possible, and strong audit/logging practices.

Use Azure Network Function Manager when you are operating distributed network functions at scale and need centralized lifecycle control. If you only need general Azure networking or you lack supported platforms/vendors/regions, consider alternatives like AKS + GitOps or VM automation.

Next step: confirm current availability and exact resource provider mapping in official Microsoft documentation, then expand the hands-on lab into an end-to-end onboarding and deployment exercise using your supported network function package and target site.