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Aruba Data Center Professional study materials
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Aruba Data Center Professional: Automation, Orchestration, and Infrastructure as Code

Aruba Data Center Professional · Work through your exam, one topic at a time.

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Automation, Orchestration, and Infrastructure as Code

Three ways to reach AOS-CX

Every AOS-CX switch exposes the same intent through a CLI, a REST API, and SNMP or streaming telemetry. The REST API is the foundation: authenticate, obtain a session cookie or token, then GET/POST/PUT against versioned URIs. Automation tooling sits on top - Ansible collections, Python SDKs, NetEdit for guided multi-switch changes, Aruba Fabric Composer for EVPN/VXLAN and fabric-wide workflows, and Aruba Central for cloud management and templating.

Orchestration and IaC discipline

  • Declarative over imperative: describe the desired state and let the tool reconcile; make tasks idempotent so a second run changes nothing.
  • Version everything in Git; treat device configuration as code with peer review.
  • Take a checkpoint before bulk changes and validate with post-change checks.
  • Zero-touch provisioning: DHCP options point a new switch at its controller or image, it boots, checks in, receives a template, and is validated.
  • Streaming telemetry (gNMI) and NAE scripts turn the fabric into a data source for the pipeline.

Traps

  • Assuming a REST call is atomic - a partially applied change leaves the device in a state nobody tested.
  • Hard-coded credentials instead of a secrets store, and ignoring API session/rate limits.
  • Believing a CLI no command maps one-to-one onto a REST DELETE; check the endpoint.
  • Re-running a playbook against changed inventory without diffing first.
  • Automating a broken process faster.

Rule of thumb

Write the verification before the change: one command whose output proves the desired state (for example, a show command you can parse for the expected VNI-to-VLAN mapping). If you cannot state the check, do not automate the change.