Deployment Automation

Nvidia (Mellanox) SN2410: How to deploy with a Python script (paramiko / netmiko / native API)

By Sai Kiran Pandrala · reviewed by Sai Kiran Pandrala, Editor Last verified: 2026-05-30

⚡ At a glance
VendorNvidia (Mellanox)
Operating systemCumulus Linux / NVOS / SONiC
CategoryDeployment Automation
Skill levelIntermediate to advanced
DIY-able?Yes with CLI access; some scenarios need Nvidia Enterprise Support + RMA.

Anyone who has automated a real Nvidia (Mellanox) fleet will tell you the same three lessons: capture cl-support (Cumulus) / show techsupport (SONiC) on every run, version-control the rendered configs, and never push without a dry-run. Cumulus Linux / NVOS / SONiC on the SN2410 platform supports all three.

I keep a small library of vendor-specific quirks per platform. Nvidia (Mellanox) is consistent enough that most code ports cleanly, but the nv config save semantics differ from what people coming from other vendors expect.

The rest of this guide is the actual workflow, credentials, render, validate, push, verify. Bring your own secret store.

What this guide covers

How to deploy with a Python script (paramiko / netmiko / native API) for Nvidia (Mellanox) SN2410 (Cumulus Linux / NVOS / SONiC).

Step-by-step

  1. Choose the automation surface: vendor controller, API, or CLI scripting.
  2. Verify reachability + credentials from your automation host.
  3. Test the change on a single device + maintenance window.
  4. Roll out in waves of 10-20 devices to limit blast radius.
  5. Pre-collect baseline, push the change, post-collect; diff.
  6. Roll back any device whose post-check fails.

Sample CLI invocation

# Manual baseline
nv show system
nv show platform inventory
nv show interface

# Push change (via vendor CLI)
nv config (NVUE)
nv set interface swp1 ip address 10.0.0.1/24
nv config apply
nv config save

# Verify
nv show interface

Best practices

Frequently asked questions

Will this work on my specific Cumulus Linux / NVOS / SONiC version?

The procedure reflects current Cumulus Linux / NVOS / SONiC behaviour. Older releases may need minor syntax adjustments. use the CLI help (? or tab-completion) to verify.

Should I open a Nvidia Enterprise Support case immediately?

Open one if you suspect hardware failure or the symptom persists after a maintenance-window reload. Make sure your support entitlement is active first.

Where can I find the Nvidia (Mellanox) official documentation?

https://docs.nvidia.com/networking/, search the product family + feature name.

Is this procedure safe in production?

Test in a lab or maintenance window first. Capture pre-change state so you can roll back.

Related guides worth a look while you sort this one out:

References


Reference material, not professional advice. Validate against your specific Cumulus Linux / NVOS / SONiC version and test in a non-production environment before applying.

What changed recently?

Fault diagnosis on a Nvidia device goes faster when you map the symptom to a recent change:

The answer narrows the root cause to a manageable subset.

Before you start

A few things to confirm so the Nvidia device fix goes cleanly:

How to confirm it's actually fixed

On a Nvidia device, the test is rarely "reboot and see". Use this list:

When to call Nvidia support instead

Escalate if:

More frequently asked questions

Will this void my warranty?

Applying official firmware updates and following the user manual will not affect warranty. Opening sealed components, jumping safety circuits, or using third-party parts can void warranty in most jurisdictions.

Should I update firmware first or last?

Update firmware first if a release note specifically mentions your symptom. Otherwise, finish the troubleshooting flow first, then update; that way you can isolate whether the update or the underlying fix solved it.

What if the fix returns after a reboot?

Persistent fault returns mean either: a hardware fault (escalate), a configuration that's being overwritten by a sync source (check cloud profiles), or a regression in a recent firmware update (rollback).

Can I roll this back if something breaks?

Yes for software-level changes (firmware rollback, config rollback). Hardware changes are usually one-way. Always back up settings before starting.

Does this affect other devices on my network?

Generally no. The procedure is local to this device. Network-side changes (firmware updates that affect TLS, SMB, or routing) are flagged explicitly in the steps.