Extend ServiceNow Discovery to Any Network Device—Custom or Standard

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Extend ServiceNow Discovery to Any Network Device—Custom or Standard

Out-of-the-box discovery works great—until you need to find a device that isn't covered. Maybe it's a vendor-specific model in CSDM that ServiceNow just hasn't built a pattern for. Maybe it's a custom appliance your team built. Either way, you're stuck.

This guide solves that. It's a step-by-step playbook for teaching ServiceNow Discovery to recognize and classify any network device—whether it's a standard CSDM class without a discovery pattern, or a completely custom CI type you've created.

What you'll learn:

• How to register device identifiers (OIDs) so Discovery can spot your gear via SNMP
• Creating discovery patterns that extract the right data from any device type
• Building the supporting CI types and relationships that keep your CMDB clean
• Wiring it all together—from classifiers to probes to pattern logic

Who needs this:

TSOM practitioners, discovery engineers, and anyone managing heterogeneous networks where ServiceNow's standard patterns don't cover all the devices in your environment—whether those devices are standard CSDM classes or custom CI types.

The guide walks you through a real example—onboarding a Fortinet firewall—but the approach scales to any device. You'll end up with a repeatable pattern you can clone for the next uncovered device (standard or custom) that lands in your environment.

Ready to extend your discovery? Dive into the guide below.