Network Management

NPM Licensing

This article describes the different NPM license tiers.

First published date

10/24/2018 5:10 PM

Last published date

4/22/2025 5:23 PM

Overview

This article provides information on the NPM License tiers and how they are applied.

Product section

Network Performance Monitor

Resolution

Licensing Scheme

NPM is licensed by the largest number of the following element types:

Nodes: include entire devices (routers, switches, servers, APs)
Interfaces: include switch ports, physical/virtual interfaces, VLANs, port-channel interfaces. Interface count is usually the largest.
- Note: unmanaged interfaces still consume a license. To prevent interfaces from consuming a license, remove them from monitoring via List Resources.
Volumes: are equal to the logical disks you monitor

Example:

An Orion NPM SL2000 can monitor up to:

2000 interfaces + up to 2000 nodes + up to 2000 volumes.
- NPM Upgrades must ensure matching NTA upgrade licenses are included as well.

Licensing Tiers

LICENSE TIER	NODE LIMIT	VOLUME LIMIT	INTERFACE LIMIT
SL100	100	100	100
SL 250	250	250	250
SL 500	500	500	500
SL 2000	2000	2000	2000
SLX	Unlimited*	Unlimited*	Unlimited*

*With the default polling interval, one polling engine can monitor a maximum of 12,000 elements. To monitor over 12,000 elements, use additional polling engines (APEs) . Each APE requires a license.

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