NetCrunch Licensing
NetCrunch licensing is node-based and allows monitoring of switch port interfaces, with a maximum of nodes.
Node License NetCrunch licensing is based on the number of nodes, but we also count monitored interfaces. If the number of monitored interfaces exceeds the number of nodes, additional interface licenses are required for the excess interfaces.
For instance, with a license for 500 nodes, you can monitor 500 nodes and 500 interfaces. If you want to monitor 500 nodes and 700 interfaces, you'll need 500 node licenses and an additional 200 interface licenses for the excess.
If you do not monitor switches, you only look for the total number of monitored nodes (devices). In other cases, if you want to monitor layer 2 connections on your switches, you need a license covering the total number of switch ports you wish to monitor, which exceeds the total number of switches.
Additive
NetCrunch licenses are additive. This means, for example, that if you purchase a 100-node/interface license and later decide to get a 50-node/interface license, you will have a total of 150 nodes/interfaces. You can purchase an additional node pack at any time and add it to your NetCrunch - no need to reinstall or restart the software; you just need to refresh the license.
Interface Monitoring
By default, interface monitoring is enabled only on SNMP devices. However, interface monitoring can be enabled on all monitored nodes if desired. Interface monitoring can be adjusted on a per-node basis within NetCrunch preferences.
By default, only All Active type interfaces are monitored. 'Other' or 'Loopback' type interfaces do not count toward license size unless you manually adjust the monitoring schema.
It's possible to create an interface-monitoring schema that includes only interfaces that match the filter you need.
To change the default schema or create additional schemas, go to (hamburger menu)Settings Monitoring Interface Monitoring Settings