Active SNMP is licensed per number of graphs. This means all graphs created across all users. If your Active SNMP is licensed by a key for 10 licenses, your Active SNMP users can create ten graphs of various SNMP variables. If one of the users wants to create an 11th graph, Active SNMP reports an error. Active SNMP licenses come in the form of a special license key string with the number of licenses included.
Licenses are additive.
Active SNMP will handle. This version is free of charge. It enables you to browse MIBs, use SNMP commands, manage user accounts, create graphs, upload and compile new MIBs etc. To remove any doubt, it means three graphs across all Active SNMP users. Then the number of graphs can theoretically be unlimited.