SNMP support in Cacti

Simple Network Management Protocol (SNMP) is an application layer protocol, which processes the exchange of management information between devices. It is a part of the transmission control protocol suite (TCP/IP). SNMP helps the network administrator to manage network performance, find and solve network problems, and plan for network growth. Three versions of SNMP exist: SNMP version 1 (SNMPv1), SNMP version 2 (SNMPv2c), and SNMP version 3 (SNMPv3). How SNMP will work with your Cacti installation depends on which version you choose. Version 1 is limited on most devices, and should be avoided unless you have no other option. If you want access to greater resources (for example, implement high-speed counter (64bits)) then you can choose version 2. For secure and authenticated implementation, you can choose SNMPv3. Cacti has implemented version 3 fully from 0.8.7 version onwards. The Cacti Group recommends version 2c for ease of use and general support.

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