Until the introduction of flow technologies like NetFlow and the standard called IPFIX, companies relied largely on two technologies. The first was SNMP which allowed customers to trend different performance metrics for long periods of time. Metrics included interface utilization, interface errors, CPU, memory and much more. The problem with SNMP however, is that it couldn’t provide details on who and what was causing the traffic, making it nearly useless for isolating network performance problems and investigating security issues. An extension to SNMP called RMON was incorporated into SNMP but, it failed for several reasons.Michael Patterson
Founder and CEO
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