The level or knowledge or even awareness of netflow is a mixed bag, in my experiences speaking with IT managers and network engineers. Those who have attended accredited courses for network equipment or those networking veterans will be very familiar with the technology. For others, it is a new and exciting technology which can reveal a vast wealth of insight into network traffic.
These days it seems that it is almost impossible to find an organisation who is not either using cloud infrastructure services, such as AWS (Amazon Web Services) or Microsoft Azure, or at least experimenting with them. The benefits are attractive, lower operating costs, better resilience and rapid deployment times are just a few.
Whether it be SNMP traps or community strings, there is a very good chance you have heard of this veteran network monitoring protocol at some point in your career. With well over twenty years of existence, the simple network monitoring protocol has provided us with just that, basic insight into the health of network devices, servers and software.
Network monitoring software and solutions are nothing new, starting their humble beginnings with SNMP (Simple Network Monitoring Protocol) in the 1980s. Since then things have progressed to include easier to use protocols for monitoring such as WMI and syslog; as well as SNMP being upgraded to include authentication in version 3.