Wondering what others in the small to medium sized networks out there are using these days for netflow data collection, and your opinion on the tool?
a question not asked, and answer not provided here, is:
"What are you actually trying to do with the netflow?"
Answers of the form:
"Dos detection and mitigation planning"
"Discover peering options/opportunities"
"billing customers"
"traffic analysis for future network planning"
"abuse monitoring/management/investigations"
"pretty noc graphs"
are helpful.. I'm sure other answers would as well.. but: "how do you collect?" is "with a collector" and isn't super helpful if the collector can't feed into the tooling / infrastructure / long-term goal you have.