Several years ago, NetFlow was arguably one of the most underutilized management assets relevant to network performance and security. It was generally available as a part of Cisco IOS software ...

Netflow 9 is still not supported on a lot of tools so 5 is safer for compatibility. I haven't run it on anything where logical/virtual interfaces were interesting for netflow exporting.

We configured it to export NetFlow 9 via Flexible NetFlow. The process to set this up is similar to setting up NetFlow on the Nexus 7000. The steps to configure Flexible NetFlow are: ...

Read this whitepaper for a detailed discussion of netflow and security. In a recent interview with Amrit Williams the CTO of Lancope, he highlighted many of the uses of flow analytics for security.

Mimecast has decommissioned its SolarWinds Orion software and replaced it with a Cisco NetFlow monitoring system after hackers compromised a Mimecast certificate used for Microsoft authentication.

I'd like to have a better understanding of how my network is performing in real-time and also historically (day, week, month, and year). Currently I launch Cisco ASDM and keep it running on a ...

Leaders at the Tor Project call for calm after an academic paper spells out how funded hackers could use NetFlow data from Cisco routers to de-anonymize Tor users.

PROC NETFLOW solves network problems that can have side constraints. Certain algebraic features of networks are exploited by a specialized version of the Simplex method so that solution times are ...