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.

Global Crossing plans to use NetFlow 9 to create customized billing models rather than to monitor IPv6, which represents only 0.1 percent of its traffic in Europe.

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 ...