In a previous post I gave a rundown of various software tools for collecting NetFlow data for use in network security incident response. NetFlow is pervasive in routers but another technology, sFlow, is nearly as prevalent in routers and can be collected from switches — an arena that NetFlow does not play in very much as of yet. sFlow is a packet sampling technology and can provide a depth of network visibility — a key component of network forensic and incident response — even beyond what NetFlow can offer. For more information on sFlow check out sflow.org.
clipped from www.breachbytes.com
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