nanog mailing list archives

Re: Real world sflow vs netflow?


From: Nick Hilliard <nick () foobar org>
Date: Tue, 17 Jul 2012 17:37:44 +0100

On 17/07/2012 16:32, Simon Leinen wrote:
That's one reason, but another reason would be that at least in Netflow
(but sFlow may be similar depending on how you use it), the reported
byte counts only include the sizes of the "L3" packets, i.e. starting at
the IP header, while the SNMP interface counters (ifInOctets etc.)
include L2 overhead such as Ethernet frame headers and such.

sflow includes both figures.

Nick




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