On Mon, 2011-04-11 at 15:50 -0500, Gary Gatten wrote:
> I may have to read through this thread again, I'm confused.  To my
>  knowledge snmp and/or rmon is the only way to get interface
>  "counters".  Netflow, sflow, etc give you flow/conversation details.

It may help to think of sFlow as "Shimmer" - it is both a floor wax
*and* a dessert topping.  An sflow agent can be configured to send flow
samples (similar to netflow) or counter samples to an sflow collector,
and it does appear that ntop can receive and do something useful with
sflow counter samples.

The Very Nice Thing about an sFlow counter sample is one gets all the
counters in one shot - so instead of having to query each stat for an
interface one at a time via SNMP, they all "just arrive" together in the
same sFlow PDU.  In fact, multiple counter samples, each from multiple
interfaces, can be carried in the same sflow PDU making it even that
much more efficient than querying via SNMP.

rick


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