add sflow integration

[arlake228]

From @arlake228 on March 14, 2015 11:59

Original issue 840 created by arlake228 on 2014-02-11T16:32:21.000Z:

Request from a user:

It occurred to me that the new sFlow-APPLICATION export might be another way for an OWAMP probe to contribute measurements into the "bigger picture", so that end-to-end delay/loss statistics could be correlated with measured traffic-counters and traffic-flows at all points along the tested path.

If an OWAMP probe were able to submit transaction-samples that included at least these fields...

clientIP
serverIP
delay
jitter

...then it would map easily into the sFlow-APPLICATION message structure.

The easiest way to do it would be to send a JSON structure in a UDP packet localhost:36343, where hsflowd is listening. hsflowd will then turn that into a valid binary sFlow feed. Here is an article on the mechanism:

http://blog.sflow.com/2012/05/scripting-languages.html

Copied from original issue: perfsonar/project#838

[arlake228]

Comment #1 originally posted by arlake228 on 2014-03-21T21:50:05.000Z:

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