sFlow Myths : sFlow is really sPacket

Posted in NetFlow, Netflow Detective, sFlow on March 21st, 2011 by Jimmyd
sFlow Myths : sFlow is really sPacket

First of all, I’m a fan of sFlow, NetFlow, IPFIX, NetStream, JFlow, etc. I like them all.  In this blog I would like to point something out that a customer made clear to me about sFlow.

IPFIX, NetStream, JFlow are all ‘NetFlow’ like technologies. These NetFlow technologies are truly ‘flow’ based.  On the other hand, sFlow is not.  It is a packet sampling technology. It has BIG benefits;  however, the benefits are very different from a flow-based protocol such as NetFlow and IPFIX. Lets take a look at the definition of a flow.

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Jimmy D the Netflow Detective

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Cisco Live 2011 in London

Posted in NetFlow, NetFlow Analyzer, Netflow Billing, Scrutinizer on February 2nd, 2011 by Jimmyd
Cisco Live 2011 in London

The first day of Cisco Live Europe 2011 is going well. If you want to check out the new features in our Flexible NetFlow reporting tool, you’ll find us in booth E9, right next to the Cisco store.

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Jimmy D the Netflow Detective

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sFlow Billing Vs. NetFlow Billing

Posted in NetFlow, Netflow Billing, Network Traffic Analysis, Scrutinizer, sFlow, sFlow Billing on December 4th, 2010 by Jimmyd
sFlow Billing Vs. NetFlow Billing

Q: Can you perform billing with sFlowsamples?

A: Yes, depending on how you need to invoice.

Being a vendor that supports NetFlow and sFlow reporting, we deal with lots of flow questions.  Most recently, I was dealing with a customer that was trying to figure out how to do billing with sFlow.  Depending on how you want to invoice, sFlow may or may not be appropriate.  This document from Inmon sums it up nicely by saying, “sampling does not provide a 100% accurate result.”  The document goes on to state, “but it does provide a result in which the error can be accurately characterized.” Which is really a fancy way of saying that sampling allows you to be ‘fairly’ accurate.

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Jimmy D the Netflow Detective

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NetFlow Europe: A visit with Plixer’s UK Reseller Teneo

Posted in exchange log analyzer, IT News, NetFlow, NetFlow Analyzer, Scrutinizer on October 21st, 2010 by Jimmyd
NetFlow Europe: A visit with Plixer's UK Reseller Teneo

While attending CeBit in Germany last March, I was able to meet our German reseller, TCC Gmbh, as well as our Nordic reseller, Plan Two. These types of meetings are important for two reasons. The first is being able to put a face with a name. Knowing who you are talking to and being able to associate that person with a physical meeting can go a long way in helping that relationship grow. The second is market understanding. In the international arena, having strong resellers who understand their client’s needs, as well as their country’s laws and regulations is necessary. It is the only way you can ensure growth in that country.Netflow, europe

This month, I had the privilege of meeting with our largest UK reseller, Teneo.

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Jimmy D the Netflow Detective

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sFlow, Scrutinizer and the search for a Time Lord

Posted in Scrutinizer, sFlow on October 11th, 2010 by Jimmyd
sFlow, Scrutinizer and the search for a Time Lord

Jimmy DIt was my last free day in London and I bumped into one of our favorite Time Lord’s worst enemies. Trust me, I would have much rather spent the day having fun, running around London, but this was serious!

With the words “Exterminate, Exterminate” ringing in my ear, I decided that the only way to save the human race was to find The Doctor. London is a big city and a bit foreign to me. I needed to find him and fast. I first stopped at Starbucks. A quick double espresso with an extra shot was what I needed. It could be the end of the world, no time to mess with tea.

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Jimmy D the Netflow Detective

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