SUNY Geneseo Network Manager Rick Coloccia found that analyzing Cisco NetFlow packets was the key to network traffic management and monitoring internet use and abuse.

Using Scrutinizer NetFlow Analyzer, he was able to respond to the RIAA’s (Recording Industry Association of America) allegations of students illegally downloading or sharing of music.
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The following article, “Scrutinizer Brings Flow Analytics to SMBs“, written by David Diaz, was recently featured on TechCrunchIT.

David points out that with the low initial cost for Scrutinizer NetFlow & sFlow Analyzer, it is a very affordable Flow Analytics solution for small and medium-sized businesses.

This flow analysis tool can also be deployed centrally and accessed globally via the web interface.  What this means is that one install of Scrutinizer can provide network management information for your entire network and accessible by everyone on the network management team, regardless of geographical location.

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Thinking outside of the box can produce some innovative ideas.

While the network maps in Scrutinizer can make the traffic flow on your network easier to visualize and congested links quicker to spot, adding more visual definition to your maps will make them more user friendly and understandable by more members of your organization.

So how do you spice up your NetFlow data and breathe some life into your network utilization maps? Try combining a tool created for home design with a network monitoring tool to create incredible network maps.

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If you put a price tag on network monitoring for your organization, what would it be? $10,000? $100,000? $1,000,000?

And what needs to be included in that price? Staff to support the network? Network Monitoring hardware and software? Office space to house the staff and equipment?
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Since Scrutinizer v7 and the data migration from v6 has been released, we have been just out straight with support, including sending upgrading instructions, assisting with upgrades, helping customers get acclimated to the totally new interface, and troubleshooting the inevitable issues that arise with a new release of code.

So it was with great relief and gratitude to Michael Patterson, President and CEO, and Marc Bilodeau, CIO, that we enjoyed our Christmas company celebration this past Saturday.
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With the release of the Scrutinizer v7.3.1 updates, we have made available the ability to link back to devices in Scrutinizer from 3rd party applications such as Zenoss, WhatsUp Gold, and InterMapper, among others.
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Expanding your network management options just got more affordable!

Through the Zenoss & Plixer partnership, the Scrutinizer ZenPack for integrating Scrutinizer NetFlow & sFlow Analyzer is now available.

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If you are running Scrutinizer v7.01, the Cisco ASA interfaces don’t show up in the Status tab yet. It was a philosophical decision. Here’s why:

The ASA running v8.2.1 exports bidirectional NetFlow!  This is unlike anything else we’ve seen.  In nearly all NetFlow exports v5, v9, IPFIX etc. flows are exported in one direction (i.e. A -> B and then a separate flow for B -> A).   This is true for ingress or egress NetFlow. For Example: lets say A -> B creates a flow of 200KB.  Then in return:  B -> A causes a 2nd flow of 40KB. Well, the developers of the ASA decided to be unique and add the two flows together and export A -> B 240KB!!!!  The two added to each other is called a bidirectional flow.

Because of this, when we calculate the percent utilization using NetFlow (i.e. not SNMP) by adding the total flows together we overstate InBound/OutBound utilization in the Status tab. We are talking with Cisco about this unconventional export method. We have no definitive news yet.

NOTE: The ASA also doesn’t support an Active Timeout causing huge spikes in the graphs and thus making network traffic analysis kind of tricky when traffic that occurred over several minutes shows up in a single minute!

If you are seeing some screwy results with ASA and NSEL, the above is why. Anyway, everyone can blame Mike for not sticking the data in the Status tab!

Here is a pic of our  ASA:

Need help configuring NetFlow export from the ASA?  You can also setup NetFlow exports up using Cisco ASDM. Make sure you have watched the Cisco ASA and NetFlow training video.

____________________________________
Jim Dougherty aka "Jimmy D"
Lead PreSales Support Engineer and
Netflow Evangelist for Plixer International!

Follow me on Twitter
http://twitter.com/jimmydnet
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Need to find a certain host IP or application on your network? Do you have a user on your network who is violating network policies and you need to provide proof of that to management? Or do you suspect someone is using an application not allowed on your network? Using the searching utility in this network traffic analyzer, you can quickly find the offender, and more.
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To celebrate the release of Version 7.0 of Scrutinizer NetFlow and sFlow Analyzer, which is absolutely free, I thought I’d share with you three fabulous free resources for Cisco network administrators. Read more »