The other day a customer called in asking about Ericsson SmartEdge NetFlow support; I had never heard of it.  I opened another browser tab and started searching on Ericsson NetFlow Support.  I found that back in July of 2009, Glen Hunt of Current Analysis did a study comparing the Ericsson NetFlow switch to Cisco, Juniper and other vendors.
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What is the preferred Cisco NetFlow Port Number to listen on?  Well, it depends.  The NetFlow RFC 3954 does not specify a specific NetFlow listening port, however, in my experience 2055 and 9995 or 9996 are the most popular.  Fortunately, our NetFlow solution, by default, will listen for any NetFlow/sFlow traffic sent to it on UDP ports 2055, 2056, 4432, 4739, 9995, 9996, and 6343.

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Many B2B communications especially when connecting outside of the country are done with Skype? How are companies monitoring the quality of Skype connections?  You might be thinking to yourself “companies don’t because the connection involves the internet and the quality is out of their control”.   This is of course a good point however, wouldn’t you like to know:

• the volume of Skype connections
• who is using it the most
• when and how is the quality when they use it

Does the time of day or location they are trying to reach matter?

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Network Performance Analysis in a virtualized environment like VMware can be a tricky beast as often times everything is encapsulated using GRE tunnels between virtual switches.  What can we do? As luck would have it, most virtual switches support Netflow. Yes, vSphere NetFlow support is available. Read more »

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We have 5 remote sites all using VoIP to access the company Asterisk PBX.  We monitor the health (e.g. Jitter, Packet loss, etc.) of their VoIP connections by reporting on the Cisco Performance Monitoring Flexible NetFlow exports.  We really appreciate the insight that this new Cisco Medianet technology provides.

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Plixer International announced today that Network Products Guide, the industry’s leading technology research and advisory guide, has named Scrutinizer NetFlow and sFlow Analyzer a winner of the 6th Annual 2011 Hot Companies and Best Products Awards in the IT Software and Services (New or Upgrade version) category.

These industry and peer awards from Network Products Guide are the world’s premier information technology awards honoring achievements and recognitions in every facet of the IT industry. Winners from all over the world were honored in Las Vegas on Tuesday, May 10, 2011 during the 6th annual dinner and presentations.

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What a week! I flew down to Cisco’s Research Triangle Park campus in North Carolina for Interoperability and Validation Testing of Scrutinizer with Cisco Performance Monitoring. The entire process took all day as one of their CCIEs tested the validity of Scrutinizer’s reports on their NetFlow exports.  Check it out, we were the first vendor to become a Cisco Registered Developer for Systems Management of Medianet 2.0.

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