This is part 3 of a 3 part series. Part 1 and part 2 covered other topics. In the third NetFlow lab we studied the traffic from a VoIP connection.
Michael PattersonThis is part 2 of a 3 part series. Part 1 can be found here. In the second NetFlow lab we did a HTTP Comparison using my web browser and going to a common web site. I wanted to see what kind of traffic occured when I visited the front page of llbean.com without clicking on anything. How many packets were transfered and how many flows were created?
Michael PattersonIntroduction
I spent some time ago comparing packet traces to Cisco NetFlow using our network bandwidth monitoring tool ‘Scrutinizer’. I setup 3 scenarios where I captured the actual packets with Wireshark and captured the NetFlow datagrams with our NetFlow collector. In this 3 part series, the details from these three labs will be explained:
I think I’ve explained this enough times to justify a blog. :) The topic of TCP Flags and NetFlow has come up a few times in technical discussions regarding NetFlow collection and analysis. Read more »
Michael PattersonIs cloud computing right for your business? Will it save your company money? Gartner Inc. predicts that by 2012, 80 percent of Fortune 1000 enterprises will pay for some cloud computing service, while 30 percent of them will pay for cloud computing infrastructure. Inevitably your company will eventually consider cloud services for one or more of the business applications it depends on. Ask yourself:
Michael PattersonWe are still recovering from CiscoLIVE 2010. We have lots of leads to pour through as well as a few new potential business partners to work with. One of our long distance partners dropped by our booth to say ‘hello’ and discuss Scrutinizer v8.
We work with the Cisco Japan team from time to time regarding NBAR and Flexible NetFlow . Here I am standing with the Manager of Solutions Systems Engineering and a Senior Systems Engineer. Read more »
Michael PattersonA couple of years ago we were in the market for a new switch. A NetFlow capable Cisco switch would have been nice, but we didn’t want to spend that kind of money on a test environment. A customer told us about the Nortel switch exporting IPFIX and we got pretty excited. After a fair amount of investigation, we figured out that we would have to pay a bit more for the router license key which enabled the NetFlow/IPFIX. We didn’t mind the additional cost as the price was palatable.
Just when we were ready to pull the trigger we decided to ask about the IPFIX support. We wanted to confirm that it does 100% sampling as we wanted to replace our sFlow switch which only does packet sampling. “Can I get it in writing” saved us from making a mistake. Read more »
Michael PattersonCiscoLIVE is a huge success and the biggest event ever for Cisco and our booth. Look at these numbers.
I spent last week at SHARKFEST in Palo Alto, California. The folks at Cace Technologies did a great job organizing the event. The kick off presenter was Van Jacobson who was the creator of spiffy utilities like traceroute and tcpdump. Read more »
Michael PattersonBest at NetFlow solutions should provide value way beyond NetFlow Reporting. As a leader in Flexible NetFlow analysis we recognized this need years ago when we put together the architecture for Flow Analytics. Most people use a NetFlow Analyzer to look for problems when someone calls with a connection issue. Read more »
Michael Patterson
