As network complexity has grown, network monitoring methods have evolved. Originally, network monitoring for most companies simply meant making sure the connections were live. A utility would regularly ping all of the critical devices on the network, and if one didn’t respond, it sent out a notification. In the early 90s, these utilities started generating synthetic transactions to ensure, not only that there was a connection, and that the actual application was running. This enabled the generation of response time and availability reports. Now, most network monitoring applications are even providing SNMP (Simple Network Management Protocol) trends.
Below, network performance measuring vendor – Plixer International, gives the Cisco Subnet its How-To Tutorial on guaranteeing QOS with network traffic: “As timely transmission of data across the network becomes increasingly important, so too does the science of QoS. How do we know for sure that millisecond sensitive packets are getting the priority we want them to receive as they traverse the IT infrastructure?” Cisco DiffServ to the rescue?
Network performance measuring vendor – Plixer International, released this evening its new rap video featuring the geeky but highly talented Cisco NetFlow hip-hop rap sensation – Mix Master Mitch: Cisco Catalyst 6509 NetFlow Rap
I’ve wanted to blog about this for awhile ever since a customer approached me with the issue at Cisco Networkers. I’ve pieced together the issue based on information I have collected over time from customers. Below I outline how I compared NetFlow Reports to that status of the TCAM tables on a Cisco Catalyst 6513. Some feedback from a knowledgeable reader would be fantastic. I think this is an important topic.
Plixer International President and CEO – Michael Patterson took time out this week to assemble the following “How-to” tutorial on configuring Cisco Flexible NetFlow for NBAR exports: “Cisco released in October 2009 an amazing new feature that ties together Cisco’s NetFlow technology with NBAR (Network Based Application Recognition).
Today I added a new NetFlow and sFlow tool to my extensive collection of free Cisco tools. “Flowalyzer is a free NetFlow & sFlow tool kit for testing NetFlow collectors and exporters used to troubleshoot hardware from vendors like Cisco and Enterasys, as well as Plixer’s Cisco NetFlow collector software, to assure that whichever flow technology deployed is configured properly on both ends,” said Plixer International cofounder and Chief Technology Officer – Marc Bilodeau. Bilodeau added, “Flowalyzer came about out of necessity during the development process of Scrutinizer v7.” (Readers may recall that Scrutinizer v7 was featured last week in my Q & A blog about exporting NetFlow from the Cisco ASA Firewall).
Plixer International is one of the fastest growing network performance measuring companies in the industry. Merged with Somix Technologies, Inc. in 2006 and founded in 1999, the team at Plixer works on many of the largest networks in the world. Many companies still spend the majority of their time focusing on reactive issues and individual equipment problems. Plixer solutions provide a holistic view of the entire enterprise regardless of equipment vendor.
Due to the untraditional export of NetFlow from the Cisco ASA firewall, network traffic analysis vendors to date have shied away from figuring out this enigma. Nonetheless, network traffic analysis vendor Plixer International decided to tackle it and announced this week support for NetFlow exported from the ASA in Plixer’s latest traffic analysis software release, Scrutinizer v7. Naturally, there’s a catch to Plixer’s new release. So what’s the catch? It’s free Hopefully, in the following Q & A session with Plixer CEO Michael Patterson, you will learn how this new strategy could potentially help Plixer’s business: