Catalyst 6509 NetFlow support is essential, especially when the switch is set up as a core network device; this blog should help you get started with NetFlow traffic monitoring on 6500 series switches.

Enabling NetFlow on a 6509 is slightly different from the traditional IOS NetFlow setup. Here you need to keep in mind that NetFlow on the MSFC is collected in software, and on the PFC it is collected in hardware.  Beside the familiar IOS NetFlow commands,  Cisco 6509 NetFlow also requires enabling NDE in order to export flow statistics to the collector. Read more »

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Palo Alto Networks NetFlow support is now available and with the latest version of our NetFlow monitoring solution you can get NAT and also application reporting for this firewall.

Today I’ll be providing step by step instructions on how to configure NetFlow for this device, and also show an example of the extended NetFlow reporting available.

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Joanne Ghidoni
Sr. Solutions Engineer

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System requirements for a NetFlow collector are a lot higher than the average program. While I am still the “new guy” in support I am already seeing some trends here at Plixer. The majority of cases I have been working with involve servers that seem to run slow despite being on top of the line equipment. Nearly every time this issue comes up it is caused by an improper hard disk configuration.

One of the most overlooked NetFlow Collector System Requirements that write heavy database servers have is disk IOPS (Input/output Operations per Second). You have to remember that a spinning disk is very limited on how many writes it can make at any given time, and if the collector cannot write to the disk fast enough it can cause a lot of problems.  This has been the root cause of a lot of slow NetFlow collectors.

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Jimmy Wendler

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Are you wishing you had a ‘NetFlow for Dummies’ book to help you figure out how to configure NetFlow on your corporate network? If the answer is “yes” I have some great news… you can save your money.

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Matt

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What do network performance analysis and snowmobiling have in common?

Nothing, unless you are attending FlowFest™ 2012.

 

 

You know about NetFlow. But do you need to know more? Do you need to get a NetFlow solution in place? Could you better serve your company with advanced knowledge of NetFlow from the industry leader in NetFlow collecting and reporting?

FlowFest™ 2012 – Advanced NetFlow Training™ course, is a 2-day conference to learn what is possible with the NetFlow technology.

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Scott Robertson
Sr. Solutions Engineer

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has been improved in some of the latest VC 6.x releases. I worked on a NetFlow reporting issue with a VC 6.0 user in the past trying to figure out why his NetFlow Analyzer was not showing the expected amount of traffic. We used Wireshark and found that a large number of flow packets were being exported without flow data, therefore were useless and discarded by the collector. Since he upgraded to VC 6.2, he was able to see all his traffic.Vyatta now supports MAC addresses, as seen in the image below! Read more »

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The Cisco Catalyst 4500E is one of the latest kids on the block, so the age old question in our world is, “How do you configure NetFlow on this?”
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Joanne Ghidoni
Sr. Solutions Engineer

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You are an IT professional.  You know about NetFlow.  But do you need to know more?  Do you need to get a NetFlow solution in place?  Could you better serve your company with advanced knowledge of NetFlow from the industry leader in NetFlow collecting and reporting?  Do you want to get your hands on some fresh Maine lobster?

Then check out our upcoming FlowFest™ 2011: Advanced NetFlow Training™, a 3-day conference to learn what is possible with NetFlow technology.  Read more »

In this day of companies downsizing and more employees working from home to cut office space costs, voice and video traffic over the internet is becoming more prevalent and also critical that it the quality is reliable.

We have several employees who work out of their homes and in an effort to maintain acceptable voice quality, we have configured QoS on their routers.

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Joanne Ghidoni
Sr. Solutions Engineer

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Sign up for Advanced NetFlow Training™ coming to a city near you!

Are you interested in learning more about Cisco NetFlow collection?  We have two upcoming webinars available.  Each webcast will cover a variety of topics to get you the information you need.

We’ll discuss reporting on Top Domains to find out who is hitting them (such as MySpace, Ebay, and others).  Learn how to use NetFlow to pinpoint latency of applications, servers, and end systems.  Discuss what open source NetFlow software is appropriate for your business, or when to move from open source to an enterprise class NetFlow Analysis Solution. Read more »