Network admins, what’s your holiday season atmosphere ?

Posted in General, NetFlow, NetFlow Analyzer, Network Problem Resolution, Network Traffic Analysis, Network Traffic Monitor, Scrutinizer, Security on December 17th, 2010 by Danny
Network admins, what's your holiday season atmosphere ?
  • For most of you, troubled days are already over, your black list users are on vacation and things are starting to slow down.
  • Other admins are under fire, on one hand trying to catch up with to-dos so that new equipment is approved for next year’s budget.  On the other hand, stuck with a frustrated user who needs their problem taken care of quickly so that they can go catch that flight to a Christmas family reunion.
  • The luckiest are those already on vacation and will be coming back to work next year.

To avoid  network headaches this holiday season: Read more »

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A Quick Intro to NetFlow Monitoring

Posted in ASA, NetFlow, NetFlow Analyzer, Network Traffic Analysis, Network Traffic Monitor, Scrutinizer, sFlow on September 24th, 2010 by Danny
A Quick Intro to NetFlow Monitoring

Today I wanted to give a little introduction to traffic monitoring that uses NetFlow technology; I will be focusing on what is involved in setting up a NetFlow traffic monitoring system. Most of these systems have three major components, the most simplistic would have: a NetFlow exporter, a Netflow collector, and finally a NetFlow analysis software.

RouterA. Exporter: It is any network device with NetFlow exporting capability. An exporter gathers traffic information in UDP packets, and sends them to a server were the traffic information is stored and analyzed. It could be a router, a switch, or a software based routing appliance that can be configured to send NetFlow . If you are using Cisco you might want to check in the following list to see whether your devices are in the series that supports NetFlow. Read more »

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Cisco 4500 series and “ip flow ingress infer-fields”

Posted in NetFlow, NetFlow Analyzer, Network Health Report, Network Problem Resolution, Network Traffic Analysis, Network Traffic Monitor, Scrutinizer, sFlow on July 30th, 2010 by Danny
Cisco 4500 series and “ip flow ingress infer-fields”

Today I will discuss the command “ip flow ingress infer-fields”, mostly used in the NetFlow configuration of NetFlow switches. Being the newest member of the Plixer International Tech Support team I am discovering how amazingly large certain networks can get. This is when an outstanding network monitoring and diagnosis capability come in handy. Read more »

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Cisco routers that support NetFlow

Posted in General, NetFlow on March 5th, 2009 by James
Cisco routers that support NetFlow

Hello NetFlow Gurus! It’s a common inquiry here at the Plixer Help Desk as to which Cisco routers support NetFlow. So for your viewing pleasure, here is a list of Cisco models that can export NetFlow:

IOS 11.CA, 11.1CC

  • 7200, 7500 Series and RSP 7200 Series

IOS 12.0, 12.0T, 12.0S, 12.0(3)T, 12.0(3)S

 

 

  • Cisco 1720, 2600, 3600, 4500, 4700, AS5800
  • RSP 7000, 7200 Series
  • uBR 7200, 7500 series
  • RSM Series, MGX8800RPM Series, BPx8650 Series
  • AS5300 uses IOS 12.0(3)T, 12.0(3)S

IOS 12.0(4)T

  • Cisco 1400, 1600, 1720, 2500, 3600, 4500, 4700, AS5300, AS5800
  • RSP 7000, 7200 Series
  • uBR 7200, 7500 series
  • RSM Series, MGX8800RPM Series, BPx8650 Series

IOS 12.0(4)XE

  • Cisco 7100 Series

IOS 12.0(6)S

  • Cisco 1200 Series

IOS 12.3(1), 12.0(24), 12.2(18),S12.3(2)T

  • Cisco 800, 1700, 2600, 3600, 3700, 6400, 7200, 7500, 12000

These devices support NetFlow as well: Cisco 1800, 2800, 3800, 6500, 7300, 10000 and CRS-1

Catalyst Series Switches: 4500, 5500, 6500.

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