Product Info - Essential Edition


The recommended hardware requirements for installing and running NetFlow Analyzer are as follows:

Flow Rate
(in flows per second)

Hard-disk Space
Server Type
0 to 3000 2.4 GHz Dual Core Processor 2 GB 250 GB -
3000 to 6000 3.2 GHz Quad Core Processor 4 GB 600 GB -
6000 to 9000 3.2 GHz Quad Core Processor 8 GB

1 TB
(High Speed SATA or SAS Drive)

64 bit

Above 9000

(Raw data disabled)

3.2 GHz Quad Core Processor 8 GB

1 TB
(High Speed SATA or SAS Drive with RAID 0 or RAID 10 config)

64 bit

 The recommended software requirements for installing and running NetFlow Analyzer are as follows:

Supported Operating Systems Supported Browsers
  • Windows 8
  • Windows Server 2012
  • Windows 7
  • Windows Vista
  • Windows XP - All SP
  • Windows 2008 - All SP as well as R2
  • Windows 2003 Server - All SP
  • Windows 2000 Professional with SP 4
  • Windows 2000 Server
  • RedHat Linux 9.0
  • RedHat Linux 8.0
  • RedHat Enterprise Linux 6.2
  • Red Hat Linux
  • Cent OS 6.2
  • Mandriva 2011.0 (Hydrogen)
  • Fedora 16
  • Debian version 6.0
  • Ubuntu 10
  • SUSE
  • Internet Explorer 5.5 and above
  • FireFox 1.x
  • Netscape 7.0 and above
  • Google Chrome 9.0 and above
Supported Databases
Bundled with the product
  • PostGRESQL
External Databases
  • MS SQL 2005
  • MS SQL 2008
  • MS SQL 2012

Note: NetFlow Analyzer runs in both Windows and Linux, supports NetFlow® versions 5/7/9,sFlow® , cflowd® ,J-Flow® , IPFIX® , NetStream® . For router and switch specifications refer the Configuring Cisco Devices section of the User Guide.

Database Tuning Parameters

When you find that the client response is slow and the reports are taking longer time to get generated, you can tune a few database parameters to improve the performance of the system. The database parameters for NetFlow Analyzer are tuned to work well with 512 MB of RAM and in cases where you are running with more RAM, you can easily tune the MySQL parameters to extract better performance. This can result in significant improvements in the client response. These parameters can be set in startDB.bat file present in <NetFlow Analyzer Home>/bin directory ( in case of Linux).

The 2 main parameters are the key_buffer_size and the innodb_buffer_pool_size. These values are set to --key_buffer_size=180000000 --innodb_buffer_pool_size=212000000 by default

Note: Please take a back up of this file before you make any changes. In case you are uncomfortable making these changes, please send a mail to so that we can assist you in doing this.

  • For a machine running with 1 GB of RAM, you can set these to
    --key_buffer_size=360000000 --innodb_buffer_pool_size=424000000
  • For a machine running with 2 GB of RAM, you can set these to
    --key_buffer_size=720000000 --innodb_buffer_pool_size=848000000
Customer Speaks

"NetFlow Analyzer has helped us reduce the time taken to isolate and
contain threats like worms and virus attacks. It has also helped us to solve network incidents faster, and do better capacity planning."

Fred Hassard, Sr. Network Engineer, Adventist Health