The recommended hardware requirements for installing
and running NetFlow Analyzer are as follows:
No. of Interfaces to be Managed
Processor
RAM
Hard-disk Space
Upto 10 (low end routers)
2.6 GHz P-D/ 3.0 GHz P4 HT or equivalent
512 MB
20 GB
11 - 25
2.8 GHz P-D or equivalent
1 GB
40 GB
26 - 50
2.6 GHz Core 2 Duo or equivalent
1 GB
60 GB
51 - 100
3.0 GHz Core 2 Duo / 2.4 GHz dual core Xeon 3000 series or equivalent
2 GB
75 GB
101 - 300
2.6 GHz dual core 3000 series Xeon Processor or equivalent
4 GB
225 GB
301 - 600
2.6 GHz quad core 3000 series Xeon Processor or equivalent
4 GB
450 GB
The recommended software requirements for installing
and running NetFlow Analyzer are as follows:
Supported Operating
Systems
Supported Browsers
Windows Vista
Windows 2000 Server
Windows 2000 Professional with SP 4
Windows 2003 Server
Windows XP with SP 1
RedHat Linux 8.0
RedHat Linux 9.0
Internet Explorer 5.5 and above
FireFox 1.x
Netscape 7.0 and above
Mozilla 1.5 and above
Note: NetFlow Analyzer 6 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 (startDB.sh 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 support@netflowanalyzer.com
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
As a network manager you need to be on top of your network to be in control of the day-to-day happenings in your network. Especially, with more and more businesses being increasingly dependent on the internet, it is very vital that you are in total control of your network.Any network outage has to be quickly attended to and fixed right away. More importantly any network incidents has to be pro-actively attended to. NetFlow Analyzer with its proactive alerting mechanisms ensure that you are informed of any network exceptions as it happens. Also the drill down features let you quickly pin down the cause of any network problems and troubleshoot faster.
It is also very essential that you ensure your business critical applications are not starved off bandwidth while non-critical activities like music downloads hog the available bandwidth. By giving you an indepth visibility in to your network and the bandwidth usage statistics you can appropriately set QoS policies. It is also possible to categorize applications that consume bandwidth by port, protocol and IP address. This way you can be fully empowered to ensure that the business critical applications always have the required bandwidth.
As a network administrator you need to have all the reports to take the right decision. Especially when it comes to bandwidth capacity planning decisions the stakes involved are high and even a small mistake can cost huge money. NetFlow Analyzer with its long range historical reporting lets you take the right decisions. Also as a network administrator you need to have periodic reporting to understand how the network is performing. NetFlow Analyzer's automatic report generation feature at scheduled time periods help you with just that.
Should you need any specific information at any point in time, you could just access the application for a quick snapshot. NetFlow Analyzer's dashboard presnet you with all the vital metrics you need to eb aware on as an administrator. You could drill down on it for any further infromation on any specific element of your network.
