System Requirements | NetFlow Analyzer Help Documentation

System Requirements for NetFlow Analyzer

The recommended hardware requirements for installing and running NetFlow Analyzer Standard, Professional, and Enterprise Editions are as follows:

Parameter	Standard/Professional Edition	Enterprise Edition
Parameter	Standard/Professional Edition	Central Server	Probe
Processor	2.4 GHz Quad Core Processor	2.4 GHz Dual Core	3.2 GHz Quad core
RAM	4 GB	4 GB	8 GB
Hard-disk space	200GB for database	600 GB	1 TB SATA hard disk
Operating System	64 bit	64 bit	64 bit

Please note that change in flow rate will lead to change in system requirements for Professional and Enterprise Editions as given below:

Rate of Flow/Second	Processor	RAM	Disk space for Aggregate Data (Forever)	Additional Disk space for RawData (Optional)	Server Type
0 to 3k	2.4 GHz Quad Core Processor	4 GB	200 GB	75 GB/Day	-
3k to 6k	3.2 GHz Quad Core Processor	6 GB	200 GB	150GB/Day	64 bit
6k to 9k	3.2 GHz Quad Core Processor	8 GB	200 GB	225GB/Day	64 bit
9k to 10k	3.2 GHz Quad Core Processor	16 GB	200 GB	250GB/Day	64 bit
10k to 25k	3.2 GHz Quad Core Processor	18 GB	225 GB	-	64 bit
25k to 50k	3.2 GHz Quad Core Processor	20 GB	250 GB	-	64 bit
50k to 75k	3.2 GHz Quad Core Processor	22 GB	300 GB	-	64 bit
75k to 100k	3.2 GHz Quad Core Processor	24 GB	350 GB	-	64 bit

* Aggregated data is calculated based on the top 100 records.

For the device exporting NetFlow, ensure that the NetFlow export version format is exactly the same as the Cisco NetFlow version 5 or version 7 or version 9 format. For information on Cisco devices and IOS versions supporting Netflow, consult the Cisco NetFlow Device Support table.

Software Requirements

Software	Version requirements for Evaluation	Version requirements for Production
Windows OS	Windows 11	Windows Server 2025/ 2022/ 2019/ 2016
Linux OS	Ubuntu 16 to 25/ Fedora 41, 42/ Red Hat 7, 8 , 9, 10/ Opensuse 15/ Debian 11, 12, 13	Ubuntu 16 to 25/ Red Hat version 7, 8, 9, 10/ CentOS Stream 9, 10
Browsers	Google Chrome/ Mozilla Firefox/ Microsoft Edge	Google Chrome/ Mozilla Firefox/ Microsoft Edge

User Privilege: Local administrator privileges is required for NetFlow Analyzer installation.

Port Requirements

Port Name	Default Port Numbers	Protocol	Usage	Direction
Web server port	8060	TCP	This is the port on which you will connect to the NetFlow Analyzer server from a web browser. You can change this at any time from the Settings tab.	Inbound
NetFlow Listener port	9996	UDP	This is the listener port on which NetFlow exports are received from routers. You can change this at any time from the Settings tab.	Inbound
Embedded database port	13306	TCP	This is the default port used to connect to the PostgreSQL database in NetFlow Analyzer.	N/A
MSSQL	1433	TCP	This is the port that connects NetFlow Analyzer to a SQL database.	N/A
SNMP	161	UDP	This is the default SNMP port to fetch the device information and configure SNMP based NBAR.	Bidirectional
Wrapper	32000-32999	TCP	Min & Max port usage.	N/A
JVM	31000-31999	TCP	To connect to Wrapper.	N/A
HTTPS Port	443	TCP	This is the port through which the probe communicates with the central server.	Bidirectional

Database Requirements

The following table lists the basic requirements for your OpManager database server.

PostgreSQL

Comes bundled with the product.
In case of failover, please use MS SQL.

Microsoft SQL

1. Supported versions:

Note: The MSSQL backend has been tested for NetFlow Analyzer with the following cloud services: AWS RDS, Google Cloud Platform SQL, Azure SQL and Azure SQL Managed Instance.

SQL 2022 (from build 12.8.452) | SQL 2019 | SQL 2017 | SQL 2016

2. Important Notices:

1. For production use 64 bit versions of SQL
2. Recovery mode should be set to SIMPLE.
3. SQL and OpManager should be in the same LAN. Currently WAN based SQL installations are not supported.

3. Collation:

English with collation setting (SQL_Latin1_General_CP1_CI_AS)
Norwegian with collation setting (Danish_Norwegian_CI_AS)
Simplified Chinese with collation setting (Chinese_PRC_CI_AS)
Japanese with collation setting (Japanese_CI_AS)
German with collation setting (German_PhoneBook_CI_AS)

4. Authentication:

Mixed mode (MSSQL and Windows Authentication).

5.BCP:

The "bcp.exe"(Windows)/"bcp"(Linux) and "bcp.rll" must be available in the OpManager bin directory.
The BCP utility provided with Microsoft SQL Server is a command line utility that allows you to import and export large amounts of data in and out of SQL server databases quickly.

For Windows:

The bcp.exe and bcp.rll will be available in the MSSQL installation directory. If MSSQL is in a remote machine, copy bcp.exe and bcp.rll files and paste them in the <\OpManager\bin> directory.

The SQL server version compliant with the SQL Native Client must be installed in the same Server.

For Linux:

For BCP utility in Linux, mssql-tools (Microsoft ODBC driver for Linux) should be installed on a NetFlow Analyzer installed machine. Please follow the steps in the document provided below to install Microsoft ODBC driver on Linux servers.

https://learn.microsoft.com/en-us/sql/connect/odbc/linux-mac/installing-the-microsoft-odbc-driver-for-sql-server

The command to install ODBC driver is different for every Linux flavor. Please choose the correct Linux flavor and install the ODBC driver.

Steps to move BCP utility to NetFlow Analyzer :
- After the ODBC driver is installed in Linux servers, the bcp utility files can be found in the below mentioned path. Copy both bcp and bcp.rll files to <opmanager_home>/bin and start NetFlow Analyzer once.
- For ODBC driver version 18: bcp file in /opt/mssql-tools18/bin/ and bcp.rll file in /opt/mssql-tools18/share/resources/en_US/
- For other versions of ODBC: bcp file in /opt/mssql-tools/bin/ and bcp.rll file in /opt/mssql-tools/share/resources/en_US/
To learn information about HighPerf add-on prerequisites, please refer to this page
Note: NetFlow Analyzer runs in both Windows and Linux, supports NetFlow® versions 5/7/9,sFlow® , cflowd® ,J-Flow® , IPFIX® , NetStream®. To know which devices it supports refer Configuring Cisco Devices section of the User Guide.