NetFlow Analyzer lets you capture and analyze your entire network traffic. Learn how to visualize traffic details such as speed, volume, packets, and utilization with the help of our network traffic analyzer. FREE TRIAL -https://www.manageengine.com/products/netflow/download.html
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Webinar: How to captures and analyzes NetFlow, J-Flow and sFlow data
1. NetFlow Analyzer Webinar - Part I
Flow data - How to configure and monitor it?
Export flows Traffic group
& App map
Configure
Alerts
Reporting
2. CHALLENGES IN MONITORING THE NETWORK
• WHAT IS GOING THROUGH THE NETWORK ?
• WHO ARE THE TOP TAKERS ON THE NETWORK ?
• WHAT ARE THE TOP DESTINATIONS ?
• WHAT IS THE TOTAL TRAFFIC OF LAYER 4 & LAYER 7 APPLICATION
• WHETHER THE EMPLOYEES ARE EFFICIENTLY USING THE BANDWIDTH FOR
BUSINESS PURPOSE ?
• WHY IS THE INTERNET SLOW IS IT THE BANDWIDTH ISSUE ? OR IS
SOMETHING ELSE BLOCKING IT DOWN ??
5. INTRODUCTION TO NETFLOW ANALYZER
> It is a simple bandwidth monitoring, traffic analysis tool
> NetFlow, sFlow, IPFIX, J-Flow, NetStream, Appflow - For bandwidth & traffic analytics
> Helps you to drill down into interface level details to discover traffic pattern and device
performance
> Recognize and classify Non-Standard Apps that hog your network bandwidth using NFA
> Detect a broad spectrum of external and internal security threats
* We support any new flow type in couple of weeks
6. CHARACTERISTIC OF NETFLOW ANALYZER
• On-premise
• Web-based
• Agent less
• Available for both Windows and Linux platform
• NetFlow Analyzer supports PostgreSQL and MSSQL as
database
7.
8. Router
Packet
Src If Src Ip
Add
Src
Port
Flag Pkts Dest Ip
Add
Dest
Port
Bytes
Fa 1/0 1.1.1.1 11 10 1100 10.0.21.1 80 111
Fa 1/0 2.2.2.2 12 0 2491 10.0.22.2 80 123
Flow Cache
9. NETFLOW ANALYZER LICENSING
• NFA Licensing is based on
Interface count that you need to
monitor
• Eg: Say, If there is a device with
2 - WAN & 3 - LAN & 5 VLAN
If your requirement is to monitor
only LAN & WAN then it's 5 NFA
License
If your requirement is to monitor
only LAN & WAN & VLAN then
it's 10 NFA License
10. NFA EDITION COMPARISON
ESSENTIAL DISTRIBUTEDFEATURE
NBAR / CBQOS
CAPACITY PLANNING
ASAM
INSTANCE
FLOW RATE
X √
√
√
ABOVE 100K
FLOWS/SEC
X
X
SINGLE MULTIPLE
BELOW 100K
FLOWS/SEC
13. SERVER SPECIFICATION
• It can be installed in VM Machines with any of the
supported Operation System.
• Specs vary according to the Rate of Flows/Sec
• On Average for 3k to 6k Flows/Sec below is the spec
Processor - 4 Core
RAM - 8 GB
HDD - 500 GB
* The Spec varies according to the flow rate and NFA functionalities used
14. WE ARE CURRENTLY USING NETFLOW
ANALYZER
VERSION 12.3.179 FOR VISUAL
17. USING COMMAND LINE INTERFACE - CLI
• Set destination address (server where NFA is installed)
• Set Port for NetFlow export (Default port we listen to - 9996)
> Set version of NetFlow export
> Set time interval to export flows
> Set Source Interface for NetFlow export
> We should say what are all the interfaces we are going to take account Enabling
NetFlow on Interfaces (all Interfaces)
Ingress
Egress
> For configuration please refer the below link:
http://www.manageengine.com/products/netflow/help/cisco-netflow/cisco-ios-
netflow.html