Network Monitoring software


I am after some software which I can put on to the netowrk to monitor traffce and bandwith from devices and switches. I wouid like to be able to see what switchtes and devices are using the most bandwith across the network

Any suggestions

Thanks Mark
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Kamran ArshadConnect With a Mentor IT AssociateCommented:

Below is the extended list and after that are the recommendations;


SolarWinds Orion      Propriety
Adventnet OP Manager      Propriety
WhatsupGold      Propriety
SNMPc      Propriety
CommView      Propriety
Observer      Propriety

Vendor Specific-NMS
IronView      www,      Propriety
Procurve Manager Plus      Propriety
CiscoWorks      Propriety

Flow Analyzers            

SolarWinds NetFlow Analyzer      NetFlow/SFlow
Scrutinizer NetFlow/Sflow Analyzer      NetFlow/SFlow
Caligare Flow Inspector      NetFlow/SFlow
PRTG      NetFlow/RRDTool
Adventnet Netflow Analyzer      NetFlow
StealthWatch┬« Xe      SFlow
Traffic Sentinel      SFlow
Splunk      Propriety

Open-Source NMS            

Ntop      LAMP based NMS
Bandwidthd      LAMP based NMS
Etherape      LAMP based NMS
Cacti      RRDTool

Explaining the above list a bit, the flow analyzers will give you top users per IP and per protocol. Rest applications are SNMP based NMS. The flow analyzers help you see the per protocol and per IP statistics but your devices need to  support flow technologies. Personal recommendations are using Cacti, PRTG.             
Leon TealePenetration TesterCommented:
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