Hi all,

Is it possible to monitor applications bandwidth utilization in a particular network via network monitoring tool. If so what is the best tool should I have to go, by considering my below requirement.

1) If I enables snmp in a router shall I able to monitor bandwidth in application wise (I see BW monitoring in port wise example - nagios and mrtgtraff - in nagios but how to do application wise )
eg- which shows this bandwidth for mysql queries, this for proxy request, this for say some 3rd part application.....

2)My company has several vpns to connect different sites. each site has a router and switches connecting to it. I want to monitor bandwidth utilization of these in maximal detail (** What is the application that generate the particular traffic ** monitoring in port wise in the particular switch or router). Please refer me to the howto achive such by using which tool.??

Netflow collects data based on source, destination and port, using the switches and routers as the collection points. ..
that's about the closest thing I can think of.

http://www.networkuptime.com/tools/netflow/

Hi found the site but there are many tools and don't know which will do the best matching of my requirement?

Could you please mention what should I have to go?

Hi Pubudu, did you check about "ntop",it may be useful
http://www.ntop.org/news.html

Not knowing your exact requirements or preferences I thought it best to let you look at each one and choose..

as kirukan says ntop is rather popular.