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I would like to analyse data/voice ratio within a network that uses HP switches. I tried to use HPTools that works with sFlow but it does not give good results.

Do you have any idea please ?

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Account bug. Please remove down vote. Thank you for your answer. Voice and data have two different VLAN. Cacti can do it ? Yes I could use a machin with promiscuous port and analyse the trafic but I don't want to do it with Wireshark. –  Elwyn Nov 28 '12 at 16:15
    
I am able to capture VLAN specific traffic information with Cacti on Firewalls I don't see why it wont work on a smart switch. –  Alex Nov 28 '12 at 23:57

3 Answers 3

Switch doesn't provide Transportation Layer information and you need this kind of info. One solution could be: use promiscuous port of the switch to get all the traffic, then capture the packets by wireshark and analyze the data.

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Have you tried sFlowTrend? The software is free, displays transport layer flows, and automatically configures sFlow on ProCurve switches using the sFlow MIB. The article, Five W's, describes how to use sFlow/sFlowTrend to monitor traffic and troubleshoot network problems.

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Thank you ! This software is really good. I've also tried a software of SolarWinds which gives good results. –  Elwyn Dec 4 '12 at 9:15

I'm not sure what kind of switch you have precisely but if you can tag your traffic that would be a start.

You can also use tools that rely on SNMP.

Cacti and MRTG are pretty common tools.

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