[CentOS] Switch to measure traffic at IP level?

[aurfalien at gmail.com]

Couple of diff ways to go about this.

I use Cacti and monitor throughput via SNMP for the dom0.

I also enable SNMP on my switch and monitor throughput of individual  
ports.

However if you want granularity like monitoring at the network layer  
(IP or layer 3), then you can look at the netflow like plugin (flow- 
tools and flow-scan) for Cacti and monitor actual traffic patterns of  
individual hosts.

Or get a netflow or sflow collector in general depending on what your  
switch supports and enable netflow/sflow just on those ports of  
interest, like the one your dom0 is on.


On Oct 25, 2009, at 6:14 PM, Mathew S. McCarrell wrote:

> On Fri, Oct 23, 2009 at 12:07 PM, Neil Aggarwal <neil at jammconsulting.com 
> > wrote:
> Matt:
>
> > depending on what your using for virtualization, you might be able  
> to pull
> all
> > of those stats with snmp on the host.
>
> I am using KVM on CentOS 5.4
>
> Let me know if you think it is possible to gather everything
> I need at the host without requirining anything from the guests.
>
>
> You might be able to use "virsh domifstat" or something similar.
>
> Matt
>
> --
> Mathew S. McCarrell
> Clarkson University '10
>
> mccarrms at gmail.com
> mccarrms at clarkson.edu
> 1-518-314-9214
>
>
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