Also, you can edit your filters to take into account the exporter router ip
and input/output interface indexes when you count traffic for a prefix.
Something like
router ip *ip_of_router1* and in if *snmp_index_of_input_interface* and src
ip 1.2.3.4 and dst net 5.6.7.0/24
On Tue, Mar 6, 2012 at 7:23 PM, Tiago Flôres <[email protected]>wrote:
> Dear colleagues
>
> I have eight routers exporting flow to one source (I am not sure if it
> is the best scenario) or should I have each router exporting flow to
> own source (router1 -> source1, router2 -> source2, ...). One of these
> routers is a mpls concentrator and the others seven are peers, like
> clients. The concentrator is where the servers are installed. The
> network traffic are mostly destinated to the main site (router1) which
> has 34Mbps mpls bandwidth.
>
> I am using DST NET and SRC NET to classify the traffic for down and
> upload directions. The thing is I've been getting discrepancies in
> traffic graphs. The main site where I've 34Mbps 'physically limited'
> is showing me up to 90 Mbps in nfsen graphs.
>
> Remembering that I have eight routers exporting to one source. In this
> among of flows I am trying to analyze and identify the traffic which
> goes to router1, but the traffic graphed is much more than the
> interface is able to support.
>
> The flows are from all interfaces of all routers? LAN and WAN?
>
> By default nfsen aggregates identical network traffic? Or could the
> flows are not been aggregated?
>
> I am guessing around .... the same traffic which ingress in router1
> WAN is arriving in router1 LAN interface, what about it?
>
> Thanks in advance for any explanations
>
>
> Hugs
>
> Tiago
>
>
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