Hello,


I'm currently deploying nfsen on my network, and I have a strange issue, the 
flow graphs can't go higher than 100k packet/s per netflow peer.



I have 2 hosts that reach this limit and I never get more than 200k packets/s 
on my graphs , here is a graph that shows the issue (CR3 and CR4 have almost no 
traffic) :



[cid:image001.png@01CFBBB7.FE46B610]



I did search online to find any limit on nfsen but I can't find anything.



Or routers (CR# here) are Juniper MX80, with this configuration (nothing 
special) :


forwarding-options {
    sampling {
        input {
            rate 100;
        }
        family inet {
            output {
               flow-server xxx {
                   port 9995;
                    version 5;
                }
            }
        }
    }
}





I have the 4 peers on the same netflow port :



%sources = (

    'cr1'    => { 'port' => '9995', 'IP' => 'xxxx.1', 'col' => '#CC0000', 
'type' => 'netflow' },

        'cr2'    => { 'port' => '9995', 'IP' => 'xxxx.2', 'col' => '#FF9900', 
'type' => 'netflow' },

        'cr3'    => { 'port' => '9995', 'IP' => 'xxxx.121', 'col' => '#66CC33', 
'type' => 'netflow' },

        'cr4'    => { 'port' => '9995', 'IP' => 'xxxx.122', 'col' => '#009999', 
'type' => 'netflow' },

);



Have you an idea of what could cause this issue ?



Thank you.



Best regards,

Mathieu
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