2 Replies Latest reply on Sep 30, 2019 2:32 AM by donrobert5

    Netflow data not showing correctly for certain interfaces.

    faizan_123

      We have configured netflow on our network devices, we have many devices with different link speeds eg.  100 mbps, 1Gbps, 10 Gbps. The netflow data corresponds to the usage when the link speed is upto 100 Mbps. But when the interface speed is above 100 Mbps eg: 1Gbps or 10 Gbps. We are seeing big data difference between the netflow data and the current utilization.

       

      Example:  We transferred about 200 Gb of data through a 10 Gb link within a certain period of time, but the netflow data is only showing around 10 Gb of data being transferred.

       

      Any help is greatly appreciated.

       

      Below  is the netflow  configuration it is a Cisco ASR 1006 Router

      flow exporter export-to-BBU

      description to BBU Netflow collector

      destination Collector IP

      source TenGigabitEthernet0/1/0

      transport udp 2055

      export-protocol netflow-v5

      !

      !

      flow monitor FMforIP4in

      exporter export-to-BBU

      cache timeout active 60

      cache entries 75000

      record netflow-original

      !

      !

      flow monitor FMforIP4out

      exporter export-to-BBU

      cache timeout active 60

      cache entries 75000

      record netflow-original