2 Replies Latest reply on Apr 5, 2011 12:42 PM by jrmann1999

    Percentages wrong


      I've tried playing with the graphs for netflow(rate vs % of interface), but they are reporting the wrong values.


      NTA 3.7, Orion NPM 10.1.2

      Link speed is an OC3, cisco router exporting netflow v5:

      interface POS2/0
       ip address <redacted>
       no ip redirects
       no ip unreachables
       no ip proxy-arp
       ip accounting output-packets
       ip flow ingress
       ip pim sparse-dense-mode
       load-interval 30
       no cdp enable
       max-reserved-bandwidth 90
       service-policy output pm_wan_out

      ip flow-export source Loopback0
      ip flow-export version 5
      ip flow-export destination <orion server IP> 2055

      Percentages in the attached screenshot are well above 100%, but you can see the individual line item entries show correct percentages, what is wrong?


        • Re: Percentages wrong

          By default long lived Netflow cache data is exported every 30 minutes.  This will cause some high peaks in the graphs since the flow data is exported at one time.  The following commands will help to reduce the peaks:


          ip flow-cache timeout active 1 ( Breaks up long-lived flows into 1 minute fragments and smooths out the peaks and get a more accurate data representation on the graphs)

          ip flow-cache timeout inactive 15 ( makes sure that flows that have finished are exported)


          Hope this helps