5 Replies Latest reply on Mar 19, 2009 4:27 PM by davidmaltby

    Measurement error: HP 5406zl vs. HP 2610-24

      Hi!


      We are using solarwinds to verify the traffic measured by our isp . For this purpose we had used until 2 days ago an hp 5406zl (sflow). We replaced the switch with an hp 2610-24. Now we have got the problem, that the hp 2610 is not measuring the traffic correct.  I downloaded a file from the solarwinds host solarwinds.s3.amazonaws.com bwith nearly 34 Mbytes and the hp2610 displayed me just a traffic von nearly 3 Mbytes. The hp 5406zl reported 34,5 Mbytes from solarwinds.s3.amazonaws.com. Are there any know issues or bugs? What can I do or check?


       


      Daniel

        • Re: Measurement error: HP 5406zl vs. HP 2610-24
          davidmaltby

          There was a known issue in NTA 3.1, where we were dropping traffic.  It should be fixed in Service Pack 2.  Try that and let us know if that helps.

          Thanks,

          David

            • Re: Measurement error: HP 5406zl vs. HP 2610-24

              Still the same. I also replaced the hp 2610-24 switch by another hp 2610-24 switch (different firmware releases). The same problem... :-(

              Daniel

              HP 2610-24:

              ProCurve Switch 2610-24# show sflow destination
                sflow                     : Enabled
                Datagrams Sent            : 4354
                Destination Address       : 192.168.90.3
                Receiver Port             : 9990
                Owner                     : Administrator
                Timeout (seconds)         : 2147380929
                Max Datagram Size         : 1400
                Datagram Version Support  : 5

              ProCurve Switch 2610-24# show sflow sampling
               sflow destination Enabled

               Port  | Sampling                 Dropped    | Polling
                     | Enabled  Rate     Header Samples    | Enabled Interval
               ----- + -------  -------- ------ ---------- + ------- --------
               1       Yes      20       128    19320        Yes     30
               2       Yes      20       128    18847        Yes     30
               3       Yes      20       128    0            Yes     30
               4       Yes      20       128    538          Yes     30
               5       Yes      20       128    0            Yes     30
               6       Yes      20       128    0            Yes     30
               7       Yes      20       128    4015         Yes     30
               8       Yes      20       128    0            Yes     30
               9       Yes      20       128    3553         Yes     30
               10      Yes      20       128    97           Yes     30
               ...

              HP 5406zl

              ProCurve Switch 5406zl> show sflow 1 destination
                Destination Instance      : 1
                sflow                     : Enabled
                Datagrams Sent            : 246691
                Destination Address       : 192.168.90.3
                Receiver Port             : 9990
                Owner                     : Administrator, CLI-Owned, Instance 1
                Timeout (seconds)         : 2147343711
                Max Datagram Size         : 1400
                Datagram Version Support  : 5

              ProCurve Switch 5406zl> show sflow 1 sampling                                            

               Port  | Sampling                 Dropped    | Polling
                     | Enabled  Rate     Header Samples    | Enabled Interval
               ----- + -------  -------- ------ ---------- + ------- --------
               A1      Yes(1)         50    128          0   Yes(1)        30
               A2      Yes(1)         50    128          0   Yes(1)        30
               A3      Yes(1)         50    128          0   Yes(1)        30
               A4      Yes(1)         50    128          0   Yes(1)        30
               A5      Yes(1)         50    128          0   Yes(1)        30
               A6      Yes(1)         50    128          0   Yes(1)        30
               A7      Yes(1)         50    128          0   Yes(1)        30
               A8      Yes(1)         50    128          0   Yes(1)        30
               A9      Yes(1)         50    128          0   Yes(1)        30
               A10     Yes(1)         50    128          0   Yes(1)        30
              ...