<![CDATA[delta calculation , Net.Interface.BytesIn(*)]]>HI,
  I created DCI "Net.Interface.BytesIn(*)",* is the index of interface,and selected "Delta value(average per second)".I use the method "Session.queryParameter()" (Java API version 1.1.6),the result returned is the total number of bytes-in ,not delta value average per second ,I've also viewed the origin data in database and it is exactly delta value per second,why??

]]>https://forum.netxms.org/topic/1609/delta-calculation-net.interface.bytesinRSS for NodeFri, 13 Nov 2026 07:40:21 GMTFri, 17 Feb 2012 11:06:40 GMT60<![CDATA[Reply to delta calculation , Net.Interface.BytesIn(*) on Mon, 27 Feb 2012 11:53:33 GMT]]>thank you,I've tried fetching the last value in database using getDciDataRow,and it worked fine

]]>https://forum.netxms.org/post/6992https://forum.netxms.org/post/6992Mon, 27 Feb 2012 11:53:33 GMT<![CDATA[Reply to delta calculation , Net.Interface.BytesIn(*) on Thu, 23 Feb 2012 13:43:10 GMT]]>Hi!

Because delta calculation is done by server after data obtained from node as part of DCI processing. When you do queryParameter call, it just reads raw value from end node - it is not related to any DCI. You either have to do delta calculation by yourself or use another API call to get last values of particular DCI.

Best regards,
Victor

]]>https://forum.netxms.org/post/6951https://forum.netxms.org/post/6951Thu, 23 Feb 2012 13:43:10 GMT