On 9/25/13 5:22 AM, Peter Haag wrote: > Hi Mike, > Your Device uses netflow v9 convention ( tags 21,22 ) in order to specify > timestamps. These timestamps are msec offsecs > since device boot time. This methode is, to my knowledge no standard in > IPFIX, as IPFIX does not announce the sysuptime, > neither as tag nor in the header, as netflow v9 does. Therefore you need to > contact your device manufacture to change > that into IPFIX tags ( 152, 153 ). Therefore I can't help.
Just so I can wrap my head around this just a bit before attempting to open a case with Extreme -- looking at the definitions for the IPFIX tags: https://www.iana.org/assignments/ipfix/ipfix.xhtml The definition of the four tags: 21: The relative timestamp of the last packet of this Flow. It indicates the number of milliseconds since the last (re-)initialization of the IPFIX Device (sysUpTime). 22: The relative timestamp of the first packet of this Flow. It indicates the number of milliseconds since the last (re-)initialization of the IPFIX Device (sysUpTime). 152: The absolute timestamp of the first packet of this Flow. 153: The absolute timestamp of the last packet of this Flow. I think I'm missing something (forgive my ignorance). Your description of what the device is exporting into tags 21/22 (offset in msec since boot) seems to match what's listed on the tag page. Are you saying that the Extreme is currently exporting data meant for tags 153/152 into tags 21/22 by mistake? Or is the data in tags 21/22 correct but they need to also export tags 152/153 and they are not doing that? I just need to be able to clearly describe the issue and what needs to be done to fix it to them at the time I open the ticket. Thanks. - Mike ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ Nfdump-discuss mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/nfdump-discuss
