Hi Giles, I'll read them right now. But from nfsen side, is it possible to change 5 minutes cycle time to a lower value, let's say 1 minute ??? I mean the interval that Nfsen writes the data to the graphs.
Thanks again, regards !!! El mar., 21 abr. 2020 a las 10:57, Giles Coochey (<gi...@coochey.net>) escribió: > This might help: > > > https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/netflow/configuration/xe-16/nf-xe-16-book/nflow-filt-samp-traff-xe.html#GUID-811CA1DB-CFBF-4656-BD9E-12F47AF5FFD3 > > or if using Flexible netflow > > > https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/fnetflow/configuration/15-mt/fnf-15-mt-book/use-fnflow-redce-cpu.html#GUID-7B2222C9-0C2C-4A11-912B-B844F4A43C58 > > If you are not using Cisco, but your software emulates the cisco type > configuration methods, then the above may still apply. > On 21/04/2020 14:46, Roberto Carna wrote: > > OK, I understand....let me ask you a lst question please: > > Where should I configure the sampling time in nfsen? I mean the frequency > that nfsen writes the flow data in the graphs. > > Thanks a lot again!!! > > El mar., 21 abr. 2020 a las 10:37, Giles Coochey (<gi...@coochey.net>) > escribió: > >> On 21/04/2020 14:09, Roberto Carna wrote: >> >> Dear all, thanks for your comments. I think the netflow configuration >> from my router lets flows last more than 5 minutes, so I have spikes in my >> graphs as you said. >> >> This is my netflow router config, please can you tell me if you can see >> the flow timeout value in order to adjust it??? >> >> #sh ip flow export template >> Template Options Flag = 0 >> Total number of Templates added = 1 >> Total active Templates = 0 >> Flow Templates active = 0 >> Flow Templates added = 0 >> Option Templates active = 0 >> Option Templates added = 1 >> Template ager polls = 0 >> Option Template ager polls = 38535501 >> Main cache version 9 export is enabled >> Template export information >> Template timeout = 30 >> Template refresh rate = 20 >> Option export information >> Option timeout = 30 >> Option refresh rate = 20 >> #sh ip cache flow IP packet size distribution (107758M total packets): >> IP Flow Switching Cache, 0 bytes >> 3773 active, 196227 inactive, 1293394830 added >> 52708905 ager polls, 0 flow alloc failures >> Active flows timeout in 30 minutes >> Inactive flows timeout in 15 seconds >> last clearing of statistics never >> >> It does depend on (a) the version of software you are using and (b) how >> you have chosen to configure Netflow. >> >> For instance recently versions of Cisco IOS allow for configuring Netflow >> as it used to be configured, or in a way known as "Flexible Netflow". >> >> Look for something like "ip flow-cache timeout active" >> >> Or, if you have a section in your config called "flow monitor" look to >> add "cache timeout active" to that section. >> >> Best to check the documentation for your router, it should be documented >> there. >> >> -- >> Giles Coochey >> >> _______________________________________________ >> Nfsen-discuss mailing list >> Nfsen-discuss@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/nfsen-discuss >> > > > _______________________________________________ > Nfsen-discuss mailing > listNfsen-discuss@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/nfsen-discuss > > -- > Giles Coochey > > _______________________________________________ > Nfsen-discuss mailing list > Nfsen-discuss@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/nfsen-discuss >
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