Re: [Nfdump-discuss] handling template timeout

[Peter H. <ph...@us...>]

Hi,
So far, I never saw an exporter, which limits the lifetime of templates.

On 20/09/15 17:46, Николай Кинаш wrote:
> Hi all.
> 
> Is nfcapd check timeout of templates?
> From https://www.ietf.org/rfc/rfc3954.txt
> 9.  The Collector Side
>    ........
>    The life of a template at the Collector is limited to a fixed refresh
>    timeout.  Templates not refreshed from the Exporter within the

To my knowledge, this "fixed refresh timeout" is nowhere really defined.

>    timeout are expired at the Collector.  The Collector MUST NOT attempt
>    to decode the Flow or Options Data Records with an expired Template.
> 
> I have inspected source code of nfdump. I haven't find any instructions to check timeout of template inside Process_v9 function.
> There is only functions GetTranslationTable and add_translation_table. 
> There is nothing like "remove_expire_translation_table" function.

Templates are opnly updated if they get refreshed from the device. They do not expire.
Any pointers in how this "fixed refresh timeout" is defined are welcomed!

Thanks

	- Peter

> 
> Thanks.
> 
> 
> 
> ------------------------------------------------------------------------------
> 
> 
> 
> _______________________________________________
> Nfdump-discuss mailing list
> Nfd...@li...
> https://lists.sourceforge.net/lists/listinfo/nfdump-discuss
>