[ovs-dev] [PATCH 2/2] ipfix: Update Timestamp when flow updated

[Ben Pfaff]

On Tue, Jun 06, 2017 at 01:42:08PM -0700, Greg Rose wrote:
> On 06/06/2017 08:22 AM, Ben Pfaff wrote:
> >On Mon, Jun 05, 2017 at 08:34:32PM -0700, Greg Rose wrote:
> >> On 06/05/2017 06:04 PM, Ben Pfaff wrote:
> >>> From: Greg Rose <gvrose8192 at gmail.com>
> >>>
> >>> Reported-by: Felix Konstantin Maurer <felix.maurer at comsys.rwth-aachen.de>
> >>> Signed-off-by: Greg Rose <gvrose8192 at gmail.com>
> >>> [blp at ovn.org changed this to use ipfix_now()]
> >>> Signed-off-by: Ben Pfaff <blp at ovn.org>
> >>> ---
> >>>   ofproto/ofproto-dpif-ipfix.c | 1 +
> >>>   1 file changed, 1 insertion(+)
> >>>
> >>> diff --git a/ofproto/ofproto-dpif-ipfix.c b/ofproto/ofproto-dpif-ipfix.c
> >>> index 5589b0ea05e1..bc63b7b0294b 100644
> >>> --- a/ofproto/ofproto-dpif-ipfix.c
> >>> +++ b/ofproto/ofproto-dpif-ipfix.c
> >>> @@ -1643,6 +1643,7 @@ ipfix_cache_update(struct dpif_ipfix_exporter *exporter,
> >>>           ipfix_cache_aggregate_entries(entry, old_entry);
> >>>           free(entry);
> >>>           ipfix_update_stats(exporter, false, current_flows, sampled_pkt_type);
> >>> +        old_entry->flow_end_timestamp_usec = ipfix_now();
> >>>       }
> >>>   }
> >>>
> >>>
> >> Looks good, thanks Ben!
> >
> >Thanks for the review!
> >
> >If I recall correctly, Felix reported that your original patch didn't
> >help, though, so probably this one doesn't either.  We should track that
> >down before we go farther, I guess.
> >
> Yes, I'm am following up.  Having all sorts of problems getting a working ipfix flow collector to work though.  The ManageEngine netflow collector claims to work with ipfix but SFAICT it does not so I'm not going to waste more time on it.  Once I can start
> collecting and analyzing the work should proceed quickly.

I never applied this patch (from June) because we were continuing to
look deeper.  I don't know whether that ever bore fruit.  Should I apply
this patch now?

Thanks,

Ben.