[ovs-discuss] How to know lifetime of each matched flow?

Su Jinzhao sujinzhao at gmail.com
Sat Mar 7 10:14:42 UTC 2020

So you mean we can't identify when does each flow start and stop just with
Suppose we installed per flow entry for each flow, how can we calculate
transmitting rate bps and pps of each flow with just the total number of
bytes and packets in the output of dump-flows?


Ben Pfaff <blp at ovn.org> 于2020年3月7日周六 上午3:27写道:

> On Fri, Mar 06, 2020 at 08:27:38PM +0800, Su Jinzhao wrote:
> > I noticed that for each flow entry or meter, there are n_bytes, n_pkts,
> > duration field with the output of dump-flows or meter-stats command. I
> know
> > that the duration field for a flow entry is the time since it installed
> in
> > the switch.
> >
> > BUT, how can I know when does each matched flow start and stop?
> If you need to know that for individual connections, you might want to
> try NetFlow.

Su Jinzhao(苏金钊)
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