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

[Su Jinzhao]

Hi, Guys：

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?

Thanks.
-- 
Su Jinzhao
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