[ovs-discuss] can I set the counters of the to-be-installed rule when adding a new rule to the flow table?

Justin Pettit jpettit at nicira.com
Thu Oct 15 08:58:05 UTC 2015


> On Oct 15, 2015, at 1:47 AM, YB <947835908 at qq.com> wrote:
> 
> Hi all,
> 
> Can I set the counters of the to-be-installed rule when adding a new rule to the flow table?
> 
> To be more specific, ( ovs-ofctl add-flow s1 "in_port=2 actions=output:3" ) can add a new rule in switch s1.
> With dump-flows command, we can see something like:
> "... n_packets=0, n_bytes=0,..., in_port=2, actions=output:3...".
> 
> So, my question is can I set the field of "n_packets"/"n_bytes" to an arbitrary number as desired?
> Is is possible?
> If yes, how?

No.

> Also, if it is not possible in OpenVswitch, do any commercial physical SDN switches support this?

I don't know why they would, but I'm not aware of any.  The usual assumption when these sorts of requests came up in OpenFlow is that software can keep track of the original value and provide a diff.

--Justin





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