Thanks Iwase
I am thinking to get this entry with its information (the actions) then I
delete it and add new one.
So I am wondering how to get an entry basing a match using the destination
address.
Then I want to know if it is possible to get the corresponding actions, so
I can create new entry by enhancing the action by adding new port ?
Please tell me how to get the entry basing the destination address filter
and how to get the corresponding action ?
Thanks in advance.
Regards
2016-02-08 2:30 GMT+01:00 Yusuke Iwase <[email protected]>:
> Hi,
>
>
> On 2016年02月06日 01:58, David Gabriel wrote:
> > Dears
> >
> > Is it possible to update/modify one entry by adding new action ?
> > Please tell me the how to ?
>
> AFAIK, it is NOT possible.
>
> OpenFlow Spec 1.3.5 says:
> ---
> 6.4 Flow Table Modification Messages
> ...
> For modify requests (OFPFC_MODIFY or OFPFC_MODIFY_STRICT), if a matching
> entry exists in the table,
> the instructions field of this entry is replaced with the value from the
> request, whereas its
> cookie, idle_timeout, hard_timeout, flags, counters and duration fields
> are left unchanged.
> ...
> ---
>
> So, FlowMod messages will replace the entire actions(instructions) in the
> matching entry with the
> value from the request.
>
> If you want to "append" new actions into the existing entry, just an idea,
> How about getting the existing entry by FlowStats messages first, then
> creating FlowMod messages
> using the actions from FlowStats reply body.
>
> Thanks,
> Iwase
>
> >
> > Thanks in advance.
> > Regards
> >
> >
> >
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