If we maintain the count in SDN controller, There is a possibility of
mismatch in the count between the switch and controller .
Each flow has a timeout(idle and hard), it will be flushed out after the
timeout period.
On Wed, Feb 28, 2018 at 1:59 PM, Moh'd Reza Abbasi <mr.mrabb...@gmail.com>
wrote:
> I don't think OpenFlow v.1.3 has such a feature, but how about adding a
> counter in your Ryu app to keep track of added/removed rules...
>
> On Wed, Feb 28, 2018 at 11:53 AM, Eman Bany salameh via Ryu-devel <
> ryu-devel@lists.sourceforge.net> wrote:
>
>> Hi,
>>
>> I need to know the number of flows installed on the switch before adding
>> new one. What I did before is to request stat from the switch then read the
>> length of the list returned.
>> This way is not useful for me.
>> Is there any way to count them inside packet-in handler before adding new
>> flow? I want to limit the number of flows added to 1500.
>>
>> Regards,
>> Eman Bany Salameh
>>
>>
>>
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