Hi,

Thanks Abbasi and Túlio!
I miss-understood that.


> Is *total_capacity = n_table * max_entries* correct?

I guess it is right.
but as Túlio said, it is highly depending on the implementation of your switch.

When I tested a hardware switch before, the throughput of that switch declined 
significantly
around the number of n_table * max_entries.


Thanks,
Iwase

On 2017年02月15日 22:40, Túlio Pascoal wrote:
> Hi Abbasi,
> 
> Actually If you are working with openvswitch It has unlimited flow limit.
> 
> If you are working with a hardware-based SDN switch you have to estimate the 
> limite by getting its TCAM size (usually in MB) and check the size field of 
> your installed flows. So that you can divide these numbers and have a ideia 
> of how many flow rules your switch can support.
> 
> By the way, are you working mainly about flow rule limitations? If so, please 
> contact me by e-mail If you desire as it is part of my master thesis.
> 
> 
> Best Regards,
> 
> 
> Túlio Pascoal
> 
> Em 15 de fev de 2017 10:01, "Moh'd Reza Abbasi" <[email protected] 
> <mailto:[email protected]>> escreveu:
> 
>     Thank you Tulio andIwase, I appreciate your responses
>     Yes Tulio, you are right. I like to know about the total flow-table 
> capacity, the maximum entries that can be inserted into the switch.
> 
>     I came to an understanding that openflow "ofp_switch_features" returns 
> the number of tables (n_tables), and
>     "OFPMP_TABLE_FEATURES" returns the maximum entries that can be inserted 
> into that particular table (max_entries). but how to know the total flow 
> table capacity?
> 
>     Is *total_capacity = n_table * max_entries* correct?
> 
> 
> 
> 
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