Re: [rmcat] test cases for coupled cc [was: Re: Review of draft-ietf-rmcat-eval-test-02]

[Michael Welzl <[e-mail]>]

Hi,

My 2 cents about one bit here, cutting away the rest:


> On 16. feb. 2016, at 02.14, Zaheduzzaman Sarker <[e-mail]> wrote:
> (..)
> On 02/10/2016 03:36 PM, Safiqul Islam wrote:
(..)


>> Without making it compulsory, I suggested to add these in the other cases. We can perhaps say: 
>> 
>> “When flows share a common bottleneck, combining their congestion controllers can be beneficial. 
>> These additional test cases can be used to evaluate a congestion control mechanism when using a method to couple flows, such as [I-D.ietf-rmcat-coupled-cc]."
>> 
>> Does this put it better?
> I dont think this document to referent to any candidate solution.
> 
> I think the test cases should be defined so that one can evaluate other alternatives if there is any. Now, if there is more than one coupled CC solution and the candidate algorithms perform differently with different solution, how that will help us to evaluate coupled Congestion control algorithms. How does the WG plans to solve such situation?

The sentence Safiqul proposed mentions the coupled-cc draft as an example - not more, not less. Remove it if you want, and nothing has changed: this isn’t about evaluating coupled CC. algorithms, it’s about evaluating how congestion control algorithms work when they are combined with a method to couple them. It’s not mandatory either - but if you want to test how e.g. SCReAM operates when coupled, these test cases probable make sense. That’s all this says.

Cheers,
Michael