[Bismark-devel] about ready to do another build

Srikanth Sundaresan srikanth at gatech.edu
Sat May 21 13:07:22 EDT 2011


> 
> 
> I would urge you strongly to do more realistic testing, with more real users using the network...
> 
> ...before making that call. I am assuming you are unleashing these devices on real users? with more than one person on the network?
> 
> RTT times will probably get even worse than 800ms with multiple streams running. I have not tested that, I'll get to it.

It is unlikely that the RTT will be worse than what they are experiencing now - the size of the pipes mean that the buffers are easily filled with a single TCP connection. But applying the wrong default will have an impact, which could well be noticable. 
> 
> Certainly chats with network operators and cybercafe operators down there will also prove fruitful. 
> 
> If you could exit the hotel and see if you can obtain some information from the real world around you down there about those kinds of usage, (or non-usage) of QoS techniques on their systems...
> 
> you might get some really good coffee and meet some interesting people.

I agree that real information will be good. We don't really have it, which is why  setting a default (based on 2 data points) is not good. The qos-scripts should be tailored to each user.





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