Re: [ns] Reno and New Reno

[Saulo Vaz de Vasconcellos <vaz@gta.ufrj.br>]

On Fri, 28 Sep 2001, Beatriz Hargrave da Silva wrote:

> (In my code I wrote the following:
> 
> set TCP [new Agent/TCP/NewReno])
> 
> But is works for 
> 
> Reno, TCP/Sack1 ...
> 
> Does anybody know why TCP/NewReno is not implemented in my ns ??

the correct statement, from them man ns seems to be:

    TCP/Newreno           - a modified version of BSD Reno TCP

> 
> 
> Another question:
> 
> Does anybody know what is the real difference  between TCP Reno and TCP
> New Reno ??

Try some simulations with multiple drops from a "single window" of data, 
the difference will became clear.

Try reading Sally Floyd paper: "Simulation-based Comparisons of Tahoe,
Reno, and Sack TCP" for the problems with TCP Reno.

Yours,

    Saulo