Re: [ns] Reno and New Reno

[Merkourios Karaliopoulos <m.karaliopoulos@eim.surrey.ac.uk>]

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

> Hi !
> 
> I�m using ns-2.1b8a and I when I try to stabilish a tcp connection with
> TCP New Reno I get a error saying that TCP New Reno doesn�t exist.
> 
> (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 ??
 
Please try Newreno...
 
> Another question:
> 
> Does anybody know what is the real difference  between TCP Reno and TCP
> New Reno ??
> 
> I read that in TCP NewReno a "Partial ACK do not take TCP out of Fast
> Recovery. TCP remains in Fast Recovery until all of the data outstanding
> when Fast Recovery was initiated has been acknowledged". But what I
> notice from my simulations is that TCP Reno already does that. Can
> somebody help me to understand that ?
> 
> Thanks in advance.
> 
> Beatriz