Linux TCP implementation

[Diwaker Gupta]

Maybe this question has already been burnt to death, but I wasn't able 
to find an answer on the archives or on the FAQ. So here goes:

I was just reading about the various TCP implementation -- Reno, Tahoe 
and Vegas in particular -- and I was wondering about the TCP 
implementation in Linux. AFAIK (and from looking at the source code), it 
seems current kernels are using a tweaked version of Reno. I'm also 
aware that at some point of time (2.1.x?) Vegas was introduced into the 
mainstream kernels, but then withdrawn.

I want to gather the LKML readers' thoughts on this -- to me it seems 
that TCP Vegas in superior to Reno in almost all ways, and will really 
help to bring down network congestion substantially if a large number of 
senders begin to use it (read "if introduced in the mainstream kernel"). 
The question then is, why is TCP Vegas not here yet? And are there any 
plans to incorporate it in the future?

--
Diwaker Gupta
Graduate Student, Computer Sc. and Engg.
University of California, San Diego
<http://www.cs.ucsd.edu/~dgupta>
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