[e2e] Are we doing sliding window in the Internet?

[Detlef Bosau]

rick jones wrote:
> earlier someone wrote:
>
> > I would even go so far as to suggest that we should drop ACKs which 
> do not
> > fall on packetization boundaries.
>
> that suggests one is tracking segmentation boundaries, in which case 
> wouldn't one be using conservation of packets heuristics rather than 
> conservation of bytes heuristics - packet counting rather than byte 
> counting?
>
To my understanding, we do so anyway.

AFAIK we use a scoreboard in Reno to track acknowledged _bytes_, we 
calculate windows in _bytes_, except of course the NS2 and following 
some rumour, i.e. I didn´t check it, in Linux.