RE: types of traffic in tcp congest control

["Douglas Otis" <[e-mail]>]

J Wu,

A given number of Mice may consume the network and reduce effective use of
Elephants even with  Dense Wavelength Division Multiplexing in the mix.

With TCP framing where small objects are aligned with the segment at high
rates, would this be  Mice or Rats? : )

 -Doug

On May 13, 2002 8:48 AM J Wu ([e-mail]) wrote:
>
> On Sun, 12 May 2002, Joe Touch wrote:
>
> > J Wu wrote:
> > > Hi Li,
> > ...
> > >
> > > As my understanding of S.Low's paper that the mice stands for
> > > small scale transmition with delay sensitive and the elephant
> > > stands for large scale transmition. The small scale
> > > transmitions will not cause any congestion, but the large
> > > scale transmitions will.
> >
> > That is an assumption, one which other results, notably of bandwidth
> > limited highly-shared core links (e.g., the US-UK link) refute. They
> > indicate that mice can indeed cause congestion amongst themselves, even
> > in the absence of elephants.
> >
> > Joe
>
> Hi Joe,
> Well, if only the mice can still congest the link, which shows that the
> network resources are under severe shortage. The only way to solve under
> this situation is hardware solution. But I think even under this situation
> restrict the elephants will also do benefit to alleviate the stage of
> congestion.
>
> And also, it seems that most network congestions are take place at access
> network which is not the core network.
>
>
> Another question maybe far from this topic: As the invent of new core
> transmission techniques like DWDM, is congestion control still needed in
> core network?
>
> --
> Jin Wu
> School of Computing,
> University of Leeds.
> Tel: [phone]
>
>