Re: [re-ECN] contribution to congestion = congestion-volume

> -----Original Message-----
> From: Briscoe,RJ,Bob,XVR9 BRISCORJ R
> Sent: 06 October 2009 10:27
> To: Moncaster,T,Toby,DEE1 R
> Cc: re-ecn@ietf.org
> Subject: RE: [re-ECN] contribution to congestion = congestion-volume
> 
> Toby,
> 
> At 09:46 06/10/2009, toby.moncaster@bt.com wrote:
> >I quite like "contribution to congestion", but it would be nice to
> make
> >it clearer that this is something that can actually be measured.
> 
> That could be done in supporting sentences - e.g. just saying
> "contribution to congestion" can be measured as congestion-volume.
> 
> >I would
> >also like somewhere to get across to people that this is something
> that
> >impacts everyone on the network, sort of "impact on others".
> 
> Well, not everyone on the network, just everyone experiencing
> congestion. Again that can be said in supporting words.
> 
> Commonly people talk about "a network being congested". We need to
> explain that rarely happens. That's like saying a country's whole
> road system is congested.

So we need to start talking about "experiencing congestion" or
"experiencing periods of congestion". And in fact borrowing from another
post on the list, you want there to be just enough congestion in the
network to allow you to bump along the edge of the cliff where things
are most optimal for both user and provider...

> 
> 
> Bob
> 
> 
> >The one thing I am very keen to avoid is equating this to CO2 since
> the
> >whole point of congestion is that it is transitory - once the traffic
> >goes so does the congestion...
> 
> Understood.
> 
> 
> Bob
> 
> 
> >Toby
> >
> > > -----Original Message-----
> > > From: re-ecn-bounces@ietf.org [mailto:re-ecn-bounces@ietf.org] On
> > > Behalf Of Bob Briscoe
> > > Sent: 01 October 2009 11:13
> > > To: re-ECN unIETF list
> > > Subject: [re-ECN] contribution to congestion = congestion-volume
> > >
> > > Folks,
> > >
> > > How about this for useful non-technical phrase for congestion-
> volume
> > > that encapsulates its meaning: "contribution to congestion".
> > >
> > > The subject of the sentence needs to be included to disambiguate
> it,
> > > but it can be used for either of the dual uses of congestion-
> volume:
> > > - too much traffic: app, user, customer, site or network from
which
> > > traffic arrives;
> > > - too little capacity: link or network in which congestion occurs.
> > > And the duration over which it is measured needs to be given.
> > >
> > > It's important to distinguish congestion [%] from contribution to
> > > congestion [byte], not least because they have different units.
> > >
> > > Thoughts?
> > >
> > >
> > > Bob
> > >
> > >
> > >
> > > ________________________________________________________________
> > > Bob Briscoe,                                BT Innovate & Design
> > >
> > > _______________________________________________
> > > re-ECN mailing list
> > > re-ECN@ietf.org
> > > https://www.ietf.org/mailman/listinfo/re-ecn
> 
> ________________________________________________________________
> Bob Briscoe,                                BT Innovate & Design