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Date: Sun, 8 Dec 2013 15:16:03 -0800
From: Stephen Hemminger <stephen@networkplumber.org>
To: Hal Murray <hmurray@megapathdsl.net>
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Cc: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] curious.....
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On Sun, 08 Dec 2013 12:41:52 -0800
Hal Murray <hmurray@megapathdsl.net> wrote:

> 
> > 	Even at 1000 symmetric I still think it would be a good idea to isolate
> > really latency critical traffic from the rest, even if under normal
> > circumstances there should be no problem, I guess a "better safe than sorry"
> > approach. But, hey I do not do this for a living so I might be on the wrong
> > track here. 
> 
> The problem is who gets to decide what is latency critical and/or how to do 
> it such that the bad-guys can't game the system.
> 
> Has somebody made a list of various interesting cases, and where they break?
> 
> 
> 
> 

That is why Diffserv only makes sense within a trusted domain. Most ISP's just ignore
DSCP.