[57902] in North American Network Operators' Group
Re: Selfish routing
daemon@ATHENA.MIT.EDU (Stephen J. Wilcox)
Sat Apr 26 13:36:24 2003
Date: Sat, 26 Apr 2003 18:35:13 +0100 (BST)
From: "Stephen J. Wilcox" <steve@telecomplete.co.uk>
To: Petri Helenius <pete@he.iki.fi>
Cc: alex@yuriev.com, <nanog@merit.edu>
In-Reply-To: <017e01c30b67$f4f108c0$932a40c1@PHE>
Errors-To: owner-nanog-outgoing@merit.edu
On Fri, 25 Apr 2003, Petri Helenius wrote:
> > Someone who built a rather good network used to say something along the
> > lines of "You are confused. QoS does not stand for Quality of Service. =
It
> > stands for Quantity of Service. What it means is that you don't have en=
ough
> > capacity so you drop packets on the floor of those who pay you less mon=
ey
> > before dropping on the floor packets of those who pay you more. At the =
end,
> > you still drop packets." Having capacity *always* makes a network bette=
r.
In general I agree here. Although its not always practical to do the necess=
ary=20
upgrades, especially in last mile where costs may be prohibitive.
> While it=B4s general knowledge, it should be pointed out that having capa=
city
> at each and every millisecond is quite different game than having your 5 =
minute
> averages look nice.
I'm not sure it is general knowledge, I explain to someone at least once a =
week=20
that just because youre graph is at 70% doesnt mean you have 30% spare.
Steve
