Ethical DDoS drone network
Edward B. DREGER
eddy+public+spam at noc.everquick.net
Tue Jan 6 19:40:13 CST 2009
RD> Date: Wed, 7 Jan 2009 08:50:46 +0800
RD> From: Roland Dobbins
RD> > I've seen _many_ routing problems appear in large WANs that simply
RD> > can't be replicated with fewer than a hundred or even a thousand
RD> > routers.
RD> Users can simulate many of these conditions themselves using various
many != all
It appears to be a question of what incremental benefit does one gain
from real-world testing?
RD> open-source and commercial tools, which've been available for many
I think that everyone agrees: No live testing until "adequate" lab
testing has been performed. The disagreement seems to be over when/if
live testing is necessary, and how much.
Because it just wouldn't be a NANOG thread without analogies *grin*, I
offer the following: drug certification, aircraft certification,
automobile crash testing, database benchmarking.
Even when a system is highly deterministic, such as a database, one
still expects _real-world_ testing. Traffic flows on large networks are
highly stochastic... and this includes OPNs, which I posit are futile to
attempt to model.
RD> And again, it comes back to understanding the performance envelope
RD> of one's equipment, even without simulation.
Very true. If one deploys an OSPF-happy network thinking that it scales
O(n), one is in for a rude shock.
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