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August 01, 2001
KEYNOTE NEWS SPECIAL - CODE RED WORM
July 19 Internet Slowdown Was NOT Due To The Worm
We feel it necessary to set straight a rumor that
has been circulating that the July 19 Internet slowdown
was due to the Code Red worm. That is incorrect, and
we are concerned about the dissemination of incorrect
information. According to Keynote's measurements and
expert analysis, the slowdown on July 19 was very clearly
due to the train wreck and resulting fire in the Baltimore
tunnel (see our report on this incident dated July
19, which can still be found at http://www.keynote.com/downloads/baltimore_train-071901.doc),
and cannot be attributed to the worm. The evidence
and logic show that:
1. The resulting backbone slowdown was specific to
those backbones with high-speed connections running
through the tunnel, including the peering relationships
of those backbones with others, and the peering connections
were concentrated on the East Coast. If the slowdown
had been due to the worm, it would not have been selective
as to backbones and geography but would have affected
all backbones and the Internet as a whole, across geographical
boundaries. Evidence of this effect was found on Keynote's
Internet Health Report (www.internetpulse.com), that
tracks backbone peering performance in multiple geographic
locations.
2. There was no exponential ramp-up of performance
degradation during the day or preceding days that would
have coincided with the proliferation of the worm,
but a sudden spike in performance that coincided with
the time of the train wreck.
3. Consider: If the worm had such a dramatic effect
on the Internet on July 19, why hasn't it had a similar
effect now, when it is much more widespread now than
it was then? We have seen no effect on performance
over the past couple of days.
As reported previously, Keynote has not seen any effect
of the Code Red worm on Internet performance during
the month of July.
UPDATES
- Code
Red Worm's Impact on Internet Performance, August
7, 2001, 3:00pm PDT
- Code
Red Worm's Impact on Internet Performance, August
6, 2001, 4:00pm PDT
- Code
Red Worm's Impact on Internet Performance, August
3, 2001, 3:00pm PDT
- How
Much Worm Traffic Will It Take To Affect Internet
Performance, August 02, 2001, 5:00pm PDT
- Code
Red Worm's Impact on Internet Performance, August
1, 2001, 4:00pm PDT
- Code
Red Worm's Impact on Internet Performance, July
31, 2001, 8:00pm PDT
- Code
Red Worm's Impact on Internet Performance, July
31, 2001, 5:30pm PDT
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