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MAPPING-CYBERSPACE  August 2003

MAPPING-CYBERSPACE August 2003

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Subject:

Blackout and Geographic Network failures in US(fwd)

From:

martin dodge <[log in to unmask]>

Reply-To:

Mapping and visualising Internet infrastructure and Web space <[log in to unmask]>

Date:

Thu, 28 Aug 2003 15:58:43 +0100

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (16 lines)

FYI
Blackout Results in Widespread Network Outages
Thursday, August 14, 2003

http://www.renesys.com/news/

Summary
Widespread power outages in the northeastern U.S. starting on August 14
resulted in corresponding loss of reachability to several portions of the
Internet. Backbone networks remained intact using emergency backup power
supplies, but many regional networks went offline. The event is can be
clearly observed in global routing table size changes, and an evolving
geographical timeline of network outages highlights the coverage of the
blackout. The route withdrawal timeseries themselves also reveal the
effects that the event had on global routing.

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