It’s become an increasingly familiar story: A small ISP somewhere makes an error in its Internet routing announcements, triggering chaotic events like the IP “hijacking” of YouTube in 2008 and an incident in February that caused outages at major hosting providers. It happened again last week, according to Renesys , which reports that an incorrect BGP announcement by a small ISP in Nagoya, Japan triggered a wave of errant updates. This ripple effect was related to a weakness in updated code for a version of Cisco’s IOS operating system for routers. Cisco promptly posted a security advisory and patch. The incident prompted commentary from James Cowie of Renesys on the potential for future trouble due to software updates. “The global mesh of BGP-speaking routers that we call the Internet has inherent vulnerabilities that stem from the software quality and policy weaknesses of its weakest participants, and the amplification potential of its best-connected participants,” Cowie wrote on the Renesys blog
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Facebook, Amazon and Google are all decoupling their systems from proprietary hardware. The extreme scale of their data storage makes it necessary to strip away anything that isn’t absolutely necessary for storing and recalling petabytes or exabytes of data safely and efficiently.