Tic-Tech: Yesterday's Internet Outage - More Information

From: McNamee, Judy (JMCNAMEE@seattleschools.org)
Date: Fri Oct 05 2001 - 08:42:08 PDT

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    --- TIC-TECH message:
    The Washington State K-20 Network has provided us with an explanation of
    yesterday's Internet outage, for those who are interested.

    The Washington State K-20 Network links together all Washington K-12 school
    districts, community colleges, and 4-year colleges. It is the means by which
    the Seattle Schools network connects to the Internet.

    Yesterday morning, one of the colleges was having problems sending and
    receiving information. In an effort to resolve the problem, K-20 Network
    technicians made a configuration change to the router serving that college.
    There was an error in the configuration that resulted in sending incorrect
    information to all the other routers on the K-20 Network. The result was
    that no one on the K-20 Network could reach the Internet until the
    configuration error was fixed.

    (For those interested in the technical explanation, K-20 placed static
    routes in the college router and inadvertently allowed the router to
    broadcast those static routes. Since static routes take precedence, all the
    K-20 routers began using the routes that were intended only for this one
    college.)

    Thanks,
    Judy

    ------------------------------------------------------
    Judy McNamee
    Manager, Computer Operations
    Seattle Public Schools
    Voice: 206-252-0306
    Fax: 206-252-0301
    jmcnamee@seattleschools.org
    -------------------------------------------------------

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