Cascading Failures Could Crash the Global Internet
David Barak
thegameiam at yahoo.com
Sun Feb 9 04:36:15 UTC 2003
--- "Stewart, William C (Bill), SALES"
<billstewart at att.com> wrote:
> If what's failing is an overload of BGP routes or
> something,
> that's different - and sometimes the load on the
> system shrinks
> as components fail, but sometimes that just makes
> everything
> flap all at once, increasing load and delaying
> convergence.
I seem to recall a massive routing failure in October
which was caused by BGP getting imported to a major
ISPs IGP...
The core ${VENDOR 1}routers were able to handle the
influx of routes, but the edge ${VENDOR 2} routers
could not handle the influx - so the failure didn't
exactly cascade, but did more of a ripple. However,
the reloading of all of the edge devices increased the
BGP instability.
-David Barak
-fully RFC 1925 compliant-
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