More AS4_PATH Triggered Global Routing Instability
March 18, 2009 by Danny McPhersonFor those of you not paying attention, a slew of new instabilities in the global routing system are occurring – again. These are presumably being tickled by another ugly AS4_PATH tunnel bug where someone [read: broken implementation] erroneously includes AS_CONFED_* segments in an AS4_PATH attribute – a transitive optional BGP attribute that’s essentially ‘tunneled’ between [...]