It's never a good sign when the regular press reports about BGP-related issues, such as last week: Browsing speeds may slow as net hardware bug bites (BBC). The problem is that the BGP table has started to hit the 512k FIB limit in some older routers. Numerous outages and slowdowns were reported to be caused by this, but it's unclear to which degree that's accurate.
Read the article - posted 2014-08-19