Arguably one of the greatest innovations within the Global BGP routing system in the last decade is one that you probably never have to deal with. Continue Reading
BGP
Last weekend – a bank holiday weekend in the UK – saw a rather significant BGP-related disruption on the Internet. Fortunately it didn’t affect the mainstream router vendors, but caused service interruptions for anyone dependent on certain versions of the Quagga routing protocol suite (an open-source collection of routing protocol implementations with a configuration management interface that closely resembles mainstream Cisco routers). Continue reading…
I’ve spent considerable time this week working on a problem caused by accidental and unintentional BGP AS Path prepending. For those not in the know, AS Path prepending is the so-called practice of artificially extending the BGP AS Path attribute associated with one’s Internet routes in order to influence the preference in route selection on foreign networks. Continue reading…
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