IPv6 is the most recent version of the Internet Protocol (IP), and was developed by IETF to overcome the inevitable exhaustion of IPv4 addresses. In order to simplify the transition towards IPv6, the protocol iterated very little on how IPv4 operates other than offering more address space. This inadvertently produced the exact opposite of the intended effect: with no compelling new features for anyone outside of network engineering, IPv6 deployment has been hampered for decades, as developers find increasingly creative ways of efficiently using IPv4 address space rather than bearing the cost of transition.
In this talk, Fastly Network Engineer João Taveira will discuss these protocol design failures and instead explain how Fastly re-architected its infrastructure around IPv6. By addressing IPv6 in a clean-slate manner, Fastly avoided perpetuating many of the mistakes of IPv4, and the resulting network architecture has the potential to significantly affect the performance, resilience, and economics of content delivery.