SDN Internet Router – Part 2

This post details the second part of Spotify's journey in building an SDN Internet Router. It elaborates on the initial challenges of using expensive, power-hungry traditional routers, the hypothesis that traffic analysis could enable the use of cheaper switches, and the stages of development. This includes proving the hypothesis with pmacct and SIR, designing a prototype using Selective Route Download (SRD) and OpenFlow, choosing hardware, and overcoming roadblocks like vendor BGP implementation issues and large prefix list handling. The post highlights the refactoring of SIR into a peering management and route optimization tool and the development of 'Super Smash BroGP' for stress testing.