Pica8 makes it first steps into network automation in a unique fashion with apps for its PicOS NOS. PicaFabric build a virtual switch chassis from an leaf/spine switch clister. The PicaPilot app builds vitual switch stack for fat tree L2 everywhere campus networks. All this is done with open hardware that you can mix & match.
Link: Show 382: Whitebox In The Enterprise With Pica8 (Sponsored) http://packetpushers.net/podcast/podcasts/show-382-whitebox-enterprise-pica8-sponsored/