I wouldn't characterize us as "anti-SDN", instead I would say that Cumulus Linux is not an SDN solution by itself. We work closely with all the major SDN vendo

I wouldn't characterize us as "anti-SDN", instead I would say that Cumulus Linux is not an SDN solution by itself. We work closely with all the major SDN vendors for use-cases that are virtualization-centric or cloud-centric. That said, there are use-cases like Hadoop clusters that have very little need for an SDN layer, just very fast L3 IP connectivity.