Nebula was coupled with hardware that included a bundled Arista switch [1]. The hardware provided additional security features. (TPM etc.) So it might be hard t

Nebula was coupled with hardware that included a bundled Arista switch [1]. The hardware provided additional security features. (TPM etc.) So it might be hard to switch to another Openstack vendor from a stack so tightly bound to hardware. 1. http://www.theregister.co.uk/Print/2011/07/27/nebula_openstack_cloud_controller/ http://www.theregister.co.uk/Print/2011/07/27/nebula_opensta...