Here is another link worth taking a look at about Riverbed monitoring SDN/VXLAN environments. http://www.slideshare.net/riverbedtechnology/riverbed-cascade-and-vxlan-monitoring
And for those large organizations that have private MPLS backbones, are there LAN and WAN teams? Can the LAN team see every hop taken within a trace route between two Campus sites? Why was CAPWAP with WLAN never an issue especially with Layer 3 roaming?
Is the bigger challenge about network vs. server admin and point of control/power?
That all said, I really do want to collect data on where people think visibility needs to be better in the world of network virtualization. Please write in, comment, or email.