I think Cisco Secure Network Analytics is quite good when it comes to securing infrastructure from end-to-end. This is particularly the case when you are deploying something like the Cisco SD-WAN solution where you've got your controlling data plane. Cisco has thought about this, going back to the encrypted traffic analysis, your Cisco controlling data plane won't stand up unless they're encrypted. Unless I want a man-in-the-middle, which causes other issues, I deploy Stealthwatch. Stealthwatch has that encrypted traffic analysis. I think it's really well thought through.