One interesting thing is that we'll need new tools to diagnose QUIC connection problems. When you're looking at a range of ports used to open a connection betw

One interesting thing is that we'll need new tools to diagnose QUIC connection problems. When you're looking at a range of ports used to open a connection between layer 7 and, due to the pre-negotiated encryption basically layer 3, netcat, nmap, and tcpdump aren't as informative as they were before. I'd love to know how Google has been handling that sort of troubleshooting internally.