https://getrfc.com/rfc685
RFC0685: Response time in cross network debugging
Free public storage of actual RFC documents.
response timenetwork debuggingcross
https://kernel-internals.org/net/net-debugging/
Network Debugging with ss and ip - Linux Kernel Internals
Documentation about Linux kernel internals, design decisions, and the journey of contributing
network debugginglinux kernelinternals