ntp-mac-last-ef Working Directory for IETF NTP MAC-EF and "Last Extension" proposal If you want to see how the document looks when submitted to xml2rfc.tools.ietf.org, just click this link: https://xml2rfc.tools.ietf.org/cgi-bin/xml2rfc.cgi?input=&url=https://raw.githubusercontent.com/hstenn/ntp-mac-last-ef/master/ntp-mac-last-ef.xml&modeAsFormat=txt/ascii&type=toframe&Submit=Submit