1.2.1 Normative References
We conduct frequent surveys of the normative references to assure their continued availability. If you have any issue with finding a normative reference, please contact firstname.lastname@example.org. We will assist you in finding the relevant information.
[IANAPORT] IANA, "Port Numbers", November 2006, http://www.iana.org/assignments/port-numbers
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997, http://www.rfc-editor.org/rfc/rfc2119.txt