[BCP197]   Best Current Practice 197,
              <https://www.rfc-editor.org/info/bcp197>.
              At the time of writing, this BCP comprises the following:

              Baker, F., Ed. and G. Fairhurst, Ed., "IETF
              Recommendations Regarding Active Queue Management",
              BCP 197, RFC 7567, DOI 10.17487/RFC7567, July 2015,
              <https://www.rfc-editor.org/info/rfc7567>.