[BCP114]   Best Current Practice 114,
              <https://www.rfc-editor.org/info/bcp114>.
              At the time of writing, this BCP comprises the following:

              Meyer, D., "BGP Communities for Data Collection", BCP 114,
              RFC 4384, DOI 10.17487/RFC4384, February 2006,
              <https://www.rfc-editor.org/info/rfc4384>.