:description">
                  <p>All assertions, diagrams, examples, and notes are non-normative, as are all sections explicitly marked non-normative. Everything else is normative.</p>

                  <p>The key words “MUST” and “MUST NOT” are to be interpreted as described in <cite><a href="https://tools.ietf.org/html/bcp14" rel="rdfs:seeAlso">BCP 14</a></cite> [<cite><a class="bibref" href="#bib-rfc2119">RFC2119</a></cite>] [<cite><a class="bibref" href="#bib-rfc8174">RFC8174</a></cite>] whe