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Oct 1, 2012, 1:04:11 AM (7 years ago)
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julian.reschke@…
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bump up document dates

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  • draft-ietf-httpbis/latest/p1-messaging.html

    r1919 r1924  
    440440  }
    441441  @top-right {
    442        content: "September 2012";
     442       content: "October 2012";
    443443  }
    444444  @top-center {
     
    449449  }
    450450  @bottom-center {
    451        content: "Expires April 3, 2013";
     451       content: "Expires April 4, 2013";
    452452  }
    453453  @bottom-right {
     
    491491      <meta name="dct.creator" content="Reschke, J. F.">
    492492      <meta name="dct.identifier" content="urn:ietf:id:draft-ietf-httpbis-p1-messaging-latest">
    493       <meta name="dct.issued" scheme="ISO8601" content="2012-09-30">
     493      <meta name="dct.issued" scheme="ISO8601" content="2012-10-01">
    494494      <meta name="dct.replaces" content="urn:ietf:rfc:2145">
    495495      <meta name="dct.replaces" content="urn:ietf:rfc:2616">
     
    520520            <tr>
    521521               <td class="left">Intended status: Standards Track</td>
    522                <td class="right">September 30, 2012</td>
     522               <td class="right">October 1, 2012</td>
    523523            </tr>
    524524            <tr>
    525                <td class="left">Expires: April 3, 2013</td>
     525               <td class="left">Expires: April 4, 2013</td>
    526526               <td class="right"></td>
    527527            </tr>
     
    551551         in progress”.
    552552      </p>
    553       <p>This Internet-Draft will expire on April 3, 2013.</p>
     553      <p>This Internet-Draft will expire on April 4, 2013.</p>
    554554      <h1><a id="rfc.copyrightnotice" href="#rfc.copyrightnotice">Copyright Notice</a></h1>
    555555      <p>Copyright © 2012 IETF Trust and the persons identified as the document authors. All rights reserved.</p>
     
    902902         or an intranet-to-Internet privacy filter. Such transformations are presumed to be desired by the client (or client organization)
    903903         that selected the proxy and are beyond the scope of this specification. However, when a proxy is not intended to transform
    904          a given message, we use the term "<dfn>non-transforming proxy</dfn>" to target requirements that preserve HTTP message semantics. See <a href="p2-semantics.html#status.203" title="203 Non-Authoritative Information">Section 6.3.4</a> of <a href="#Part2" id="rfc.xref.Part2.3"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> and <a href="p6-cache.html#header.warning" title="Warning">Section 7.5</a> of <a href="#Part6" id="rfc.xref.Part6.2"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Caching">[Part6]</cite></a> for status and warning codes related to transformations.
     904         a given message, we use the term "<dfn>non-transforming proxy</dfn>" to target requirements that preserve HTTP message semantics. See <a href="p2-semantics.html#status.203" title="203 Non-Authoritative Information">Section 7.3.4</a> of <a href="#Part2" id="rfc.xref.Part2.3"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> and <a href="p6-cache.html#header.warning" title="Warning">Section 7.5</a> of <a href="#Part6" id="rfc.xref.Part6.2"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Caching">[Part6]</cite></a> for status and warning codes related to transformations.
    905905      </p>
    906906      <p id="rfc.section.2.3.p.7"><span id="rfc.iref.g.13"></span><span id="rfc.iref.r.4"></span>  <span id="rfc.iref.a.1"></span> A "<dfn>gateway</dfn>" (a.k.a., "<dfn>reverse proxy</dfn>") is a receiving agent that acts as a layer above some other server(s) and translates the received requests to the underlying
     
    10721072      </p>
    10731073      <p id="rfc.section.2.7.1.p.6">When an "http" URI is used within a context that calls for access to the indicated resource, a client <em class="bcp14">MAY</em> attempt access by resolving the host to an IP address, establishing a TCP connection to that address on the indicated port,
    1074          and sending an HTTP request message (<a href="#http.message" title="Message Format">Section&nbsp;3</a>) containing the URI's identifying data (<a href="#message.routing" title="Message Routing">Section&nbsp;5</a>) to the server. If the server responds to that request with a non-interim HTTP response message, as described in <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 6</a> of <a href="#Part2" id="rfc.xref.Part2.5"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, then that response is considered an authoritative answer to the client's request.
     1074         and sending an HTTP request message (<a href="#http.message" title="Message Format">Section&nbsp;3</a>) containing the URI's identifying data (<a href="#message.routing" title="Message Routing">Section&nbsp;5</a>) to the server. If the server responds to that request with a non-interim HTTP response message, as described in <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 7</a> of <a href="#Part2" id="rfc.xref.Part2.5"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, then that response is considered an authoritative answer to the client's request.
    10751075      </p>
    10761076      <p id="rfc.section.2.7.1.p.7">Although HTTP is independent of the transport protocol, the "http" scheme is specific to TCP-based services because the name
     
    11701170      </div>
    11711171      <div id="rfc.figure.u.14"></div><pre class="inline"><span id="rfc.iref.g.29"></span>  <a href="#method" class="smpl">method</a>         = <a href="#rule.token.separators" class="smpl">token</a>
    1172 </pre><p id="rfc.section.3.1.1.p.6">The methods defined by this specification can be found in <a href="p2-semantics.html#methods" title="Request Methods">Section 4</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, along with information regarding the HTTP method registry and considerations for defining new methods.
     1172</pre><p id="rfc.section.3.1.1.p.6">The methods defined by this specification can be found in <a href="p2-semantics.html#methods" title="Request Methods">Section 5</a> of <a href="#Part2" id="rfc.xref.Part2.6"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>, along with information regarding the HTTP method registry and considerations for defining new methods.
    11731173      </p>
    11741174      <div id="rfc.iref.r.6"></div>
     
    11831183      </p>
    11841184      <p id="rfc.section.3.1.1.p.10">HTTP does not place a pre-defined limit on the length of a request-line. A server that receives a method longer than any that
    1185          it implements <em class="bcp14">SHOULD</em> respond with either a <a href="p2-semantics.html#status.405" class="smpl">405 (Method Not Allowed)</a>, if it is an origin server, or a <a href="p2-semantics.html#status.501" class="smpl">501 (Not Implemented)</a> status code. A server <em class="bcp14">MUST</em> be prepared to receive URIs of unbounded length and respond with the <a href="p2-semantics.html#status.414" class="smpl">414 (URI Too Long)</a> status code if the received request-target would be longer than the server wishes to handle (see <a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 6.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.7"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     1185         it implements <em class="bcp14">SHOULD</em> respond with either a <a href="p2-semantics.html#status.405" class="smpl">405 (Method Not Allowed)</a>, if it is an origin server, or a <a href="p2-semantics.html#status.501" class="smpl">501 (Not Implemented)</a> status code. A server <em class="bcp14">MUST</em> be prepared to receive URIs of unbounded length and respond with the <a href="p2-semantics.html#status.414" class="smpl">414 (URI Too Long)</a> status code if the received request-target would be longer than the server wishes to handle (see <a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 7.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.7"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    11861186      </p>
    11871187      <p id="rfc.section.3.1.1.p.11">Various ad-hoc limitations on request-line length are found in practice. It is <em class="bcp14">RECOMMENDED</em> that all HTTP senders and recipients support, at a minimum, request-line lengths of up to 8000 octets.
     
    11961196      <p id="rfc.section.3.1.2.p.4">The status-code element is a 3-digit integer code describing the result of the server's attempt to understand and satisfy
    11971197         the client's corresponding request. The rest of the response message is to be interpreted in light of the semantics defined
    1198          for that status code. See <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 6</a> of <a href="#Part2" id="rfc.xref.Part2.8"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> for information about the semantics of status codes, including the classes of status code (indicated by the first digit),
     1198         for that status code. See <a href="p2-semantics.html#status.codes" title="Response Status Codes">Section 7</a> of <a href="#Part2" id="rfc.xref.Part2.8"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> for information about the semantics of status codes, including the classes of status code (indicated by the first digit),
    11991199         the status codes defined by this specification, considerations for the definition of new status codes, and the IANA registry.
    12001200      </p>
     
    12171217                 ; see <a href="#field.parsing" title="Field Parsing">Section&nbsp;3.2.2</a>
    12181218</pre><p id="rfc.section.3.2.p.3">The field-name token labels the corresponding field-value as having the semantics defined by that header field. For example,
    1219          the <a href="p2-semantics.html#header.date" class="smpl">Date</a> header field is defined in <a href="p2-semantics.html#header.date" title="Date">Section 7.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.9"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> as containing the origination timestamp for the message in which it appears.
     1219         the <a href="p2-semantics.html#header.date" class="smpl">Date</a> header field is defined in <a href="p2-semantics.html#header.date" title="Date">Section 8.1.1.2</a> of <a href="#Part2" id="rfc.xref.Part2.9"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a> as containing the origination timestamp for the message in which it appears.
    12201220      </p>
    12211221      <p id="rfc.section.3.2.p.4">HTTP header fields are fully extensible: there is no limit on the introduction of new field names, each presumably defining
     
    13511351      </p>
    13521352      <p id="rfc.section.3.3.p.5">The presence of a message body in a response depends on both the request method to which it is responding and the response
    1353          status code (<a href="#status.line" title="Status Line">Section&nbsp;3.1.2</a>). Responses to the HEAD request method never include a message body because the associated response header fields (e.g., <a href="#header.transfer-encoding" class="smpl">Transfer-Encoding</a>, <a href="#header.content-length" class="smpl">Content-Length</a>, etc.), if present, indicate only what their values would have been if the request method had been GET (<a href="p2-semantics.html#HEAD" title="HEAD">Section 4.3.2</a> of <a href="#Part2" id="rfc.xref.Part2.11"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). <a href="p2-semantics.html#status.2xx" class="smpl">2xx (Successful)</a> responses to CONNECT switch to tunnel mode instead of having a message body (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 4.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.12"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). All <a href="p2-semantics.html#status.1xx" class="smpl">1xx (Informational)</a>, <a href="p2-semantics.html#status.204" class="smpl">204 (No Content)</a>, and <a href="p4-conditional.html#status.304" class="smpl">304 (Not Modified)</a> responses <em class="bcp14">MUST NOT</em> include a message body. All other responses do include a message body, although the body <em class="bcp14">MAY</em> be of zero length.
     1353         status code (<a href="#status.line" title="Status Line">Section&nbsp;3.1.2</a>). Responses to the HEAD request method never include a message body because the associated response header fields (e.g., <a href="#header.transfer-encoding" class="smpl">Transfer-Encoding</a>, <a href="#header.content-length" class="smpl">Content-Length</a>, etc.), if present, indicate only what their values would have been if the request method had been GET (<a href="p2-semantics.html#HEAD" title="HEAD">Section 5.3.2</a> of <a href="#Part2" id="rfc.xref.Part2.11"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). <a href="p2-semantics.html#status.2xx" class="smpl">2xx (Successful)</a> responses to CONNECT switch to tunnel mode instead of having a message body (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 5.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.12"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). All <a href="p2-semantics.html#status.1xx" class="smpl">1xx (Informational)</a>, <a href="p2-semantics.html#status.204" class="smpl">204 (No Content)</a>, and <a href="p4-conditional.html#status.304" class="smpl">304 (Not Modified)</a> responses <em class="bcp14">MUST NOT</em> include a message body. All other responses do include a message body, although the body <em class="bcp14">MAY</em> be of zero length.
    13541354      </p>
    13551355      <div id="rfc.iref.t.4"></div>
     
    13761376      <p id="rfc.section.3.3.1.p.6">If more than one Transfer-Encoding header field is present in a message, the multiple field-values <em class="bcp14">MUST</em> be combined into one field-value, according to the algorithm defined in <a href="#header.fields" title="Header Fields">Section&nbsp;3.2</a>, before determining the message body length.
    13771377      </p>
    1378       <p id="rfc.section.3.3.1.p.7">Unlike <a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 8.4</a> of <a href="#Part2" id="rfc.xref.Part2.13"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>), Transfer-Encoding is a property of the message, not of the payload, and thus <em class="bcp14">MAY</em> be added or removed by any implementation along the request/response chain. Additional information about the encoding parameters <em class="bcp14">MAY</em> be provided by other header fields not defined by this specification.
     1378      <p id="rfc.section.3.3.1.p.7">Unlike <a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 3.1.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.13"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>), Transfer-Encoding is a property of the message, not of the payload, and thus <em class="bcp14">MAY</em> be added or removed by any implementation along the request/response chain. Additional information about the encoding parameters <em class="bcp14">MAY</em> be provided by other header fields not defined by this specification.
    13791379      </p>
    13801380      <p id="rfc.section.3.3.1.p.8">Transfer-Encoding <em class="bcp14">MAY</em> be sent in a response to a HEAD request or in a <a href="p4-conditional.html#status.304" class="smpl">304 (Not Modified)</a> response (<a href="p4-conditional.html#status.304" title="304 Not Modified">Section 4.1</a> of <a href="#Part4" id="rfc.xref.Part4.2"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests">[Part4]</cite></a>) to a GET request, neither of which includes a message body, to indicate that the origin server would have applied a transfer
     
    13981398</pre><p id="rfc.section.3.3.2.p.5">A sender <em class="bcp14">MUST NOT</em> send a Content-Length header field in any message that contains a <a href="#header.transfer-encoding" class="smpl">Transfer-Encoding</a> header field.
    13991399      </p>
    1400       <p id="rfc.section.3.3.2.p.6">A server <em class="bcp14">MAY</em> send a Content-Length header field in a response to a HEAD request (<a href="p2-semantics.html#HEAD" title="HEAD">Section 4.3.2</a> of <a href="#Part2" id="rfc.xref.Part2.14"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>); a server <em class="bcp14">MUST NOT</em> send Content-Length in such a response unless its field-value equals the decimal number of octets that would have been sent
     1400      <p id="rfc.section.3.3.2.p.6">A server <em class="bcp14">MAY</em> send a Content-Length header field in a response to a HEAD request (<a href="p2-semantics.html#HEAD" title="HEAD">Section 5.3.2</a> of <a href="#Part2" id="rfc.xref.Part2.14"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>); a server <em class="bcp14">MUST NOT</em> send Content-Length in such a response unless its field-value equals the decimal number of octets that would have been sent
    14011401         in the payload body of a response if the same request had used the GET method.
    14021402      </p>
     
    14041404         in the payload body of a <a href="p2-semantics.html#status.200" class="smpl">200 (OK)</a> response to the same request.
    14051405      </p>
    1406       <p id="rfc.section.3.3.2.p.8">A server <em class="bcp14">MUST NOT</em> send a Content-Length header field in any response with a status code of <a href="p2-semantics.html#status.1xx" class="smpl">1xx (Informational)</a> or <a href="p2-semantics.html#status.204" class="smpl">204 (No Content)</a>. A server <em class="bcp14">SHOULD NOT</em> send a Content-Length header field in any <a href="p2-semantics.html#status.2xx" class="smpl">2xx (Successful)</a> response to a CONNECT request (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 4.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.15"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     1406      <p id="rfc.section.3.3.2.p.8">A server <em class="bcp14">MUST NOT</em> send a Content-Length header field in any response with a status code of <a href="p2-semantics.html#status.1xx" class="smpl">1xx (Informational)</a> or <a href="p2-semantics.html#status.204" class="smpl">204 (No Content)</a>. A server <em class="bcp14">SHOULD NOT</em> send a Content-Length header field in any <a href="p2-semantics.html#status.2xx" class="smpl">2xx (Successful)</a> response to a CONNECT request (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 5.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.15"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    14071407      </p>
    14081408      <p id="rfc.section.3.3.2.p.9">Any Content-Length field value greater than or equal to zero is valid. Since there is no predefined limit to the length of
     
    16561656      </p>
    16571657      <p id="rfc.section.4.3.p.7">When multiple transfer-codings are acceptable, the client <em class="bcp14">MAY</em> rank the codings by preference using a case-insensitive "q" parameter (similar to the qvalues used in content negotiation
    1658          fields, <a href="p2-semantics.html#quality.values" title="Quality Values">Section 5.3.1</a> of <a href="#Part2" id="rfc.xref.Part2.16"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). The rank value is a real number in the range 0 through 1, where 0.001 is the least preferred and 1 is the most preferred;
     1658         fields, <a href="p2-semantics.html#quality.values" title="Quality Values">Section 6.3.1</a> of <a href="#Part2" id="rfc.xref.Part2.16"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). The rank value is a real number in the range 0 through 1, where 0.001 is the least preferred and 1 is the most preferred;
    16591659         a value of 0 means "not acceptable".
    16601660      </p>
     
    17361736      </p>
    17371737      <div id="authority-form">
    1738          <p id="rfc.section.5.3.p.13"><span id="rfc.iref.a.3"></span> The authority-form of request-target is only used for CONNECT requests (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 4.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.18"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When making a CONNECT request to establish a tunnel through one or more proxies, a client <em class="bcp14">MUST</em> send only the target URI's authority component (excluding any userinfo) as the request-target. For example,
     1738         <p id="rfc.section.5.3.p.13"><span id="rfc.iref.a.3"></span> The authority-form of request-target is only used for CONNECT requests (<a href="p2-semantics.html#CONNECT" title="CONNECT">Section 5.3.6</a> of <a href="#Part2" id="rfc.xref.Part2.18"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When making a CONNECT request to establish a tunnel through one or more proxies, a client <em class="bcp14">MUST</em> send only the target URI's authority component (excluding any userinfo) as the request-target. For example,
    17391739         </p>
    17401740      </div>
    17411741      <div id="rfc.figure.u.41"></div><pre class="text2">CONNECT www.example.com:80 HTTP/1.1
    17421742</pre><div id="asterisk-form">
    1743          <p id="rfc.section.5.3.p.15"><span id="rfc.iref.a.4"></span> The asterisk-form of request-target is only used for a server-wide OPTIONS request (<a href="p2-semantics.html#OPTIONS" title="OPTIONS">Section 4.3.7</a> of <a href="#Part2" id="rfc.xref.Part2.19"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When a client wishes to request OPTIONS for the server as a whole, as opposed to a specific named resource of that server,
     1743         <p id="rfc.section.5.3.p.15"><span id="rfc.iref.a.4"></span> The asterisk-form of request-target is only used for a server-wide OPTIONS request (<a href="p2-semantics.html#OPTIONS" title="OPTIONS">Section 5.3.7</a> of <a href="#Part2" id="rfc.xref.Part2.19"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). When a client wishes to request OPTIONS for the server as a whole, as opposed to a specific named resource of that server,
    17441744            the client <em class="bcp14">MUST</em> send only "*" (%x2A) as the request-target. For example,
    17451745         </p>
     
    18771877         except as noted above to replace an empty path with "/" or "*".
    18781878      </p>
    1879       <p id="rfc.section.5.8.p.3">A non-transforming proxy <em class="bcp14">MUST</em> preserve the message payload (<a href="p2-semantics.html#payload" title="Message Payload">Section 3.4</a> of <a href="#Part2" id="rfc.xref.Part2.20"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>), though it <em class="bcp14">MAY</em> change the message body through application or removal of a transfer-coding (<a href="#transfer.codings" title="Transfer Codings">Section&nbsp;4</a>).
     1879      <p id="rfc.section.5.8.p.3">A non-transforming proxy <em class="bcp14">MUST</em> preserve the message payload (<a href="p2-semantics.html#payload" title="Payload Semantics">Section 3.3</a> of <a href="#Part2" id="rfc.xref.Part2.20"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>), though it <em class="bcp14">MAY</em> change the message body through application or removal of a transfer-coding (<a href="#transfer.codings" title="Transfer Codings">Section&nbsp;4</a>).
    18801880      </p>
    18811881      <p id="rfc.section.5.8.p.4">A non-transforming proxy <em class="bcp14">SHOULD NOT</em> modify header fields that provide information about the end points of the communication chain, the resource state, or the
     
    18851885      </p>
    18861886      <ul>
    1887          <li><a href="p2-semantics.html#header.allow" class="smpl">Allow</a> (<a href="p2-semantics.html#header.allow" title="Allow">Section 7.4.1</a> of <a href="#Part2" id="rfc.xref.Part2.21"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    1888          </li>
    1889          <li><a href="p2-semantics.html#header.content-location" class="smpl">Content-Location</a> (<a href="p2-semantics.html#header.content-location" title="Content-Location">Section 3.1.4</a> of <a href="#Part2" id="rfc.xref.Part2.22"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1887         <li><a href="p2-semantics.html#header.allow" class="smpl">Allow</a> (<a href="p2-semantics.html#header.allow" title="Allow">Section 8.4.1</a> of <a href="#Part2" id="rfc.xref.Part2.21"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1888         </li>
     1889         <li><a href="p2-semantics.html#header.content-location" class="smpl">Content-Location</a> (<a href="p2-semantics.html#header.content-location" title="Content-Location">Section 3.1.4.2</a> of <a href="#Part2" id="rfc.xref.Part2.22"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    18901890         </li>
    18911891         <li>Content-MD5 (<a href="http://tools.ietf.org/html/rfc2616#section-14.15">Section 14.15</a> of <a href="#RFC2616" id="rfc.xref.RFC2616.3"><cite title="Hypertext Transfer Protocol -- HTTP/1.1">[RFC2616]</cite></a>)
     
    18951895         <li><a href="p4-conditional.html#header.last-modified" class="smpl">Last-Modified</a> (<a href="p4-conditional.html#header.last-modified" title="Last-Modified">Section 2.2</a> of <a href="#Part4" id="rfc.xref.Part4.5"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests">[Part4]</cite></a>)
    18961896         </li>
    1897          <li><a href="p2-semantics.html#header.server" class="smpl">Server</a> (<a href="p2-semantics.html#header.server" title="Server">Section 7.4.2</a> of <a href="#Part2" id="rfc.xref.Part2.23"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1897         <li><a href="p2-semantics.html#header.server" class="smpl">Server</a> (<a href="p2-semantics.html#header.server" title="Server">Section 8.4.2</a> of <a href="#Part2" id="rfc.xref.Part2.23"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    18981898         </li>
    18991899      </ul>
     
    19031903      </p>
    19041904      <ul>
    1905          <li><a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#header.content-encoding" title="Content-Encoding">Section 3.1.2</a> of <a href="#Part2" id="rfc.xref.Part2.24"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1905         <li><a href="p2-semantics.html#header.content-encoding" class="smpl">Content-Encoding</a> (<a href="p2-semantics.html#header.content-encoding" title="Content-Encoding">Section 3.1.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.24"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    19061906         </li>
    19071907         <li><a href="p5-range.html#header.content-range" class="smpl">Content-Range</a> (<a href="p5-range.html#header.content-range" title="Content-Range">Section 5.2</a> of <a href="#Part5" id="rfc.xref.Part5.2"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Range Requests">[Part5]</cite></a>)
    19081908         </li>
    1909          <li><a href="p2-semantics.html#header.content-type" class="smpl">Content-Type</a> (<a href="p2-semantics.html#header.content-type" title="Content-Type">Section 3.1.1</a> of <a href="#Part2" id="rfc.xref.Part2.25"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
     1909         <li><a href="p2-semantics.html#header.content-type" class="smpl">Content-Type</a> (<a href="p2-semantics.html#header.content-type" title="Content-Type">Section 3.1.1.5</a> of <a href="#Part2" id="rfc.xref.Part2.25"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>)
    19101910         </li>
    19111911      </ul>
     
    19201920      <p id="rfc.section.5.9.p.1">HTTP does not include a request identifier for associating a given request message with its corresponding one or more response
    19211921         messages. Hence, it relies on the order of response arrival to correspond exactly to the order in which requests are made
    1922          on the same connection. More than one response message per request only occurs when one or more informational responses (<a href="p2-semantics.html#status.1xx" class="smpl">1xx</a>, see <a href="p2-semantics.html#status.1xx" title="Informational 1xx">Section 6.2</a> of <a href="#Part2" id="rfc.xref.Part2.26"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) precede a final response to the same request.
     1922         on the same connection. More than one response message per request only occurs when one or more informational responses (<a href="p2-semantics.html#status.1xx" class="smpl">1xx</a>, see <a href="p2-semantics.html#status.1xx" title="Informational 1xx">Section 7.2</a> of <a href="#Part2" id="rfc.xref.Part2.26"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) precede a final response to the same request.
    19231923      </p>
    19241924      <p id="rfc.section.5.9.p.2">A client that uses persistent connections and sends more than one request per connection <em class="bcp14">MUST</em> maintain a list of outstanding requests in the order sent on that connection and <em class="bcp14">MUST</em> associate each received response message to the highest ordered request that has not yet received a final (non-<a href="p2-semantics.html#status.1xx" class="smpl">1xx</a>) response.
     
    20412041      <p id="rfc.section.6.2.2.1.p.2">Clients which assume persistent connections and pipeline immediately after connection establishment <em class="bcp14">SHOULD</em> be prepared to retry their connection if the first pipelined attempt fails. If a client does such a retry, it <em class="bcp14">MUST NOT</em> pipeline before it knows the connection is persistent. Clients <em class="bcp14">MUST</em> also be prepared to resend their requests if the server closes the connection before sending all of the corresponding responses.
    20422042      </p>
    2043       <p id="rfc.section.6.2.2.1.p.3">Clients <em class="bcp14">SHOULD NOT</em> pipeline requests using non-idempotent request methods or non-idempotent sequences of request methods (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 4.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.27"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Otherwise, a premature termination of the transport connection could lead to indeterminate results. A client wishing to
     2043      <p id="rfc.section.6.2.2.1.p.3">Clients <em class="bcp14">SHOULD NOT</em> pipeline requests using non-idempotent request methods or non-idempotent sequences of request methods (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 5.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.27"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Otherwise, a premature termination of the transport connection could lead to indeterminate results. A client wishing to
    20442044         send a non-idempotent request <em class="bcp14">SHOULD</em> wait to send that request until it has received the response status line for the previous request.
    20452045      </p>
    20462046      <h4 id="rfc.section.6.2.2.2"><a href="#rfc.section.6.2.2.2">6.2.2.2</a>&nbsp;<a id="persistent.retrying.requests" href="#persistent.retrying.requests">Retrying Requests</a></h4>
    20472047      <p id="rfc.section.6.2.2.2.p.1">Senders can close the transport connection at any time. Therefore, clients, servers, and proxies <em class="bcp14">MUST</em> be able to recover from asynchronous close events. Client software <em class="bcp14">MAY</em> reopen the transport connection and retransmit the aborted sequence of requests without user interaction so long as the request
    2048          sequence is idempotent (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 4.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.28"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Non-idempotent request methods or sequences <em class="bcp14">MUST NOT</em> be automatically retried, although user agents <em class="bcp14">MAY</em> offer a human operator the choice of retrying the request(s). Confirmation by user-agent software with semantic understanding
     2048         sequence is idempotent (see <a href="p2-semantics.html#idempotent.methods" title="Idempotent Methods">Section 5.2.2</a> of <a href="#Part2" id="rfc.xref.Part2.28"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>). Non-idempotent request methods or sequences <em class="bcp14">MUST NOT</em> be automatically retried, although user agents <em class="bcp14">MAY</em> offer a human operator the choice of retrying the request(s). Confirmation by user-agent software with semantic understanding
    20492049         of the application <em class="bcp14">MAY</em> substitute for user confirmation. The automatic retry <em class="bcp14">SHOULD NOT</em> be repeated if the second sequence of requests fails.
    20502050      </p>
     
    21392139      </p>
    21402140      <p id="rfc.section.6.3.p.9">The Upgrade header field only applies to switching application-level protocols on the existing connection; it cannot be used
    2141          to switch to a protocol on a different connection. For that purpose, it is more appropriate to use a <a href="p2-semantics.html#status.3xx" class="smpl">3xx (Redirection)</a> response (<a href="p2-semantics.html#status.3xx" title="Redirection 3xx">Section 6.4</a> of <a href="#Part2" id="rfc.xref.Part2.29"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     2141         to switch to a protocol on a different connection. For that purpose, it is more appropriate to use a <a href="p2-semantics.html#status.3xx" class="smpl">3xx (Redirection)</a> response (<a href="p2-semantics.html#status.3xx" title="Redirection 3xx">Section 7.4</a> of <a href="#Part2" id="rfc.xref.Part2.29"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    21422142      </p>
    21432143      <p id="rfc.section.6.3.p.10">This specification only defines the protocol name "HTTP" for use by the family of Hypertext Transfer Protocols, as defined
     
    24002400         <li>Pointer to specification text</li>
    24012401      </ul>
    2402       <p id="rfc.section.7.4.p.3">Names of transfer codings <em class="bcp14">MUST NOT</em> overlap with names of content codings (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 8.4</a> of <a href="#Part2" id="rfc.xref.Part2.30"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) unless the encoding transformation is identical, as is the case for the compression codings defined in <a href="#compression.codings" title="Compression Codings">Section&nbsp;4.2</a>.
     2402      <p id="rfc.section.7.4.p.3">Names of transfer codings <em class="bcp14">MUST NOT</em> overlap with names of content codings (<a href="p2-semantics.html#content.codings" title="Content Codings">Section 3.1.2.1</a> of <a href="#Part2" id="rfc.xref.Part2.30"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) unless the encoding transformation is identical, as is the case for the compression codings defined in <a href="#compression.codings" title="Compression Codings">Section&nbsp;4.2</a>.
    24032403      </p>
    24042404      <p id="rfc.section.7.4.p.4">Values to be added to this name space require IETF Review (see <a href="http://tools.ietf.org/html/rfc5226#section-4.1">Section 4.1</a> of <a href="#RFC5226" id="rfc.xref.RFC5226.1"><cite title="Guidelines for Writing an IANA Considerations Section in RFCs">[RFC5226]</cite></a>), and <em class="bcp14">MUST</em> conform to the purpose of transfer coding defined in this section. Use of program names for the identification of encoding
     
    25552555         that most implementations will choose substantially higher limits.
    25562556      </p>
    2557       <p id="rfc.section.8.6.p.3">This specification also provides a way for servers to reject messages that have request-targets that are too long (<a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 6.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.31"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) or request entities that are too large (<a href="p2-semantics.html#status.4xx" title="Client Error 4xx">Section 6.5</a> of <a href="#Part2" id="rfc.xref.Part2.32"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
     2557      <p id="rfc.section.8.6.p.3">This specification also provides a way for servers to reject messages that have request-targets that are too long (<a href="p2-semantics.html#status.414" title="414 URI Too Long">Section 7.5.12</a> of <a href="#Part2" id="rfc.xref.Part2.31"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>) or request entities that are too large (<a href="p2-semantics.html#status.4xx" title="Client Error 4xx">Section 7.5</a> of <a href="#Part2" id="rfc.xref.Part2.32"><cite title="Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content">[Part2]</cite></a>).
    25582558      </p>
    25592559      <p id="rfc.section.8.6.p.4">Recipients <em class="bcp14">SHOULD</em> carefully limit the extent to which they read other fields, including (but not limited to) request methods, response status
     
    26062606         <tr>
    26072607            <td class="reference"><b id="Part2">[Part2]</b></td>
    2608             <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a> and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p2-semantics-latest">Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p2-semantics-latest (work in progress), September&nbsp;2012.
     2608            <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a> and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p2-semantics-latest">Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p2-semantics-latest (work in progress), October&nbsp;2012.
    26092609            </td>
    26102610         </tr>
    26112611         <tr>
    26122612            <td class="reference"><b id="Part4">[Part4]</b></td>
    2613             <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a> and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p4-conditional-latest">Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p4-conditional-latest (work in progress), September&nbsp;2012.
     2613            <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a> and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p4-conditional-latest">Hypertext Transfer Protocol (HTTP/1.1): Conditional Requests</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p4-conditional-latest (work in progress), October&nbsp;2012.
    26142614            </td>
    26152615         </tr>
    26162616         <tr>
    26172617            <td class="reference"><b id="Part5">[Part5]</b></td>
    2618             <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a>, <a href="mailto:ylafon@w3.org" title="World Wide Web Consortium">Lafon, Y., Ed.</a>, and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p5-range-latest">Hypertext Transfer Protocol (HTTP/1.1): Range Requests</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p5-range-latest (work in progress), September&nbsp;2012.
     2618            <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a>, <a href="mailto:ylafon@w3.org" title="World Wide Web Consortium">Lafon, Y., Ed.</a>, and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p5-range-latest">Hypertext Transfer Protocol (HTTP/1.1): Range Requests</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p5-range-latest (work in progress), October&nbsp;2012.
    26192619            </td>
    26202620         </tr>
    26212621         <tr>
    26222622            <td class="reference"><b id="Part6">[Part6]</b></td>
    2623             <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a>, <a href="mailto:mnot@mnot.net" title="Akamai">Nottingham, M., Ed.</a>, and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p6-cache-latest">Hypertext Transfer Protocol (HTTP/1.1): Caching</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p6-cache-latest (work in progress), September&nbsp;2012.
     2623            <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a>, <a href="mailto:mnot@mnot.net" title="Akamai">Nottingham, M., Ed.</a>, and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p6-cache-latest">Hypertext Transfer Protocol (HTTP/1.1): Caching</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p6-cache-latest (work in progress), October&nbsp;2012.
    26242624            </td>
    26252625         </tr>
    26262626         <tr>
    26272627            <td class="reference"><b id="Part7">[Part7]</b></td>
    2628             <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a> and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p7-auth-latest">Hypertext Transfer Protocol (HTTP/1.1): Authentication</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p7-auth-latest (work in progress), September&nbsp;2012.
     2628            <td class="top"><a href="mailto:fielding@gbiv.com" title="Adobe Systems Incorporated">Fielding, R., Ed.</a> and <a href="mailto:julian.reschke@greenbytes.de" title="greenbytes GmbH">J. Reschke, Ed.</a>, “<a href="http://tools.ietf.org/html/draft-ietf-httpbis-p7-auth-latest">Hypertext Transfer Protocol (HTTP/1.1): Authentication</a>”, Internet-Draft&nbsp;draft-ietf-httpbis-p7-auth-latest (work in progress), October&nbsp;2012.
    26292629            </td>
    26302630         </tr>
     
    36303630                  <li><em>Part2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.1">1</a>, <a href="#rfc.xref.Part2.2">2.1</a>, <a href="#rfc.xref.Part2.3">2.3</a>, <a href="#rfc.xref.Part2.4">2.7</a>, <a href="#rfc.xref.Part2.5">2.7.1</a>, <a href="#rfc.xref.Part2.6">3.1.1</a>, <a href="#rfc.xref.Part2.7">3.1.1</a>, <a href="#rfc.xref.Part2.8">3.1.2</a>, <a href="#rfc.xref.Part2.9">3.2</a>, <a href="#rfc.xref.Part2.10">3.2</a>, <a href="#rfc.xref.Part2.11">3.3</a>, <a href="#rfc.xref.Part2.12">3.3</a>, <a href="#rfc.xref.Part2.13">3.3.1</a>, <a href="#rfc.xref.Part2.14">3.3.2</a>, <a href="#rfc.xref.Part2.15">3.3.2</a>, <a href="#rfc.xref.Part2.16">4.3</a>, <a href="#rfc.xref.Part2.17">5.1</a>, <a href="#rfc.xref.Part2.18">5.3</a>, <a href="#rfc.xref.Part2.19">5.3</a>, <a href="#rfc.xref.Part2.20">5.8</a>, <a href="#rfc.xref.Part2.21">5.8</a>, <a href="#rfc.xref.Part2.22">5.8</a>, <a href="#rfc.xref.Part2.23">5.8</a>, <a href="#rfc.xref.Part2.24">5.8</a>, <a href="#rfc.xref.Part2.25">5.8</a>, <a href="#rfc.xref.Part2.26">5.9</a>, <a href="#rfc.xref.Part2.27">6.2.2.1</a>, <a href="#rfc.xref.Part2.28">6.2.2.2</a>, <a href="#rfc.xref.Part2.29">6.3</a>, <a href="#rfc.xref.Part2.30">7.4</a>, <a href="#rfc.xref.Part2.31">8.6</a>, <a href="#rfc.xref.Part2.32">8.6</a>, <a href="#Part2"><b>10.1</b></a><ul>
    36313631                        <li><em>Section 2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.4">2.7</a></li>
    3632                         <li><em>Section 3.1.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.25">5.8</a></li>
    3633                         <li><em>Section 3.1.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.24">5.8</a></li>
    3634                         <li><em>Section 3.1.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.22">5.8</a></li>
    3635                         <li><em>Section 3.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.20">5.8</a></li>
    3636                         <li><em>Section 4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.6">3.1.1</a></li>
    3637                         <li><em>Section 4.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.27">6.2.2.1</a>, <a href="#rfc.xref.Part2.28">6.2.2.2</a></li>
    3638                         <li><em>Section 4.3.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.11">3.3</a>, <a href="#rfc.xref.Part2.14">3.3.2</a></li>
    3639                         <li><em>Section 4.3.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.12">3.3</a>, <a href="#rfc.xref.Part2.15">3.3.2</a>, <a href="#rfc.xref.Part2.18">5.3</a></li>
    3640                         <li><em>Section 4.3.7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.19">5.3</a></li>
    3641                         <li><em>Section 5.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.16">4.3</a></li>
    3642                         <li><em>Section 6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.5">2.7.1</a>, <a href="#rfc.xref.Part2.8">3.1.2</a></li>
    3643                         <li><em>Section 6.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.26">5.9</a></li>
    3644                         <li><em>Section 6.3.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.3">2.3</a></li>
    3645                         <li><em>Section 6.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.29">6.3</a></li>
    3646                         <li><em>Section 6.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.32">8.6</a></li>
    3647                         <li><em>Section 6.5.12</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.7">3.1.1</a>, <a href="#rfc.xref.Part2.31">8.6</a></li>
    3648                         <li><em>Section 7.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.9">3.2</a></li>
    3649                         <li><em>Section 7.4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.21">5.8</a></li>
    3650                         <li><em>Section 7.4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.23">5.8</a></li>
    3651                         <li><em>Section 8.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.13">3.3.1</a>, <a href="#rfc.xref.Part2.30">7.4</a></li>
     3632                        <li><em>Section 3.1.1.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.25">5.8</a></li>
     3633                        <li><em>Section 3.1.2.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.13">3.3.1</a>, <a href="#rfc.xref.Part2.30">7.4</a></li>
     3634                        <li><em>Section 3.1.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.24">5.8</a></li>
     3635                        <li><em>Section 3.1.4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.22">5.8</a></li>
     3636                        <li><em>Section 3.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.20">5.8</a></li>
     3637                        <li><em>Section 5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.6">3.1.1</a></li>
     3638                        <li><em>Section 5.2.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.27">6.2.2.1</a>, <a href="#rfc.xref.Part2.28">6.2.2.2</a></li>
     3639                        <li><em>Section 5.3.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.11">3.3</a>, <a href="#rfc.xref.Part2.14">3.3.2</a></li>
     3640                        <li><em>Section 5.3.6</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.12">3.3</a>, <a href="#rfc.xref.Part2.15">3.3.2</a>, <a href="#rfc.xref.Part2.18">5.3</a></li>
     3641                        <li><em>Section 5.3.7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.19">5.3</a></li>
     3642                        <li><em>Section 6.3.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.16">4.3</a></li>
     3643                        <li><em>Section 7</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.5">2.7.1</a>, <a href="#rfc.xref.Part2.8">3.1.2</a></li>
     3644                        <li><em>Section 7.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.26">5.9</a></li>
     3645                        <li><em>Section 7.3.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.3">2.3</a></li>
     3646                        <li><em>Section 7.4</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.29">6.3</a></li>
     3647                        <li><em>Section 7.5</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.32">8.6</a></li>
     3648                        <li><em>Section 7.5.12</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.7">3.1.1</a>, <a href="#rfc.xref.Part2.31">8.6</a></li>
     3649                        <li><em>Section 8.1.1.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.9">3.2</a></li>
     3650                        <li><em>Section 8.4.1</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.21">5.8</a></li>
     3651                        <li><em>Section 8.4.2</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.23">5.8</a></li>
    36523652                        <li><em>Section 9.3</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.10">3.2</a></li>
    36533653                        <li><em>Appendix A</em>&nbsp;&nbsp;<a href="#rfc.xref.Part2.2">2.1</a></li>
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