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42	<tr bgcolor="orange"><th></th><th> draft-ietf-httpbis-p6-cache-02.txt </th><th> </th><th> draft-ietf-httpbis-p6-cache-03.txt </th><th></th></tr>
43	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
44	<tr><td class="lineno" valign="top"></td><td class="left">Network Working Group R. Fielding, Ed.</td><td> </td><td class="right">Network Working Group R. Fielding, Ed.</td><td class="lineno" valign="top"></td></tr>
45	<tr><td class="lineno" valign="top"></td><td class="left">Internet-Draft Day Software</td><td> </td><td class="right">Internet-Draft Day Software</td><td class="lineno" valign="top"></td></tr>
46	<tr><td class="lineno" valign="top"></td><td class="left">Obsoletes: 2616 (if approved) J. Gettys</td><td> </td><td class="right">Obsoletes: 2616 (if approved) J. Gettys</td><td class="lineno" valign="top"></td></tr>
47	<tr><td class="lineno" valign="top"></td><td class="left">Intended status: Standards Track One Laptop per Child</td><td> </td><td class="right">Intended status: Standards Track One Laptop per Child</td><td class="lineno" valign="top"></td></tr>
48	<tr><td><a name="diff0001" /></td></tr>
49	<tr><td class="lineno" valign="top"></td><td class="lblock">Expires: <span class="delete">August 27, 2008 </span> J. Mogul</td><td> </td><td class="rblock">Expires: <span class="insert">December 19, 2008</span> J. Mogul</td><td class="lineno" valign="top"></td></tr>
50	<tr><td class="lineno" valign="top"></td><td class="left"> HP</td><td> </td><td class="right"> HP</td><td class="lineno" valign="top"></td></tr>
51	<tr><td class="lineno" valign="top"></td><td class="left"> H. Frystyk</td><td> </td><td class="right"> H. Frystyk</td><td class="lineno" valign="top"></td></tr>
52	<tr><td class="lineno" valign="top"></td><td class="left"> Microsoft</td><td> </td><td class="right"> Microsoft</td><td class="lineno" valign="top"></td></tr>
53	<tr><td class="lineno" valign="top"></td><td class="left"> L. Masinter</td><td> </td><td class="right"> L. Masinter</td><td class="lineno" valign="top"></td></tr>
54	<tr><td class="lineno" valign="top"></td><td class="left"> Adobe Systems</td><td> </td><td class="right"> Adobe Systems</td><td class="lineno" valign="top"></td></tr>
55	<tr><td class="lineno" valign="top"></td><td class="left"> P. Leach</td><td> </td><td class="right"> P. Leach</td><td class="lineno" valign="top"></td></tr>
56	<tr><td class="lineno" valign="top"></td><td class="left"> Microsoft</td><td> </td><td class="right"> Microsoft</td><td class="lineno" valign="top"></td></tr>
57	<tr><td class="lineno" valign="top"></td><td class="left"> T. Berners-Lee</td><td> </td><td class="right"> T. Berners-Lee</td><td class="lineno" valign="top"></td></tr>
58	<tr><td class="lineno" valign="top"></td><td class="left"> W3C/MIT</td><td> </td><td class="right"> W3C/MIT</td><td class="lineno" valign="top"></td></tr>
59	<tr><td class="lineno" valign="top"></td><td class="left"> Y. Lafon, Ed.</td><td> </td><td class="right"> Y. Lafon, Ed.</td><td class="lineno" valign="top"></td></tr>
60	<tr><td class="lineno" valign="top"></td><td class="left"> W3C</td><td> </td><td class="right"> W3C</td><td class="lineno" valign="top"></td></tr>
61	<tr><td class="lineno" valign="top"></td><td class="left"> J. Reschke, Ed.</td><td> </td><td class="right"> J. Reschke, Ed.</td><td class="lineno" valign="top"></td></tr>
62	<tr><td class="lineno" valign="top"></td><td class="left"> greenbytes</td><td> </td><td class="right"> greenbytes</td><td class="lineno" valign="top"></td></tr>
63	<tr><td><a name="diff0002" /></td></tr>
64	<tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">February 24</span>, 2008</td><td> </td><td class="rblock"> <span class="insert"> June 17</span>, 2008</td><td class="lineno" valign="top"></td></tr>
65	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
66	<tr><td class="lineno" valign="top"></td><td class="left"> HTTP/1.1, part 6: Caching</td><td> </td><td class="right"> HTTP/1.1, part 6: Caching</td><td class="lineno" valign="top"></td></tr>
67	<tr><td><a name="diff0003" /></td></tr>
68	<tr><td class="lineno" valign="top"></td><td class="lblock"> draft-ietf-httpbis-p6-cache-0<span class="delete">2</span></td><td> </td><td class="rblock"> draft-ietf-httpbis-p6-cache-0<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
69	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
70	<tr><td class="lineno" valign="top"></td><td class="left">Status of this Memo</td><td> </td><td class="right">Status of this Memo</td><td class="lineno" valign="top"></td></tr>
71	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
72	<tr><td class="lineno" valign="top"></td><td class="left"> By submitting this Internet-Draft, each author represents that any</td><td> </td><td class="right"> By submitting this Internet-Draft, each author represents that any</td><td class="lineno" valign="top"></td></tr>
73	<tr><td class="lineno" valign="top"></td><td class="left"> applicable patent or other IPR claims of which he or she is aware</td><td> </td><td class="right"> applicable patent or other IPR claims of which he or she is aware</td><td class="lineno" valign="top"></td></tr>
74	<tr><td class="lineno" valign="top"></td><td class="left"> have been or will be disclosed, and any of which he or she becomes</td><td> </td><td class="right"> have been or will be disclosed, and any of which he or she becomes</td><td class="lineno" valign="top"></td></tr>
75	<tr><td class="lineno" valign="top"></td><td class="left"> aware will be disclosed, in accordance with Section 6 of BCP 79.</td><td> </td><td class="right"> aware will be disclosed, in accordance with Section 6 of BCP 79.</td><td class="lineno" valign="top"></td></tr>
76	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
77	<tr><td class="lineno" valign="top"></td><td class="left"> Internet-Drafts are working documents of the Internet Engineering</td><td> </td><td class="right"> Internet-Drafts are working documents of the Internet Engineering</td><td class="lineno" valign="top"></td></tr>
78	<tr><td class="lineno" valign="top"></td><td class="left"> Task Force (IETF), its areas, and its working groups. Note that</td><td> </td><td class="right"> Task Force (IETF), its areas, and its working groups. Note that</td><td class="lineno" valign="top"></td></tr>
79	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
80	<tr bgcolor="gray" ><td></td><th><a name="part-l2" /><small>skipping to change at</small><em> page 1, line 49</em></th><th> </th><th><a name="part-r2" /><small>skipping to change at</small><em> page 1, line 49</em></th><td></td></tr>
81	<tr><td class="lineno" valign="top"></td><td class="left"> and may be updated, replaced, or obsoleted by other documents at any</td><td> </td><td class="right"> and may be updated, replaced, or obsoleted by other documents at any</td><td class="lineno" valign="top"></td></tr>
82	<tr><td class="lineno" valign="top"></td><td class="left"> time. It is inappropriate to use Internet-Drafts as reference</td><td> </td><td class="right"> time. It is inappropriate to use Internet-Drafts as reference</td><td class="lineno" valign="top"></td></tr>
83	<tr><td class="lineno" valign="top"></td><td class="left"> material or to cite them other than as "work in progress."</td><td> </td><td class="right"> material or to cite them other than as "work in progress."</td><td class="lineno" valign="top"></td></tr>
84	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
85	<tr><td class="lineno" valign="top"></td><td class="left"> The list of current Internet-Drafts can be accessed at</td><td> </td><td class="right"> The list of current Internet-Drafts can be accessed at</td><td class="lineno" valign="top"></td></tr>
86	<tr><td class="lineno" valign="top"></td><td class="left"> http://www.ietf.org/ietf/1id-abstracts.txt.</td><td> </td><td class="right"> http://www.ietf.org/ietf/1id-abstracts.txt.</td><td class="lineno" valign="top"></td></tr>
87	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
88	<tr><td class="lineno" valign="top"></td><td class="left"> The list of Internet-Draft Shadow Directories can be accessed at</td><td> </td><td class="right"> The list of Internet-Draft Shadow Directories can be accessed at</td><td class="lineno" valign="top"></td></tr>
89	<tr><td class="lineno" valign="top"></td><td class="left"> http://www.ietf.org/shadow.html.</td><td> </td><td class="right"> http://www.ietf.org/shadow.html.</td><td class="lineno" valign="top"></td></tr>
90	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
91	<tr><td><a name="diff0004" /></td></tr>
92	<tr><td class="lineno" valign="top"></td><td class="lblock"> This Internet-Draft will expire on <span class="delete">August 27</span>, 2008.</td><td> </td><td class="rblock"> This Internet-Draft will expire on <span class="insert">December 19</span>, 2008.</td><td class="lineno" valign="top"></td></tr>
93	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
94	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">Copyright Notice</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
95	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
96	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> Copyright (C) The IETF Trust (2008).</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
97	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
98	<tr><td class="lineno" valign="top"></td><td class="left">Abstract</td><td> </td><td class="right">Abstract</td><td class="lineno" valign="top"></td></tr>
99	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
100	<tr><td class="lineno" valign="top"></td><td class="left"> The Hypertext Transfer Protocol (HTTP) is an application-level</td><td> </td><td class="right"> The Hypertext Transfer Protocol (HTTP) is an application-level</td><td class="lineno" valign="top"></td></tr>
101	<tr><td class="lineno" valign="top"></td><td class="left"> protocol for distributed, collaborative, hypermedia information</td><td> </td><td class="right"> protocol for distributed, collaborative, hypermedia information</td><td class="lineno" valign="top"></td></tr>
102	<tr><td class="lineno" valign="top"></td><td class="left"> systems. HTTP has been in use by the World Wide Web global</td><td> </td><td class="right"> systems. HTTP has been in use by the World Wide Web global</td><td class="lineno" valign="top"></td></tr>
103	<tr><td class="lineno" valign="top"></td><td class="left"> information initiative since 1990. This document is Part 6 of the</td><td> </td><td class="right"> information initiative since 1990. This document is Part 6 of the</td><td class="lineno" valign="top"></td></tr>
104	<tr><td class="lineno" valign="top"></td><td class="left"> seven-part specification that defines the protocol referred to as</td><td> </td><td class="right"> seven-part specification that defines the protocol referred to as</td><td class="lineno" valign="top"></td></tr>
105	<tr><td class="lineno" valign="top"></td><td class="left"> "HTTP/1.1" and, taken together, obsoletes RFC 2616. Part 6 defines</td><td> </td><td class="right"> "HTTP/1.1" and, taken together, obsoletes RFC 2616. Part 6 defines</td><td class="lineno" valign="top"></td></tr>
106	<tr><td class="lineno" valign="top"></td><td class="left"> requirements on HTTP caches and the associated header fields that</td><td> </td><td class="right"> requirements on HTTP caches and the associated header fields that</td><td class="lineno" valign="top"></td></tr>
107	<tr><td class="lineno" valign="top"></td><td class="left"> control cache behavior or indicate cacheable response messages.</td><td> </td><td class="right"> control cache behavior or indicate cacheable response messages.</td><td class="lineno" valign="top"></td></tr>
108	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
109	<tr><td class="lineno" valign="top"></td><td class="left">Editorial Note (To be removed by RFC Editor)</td><td> </td><td class="right">Editorial Note (To be removed by RFC Editor)</td><td class="lineno" valign="top"></td></tr>
110	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
111	<tr><td class="lineno" valign="top"></td><td class="left"> Discussion of this draft should take place on the HTTPBIS working</td><td> </td><td class="right"> Discussion of this draft should take place on the HTTPBIS working</td><td class="lineno" valign="top"></td></tr>
112	<tr><td class="lineno" valign="top"></td><td class="left"> group mailing list (ietf-http-wg@w3.org). The current issues list is</td><td> </td><td class="right"> group mailing list (ietf-http-wg@w3.org). The current issues list is</td><td class="lineno" valign="top"></td></tr>
113	<tr><td class="lineno" valign="top"></td><td class="left"> at <http://www.tools.ietf.org/wg/httpbis/trac/report/11> and related</td><td> </td><td class="right"> at <http://www.tools.ietf.org/wg/httpbis/trac/report/11> and related</td><td class="lineno" valign="top"></td></tr>
114	<tr><td class="lineno" valign="top"></td><td class="left"> documents (including fancy diffs) can be found at</td><td> </td><td class="right"> documents (including fancy diffs) can be found at</td><td class="lineno" valign="top"></td></tr>
115	<tr><td class="lineno" valign="top"></td><td class="left"> <http://www.tools.ietf.org/wg/httpbis/>.</td><td> </td><td class="right"> <http://www.tools.ietf.org/wg/httpbis/>.</td><td class="lineno" valign="top"></td></tr>
116	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
117	<tr><td><a name="diff0005" /></td></tr>
118	<tr><td class="lineno" valign="top"></td><td class="lblock"> Th<span class="delete">is draft incorporates those issue resolutions that were either</span></td><td> </td><td class="rblock"> Th<span class="insert">e changes in this draft are summarized in Appendix B.4.</span></td><td class="lineno" valign="top"></td></tr>
119	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> collected in the original RFC2616 errata list</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
120	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> (<http://purl.org/NET/http-errata>), or which were agreed upon on the</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
121	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> mailing list between October 2006 and November 2007 (as published in</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
122	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> "draft-lafon-rfc2616bis-03").</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
123	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
124	<tr><td class="lineno" valign="top"></td><td class="left">Table of Contents</td><td> </td><td class="right">Table of Contents</td><td class="lineno" valign="top"></td></tr>
125	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
126	<tr><td class="lineno" valign="top"></td><td class="left"> 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5</td><td> </td><td class="right"> 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5</td><td class="lineno" valign="top"></td></tr>
127	<tr><td class="lineno" valign="top"></td><td class="left"> 1.1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . 5</td><td> </td><td class="right"> 1.1. Purpose . . . . . . . . . . . . . . . . . . . . . . . . . 5</td><td class="lineno" valign="top"></td></tr>
128	<tr><td class="lineno" valign="top"></td><td class="left"> 1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6</td><td> </td><td class="right"> 1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6</td><td class="lineno" valign="top"></td></tr>
129	<tr><td class="lineno" valign="top"></td><td class="left"> 1.3. Requirements . . . . . . . . . . . . . . . . . . . . . . . 7</td><td> </td><td class="right"> 1.3. Requirements . . . . . . . . . . . . . . . . . . . . . . . 7</td><td class="lineno" valign="top"></td></tr>
130	<tr><td class="lineno" valign="top"></td><td class="left"> 2. Notational Conventions and Generic Grammar . . . . . . . . . . 8</td><td> </td><td class="right"> 2. Notational Conventions and Generic Grammar . . . . . . . . . . 8</td><td class="lineno" valign="top"></td></tr>
131	<tr><td class="lineno" valign="top"></td><td class="left"> 3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 8</td><td> </td><td class="right"> 3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 8</td><td class="lineno" valign="top"></td></tr>
132	<tr><td class="lineno" valign="top"></td><td class="left"> 3.1. Cache Correctness . . . . . . . . . . . . . . . . . . . . 8</td><td> </td><td class="right"> 3.1. Cache Correctness . . . . . . . . . . . . . . . . . . . . 8</td><td class="lineno" valign="top"></td></tr>
133	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
134	<tr bgcolor="gray" ><td></td><th><a name="part-l3" /><small>skipping to change at</small><em> page 4, line 5</em></th><th> </th><th><a name="part-r3" /><small>skipping to change at</small><em> page 4, line 5</em></th><td></td></tr>
135	<tr><td class="lineno" valign="top"></td><td class="left"> 16.2.2. What May be Stored by Caches . . . . . . . . . . . . 30</td><td> </td><td class="right"> 16.2.2. What May be Stored by Caches . . . . . . . . . . . . 30</td><td class="lineno" valign="top"></td></tr>
136	<tr><td class="lineno" valign="top"></td><td class="left"> 16.2.3. Modifications of the Basic Expiration Mechanism . . . 31</td><td> </td><td class="right"> 16.2.3. Modifications of the Basic Expiration Mechanism . . . 31</td><td class="lineno" valign="top"></td></tr>
137	<tr><td class="lineno" valign="top"></td><td class="left"> 16.2.4. Cache Revalidation and Reload Controls . . . . . . . 33</td><td> </td><td class="right"> 16.2.4. Cache Revalidation and Reload Controls . . . . . . . 33</td><td class="lineno" valign="top"></td></tr>
138	<tr><td class="lineno" valign="top"></td><td class="left"> 16.2.5. No-Transform Directive . . . . . . . . . . . . . . . 35</td><td> </td><td class="right"> 16.2.5. No-Transform Directive . . . . . . . . . . . . . . . 35</td><td class="lineno" valign="top"></td></tr>
139	<tr><td class="lineno" valign="top"></td><td class="left"> 16.2.6. Cache Control Extensions . . . . . . . . . . . . . . 36</td><td> </td><td class="right"> 16.2.6. Cache Control Extensions . . . . . . . . . . . . . . 36</td><td class="lineno" valign="top"></td></tr>
140	<tr><td class="lineno" valign="top"></td><td class="left"> 16.3. Expires . . . . . . . . . . . . . . . . . . . . . . . . . 37</td><td> </td><td class="right"> 16.3. Expires . . . . . . . . . . . . . . . . . . . . . . . . . 37</td><td class="lineno" valign="top"></td></tr>
141	<tr><td class="lineno" valign="top"></td><td class="left"> 16.4. Pragma . . . . . . . . . . . . . . . . . . . . . . . . . . 38</td><td> </td><td class="right"> 16.4. Pragma . . . . . . . . . . . . . . . . . . . . . . . . . . 38</td><td class="lineno" valign="top"></td></tr>
142	<tr><td class="lineno" valign="top"></td><td class="left"> 16.5. Vary . . . . . . . . . . . . . . . . . . . . . . . . . . . 38</td><td> </td><td class="right"> 16.5. Vary . . . . . . . . . . . . . . . . . . . . . . . . . . . 38</td><td class="lineno" valign="top"></td></tr>
143	<tr><td class="lineno" valign="top"></td><td class="left"> 16.6. Warning . . . . . . . . . . . . . . . . . . . . . . . . . 39</td><td> </td><td class="right"> 16.6. Warning . . . . . . . . . . . . . . . . . . . . . . . . . 39</td><td class="lineno" valign="top"></td></tr>
144	<tr><td class="lineno" valign="top"></td><td class="left"> 17. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 42</td><td> </td><td class="right"> 17. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 42</td><td class="lineno" valign="top"></td></tr>
145	<tr><td><a name="diff0006" /></td></tr>
146	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> 17.1. Message Header Registration . . . . . . . . . . . . . . . 42</span></td><td class="lineno" valign="top"></td></tr>
147	<tr><td class="lineno" valign="top"></td><td class="left"> 18. Security Considerations . . . . . . . . . . . . . . . . . . . 42</td><td> </td><td class="right"> 18. Security Considerations . . . . . . . . . . . . . . . . . . . 42</td><td class="lineno" valign="top"></td></tr>
148	<tr><td><a name="diff0007" /></td></tr>
149	<tr><td class="lineno" valign="top"></td><td class="lblock"> 19. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 4<span class="delete">2</span></td><td> </td><td class="rblock"> 19. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 4<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
150	<tr><td class="lineno" valign="top"></td><td class="lblock"> 20. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4<span class="delete">2</span></td><td> </td><td class="rblock"> 20. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
151	<tr><td class="lineno" valign="top"></td><td class="lblock"> 20.1. Normative References . . . . . . . . . . . . . . . . . . . 4<span class="delete">2</span></td><td> </td><td class="rblock"> 20.1. Normative References . . . . . . . . . . . . . . . . . . . 4<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
152	<tr><td class="lineno" valign="top"></td><td class="left"> 20.2. Informative References . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right"> 20.2. Informative References . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
153	<tr><td class="lineno" valign="top"></td><td class="left"> Appendix A. Compatibility with Previous Versions . . . . . . . . 44</td><td> </td><td class="right"> Appendix A. Compatibility with Previous Versions . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
154	<tr><td class="lineno" valign="top"></td><td class="left"> A.1. Changes from RFC 2068 . . . . . . . . . . . . . . . . . . 44</td><td> </td><td class="right"> A.1. Changes from RFC 2068 . . . . . . . . . . . . . . . . . . 44</td><td class="lineno" valign="top"></td></tr>
155	<tr><td><a name="diff0008" /></td></tr>
156	<tr><td class="lineno" valign="top"></td><td class="lblock"> A.2. Changes from RFC 2616 . . . . . . . . . . . . . . . . . . 4<span class="delete">4</span></td><td> </td><td class="rblock"> A.2. Changes from RFC 2616 . . . . . . . . . . . . . . . . . . 4<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
157	<tr><td class="lineno" valign="top"></td><td class="left"> Appendix B. Change Log (to be removed by RFC Editor before</td><td> </td><td class="right"> Appendix B. Change Log (to be removed by RFC Editor before</td><td class="lineno" valign="top"></td></tr>
158	<tr><td><a name="diff0009" /></td></tr>
159	<tr><td class="lineno" valign="top"></td><td class="lblock"> publication) . . . . . . . . . . . . . . . . . . . . 4<span class="delete">4</span></td><td> </td><td class="rblock"> publication) . . . . . . . . . . . . . . . . . . . . 4<span class="insert">5</span></td><td class="lineno" valign="top"></td></tr>
160	<tr><td class="lineno" valign="top"></td><td class="left"> B.1. Since RFC2616 . . . . . . . . . . . . . . . . . . . . . . 45</td><td> </td><td class="right"> B.1. Since RFC2616 . . . . . . . . . . . . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
161	<tr><td class="lineno" valign="top"></td><td class="left"> B.2. Since draft-ietf-httpbis-p6-cache-00 . . . . . . . . . . . 45</td><td> </td><td class="right"> B.2. Since draft-ietf-httpbis-p6-cache-00 . . . . . . . . . . . 45</td><td class="lineno" valign="top"></td></tr>
162	<tr><td><a name="diff0010" /></td></tr>
163	<tr><td class="lineno" valign="top"></td><td class="lblock"> B.3. Since draft-ietf-httpbis-p6-cache-01 . . . . . . . . . . . 4<span class="delete">5</span></td><td> </td><td class="rblock"> B.3. Since draft-ietf-httpbis-p6-cache-01 . . . . . . . . . . . 4<span class="insert">6</span></td><td class="lineno" valign="top"></td></tr>
164	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> B.4. Since draft-ietf-httpbis-p6-cache-02 . . . . . . . . . . . 46</span></td><td class="lineno" valign="top"></td></tr>
165	<tr><td class="lineno" valign="top"></td><td class="left"> Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46</td><td> </td><td class="right"> Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46</td><td class="lineno" valign="top"></td></tr>
166	<tr><td><a name="diff0011" /></td></tr>
167	<tr><td class="lineno" valign="top"></td><td class="lblock"> Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 4<span class="delete">8</span></td><td> </td><td class="rblock"> Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 4<span class="insert">9</span></td><td class="lineno" valign="top"></td></tr>
168	<tr><td class="lineno" valign="top"></td><td class="lblock"> Intellectual Property and Copyright Statements . . . . . . . . . . 5<span class="delete">1</span></td><td> </td><td class="rblock"> Intellectual Property and Copyright Statements . . . . . . . . . . 5<span class="insert">2</span></td><td class="lineno" valign="top"></td></tr>
169	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
170	<tr><td class="lineno" valign="top"></td><td class="left">1. Introduction</td><td> </td><td class="right">1. Introduction</td><td class="lineno" valign="top"></td></tr>
171	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
172	<tr><td class="lineno" valign="top"></td><td class="left"> HTTP is typically used for distributed information systems, where</td><td> </td><td class="right"> HTTP is typically used for distributed information systems, where</td><td class="lineno" valign="top"></td></tr>
173	<tr><td class="lineno" valign="top"></td><td class="left"> performance can be improved by the use of response caches, and</td><td> </td><td class="right"> performance can be improved by the use of response caches, and</td><td class="lineno" valign="top"></td></tr>
174	<tr><td class="lineno" valign="top"></td><td class="left"> includes a number of elements intended to make caching work as well</td><td> </td><td class="right"> includes a number of elements intended to make caching work as well</td><td class="lineno" valign="top"></td></tr>
175	<tr><td class="lineno" valign="top"></td><td class="left"> as possible. Because these elements interact with each other, it is</td><td> </td><td class="right"> as possible. Because these elements interact with each other, it is</td><td class="lineno" valign="top"></td></tr>
176	<tr><td class="lineno" valign="top"></td><td class="left"> useful to describe the caching design of HTTP separately. This</td><td> </td><td class="right"> useful to describe the caching design of HTTP separately. This</td><td class="lineno" valign="top"></td></tr>
177	<tr><td class="lineno" valign="top"></td><td class="left"> document defines aspects of HTTP/1.1 related to caching and reusing</td><td> </td><td class="right"> document defines aspects of HTTP/1.1 related to caching and reusing</td><td class="lineno" valign="top"></td></tr>
178	<tr><td class="lineno" valign="top"></td><td class="left"> response messages.</td><td> </td><td class="right"> response messages.</td><td class="lineno" valign="top"></td></tr>
179	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
180	<tr bgcolor="gray" ><td></td><th><a name="part-l4" /><small>skipping to change at</small><em> page 42, line 25</em></th><th> </th><th><a name="part-r4" /><small>skipping to change at</small><em> page 42, line 25</em></th><td></td></tr>
181	<tr><td class="lineno" valign="top"></td><td class="left"> If an implementation receives a message with a warning-value that</td><td> </td><td class="right"> If an implementation receives a message with a warning-value that</td><td class="lineno" valign="top"></td></tr>
182	<tr><td class="lineno" valign="top"></td><td class="left"> includes a warn-date, and that warn-date is different from the Date</td><td> </td><td class="right"> includes a warn-date, and that warn-date is different from the Date</td><td class="lineno" valign="top"></td></tr>
183	<tr><td class="lineno" valign="top"></td><td class="left"> value in the response, then that warning-value MUST be deleted from</td><td> </td><td class="right"> value in the response, then that warning-value MUST be deleted from</td><td class="lineno" valign="top"></td></tr>
184	<tr><td class="lineno" valign="top"></td><td class="left"> the message before storing, forwarding, or using it. (This prevents</td><td> </td><td class="right"> the message before storing, forwarding, or using it. (This prevents</td><td class="lineno" valign="top"></td></tr>
185	<tr><td class="lineno" valign="top"></td><td class="left"> bad consequences of naive caching of Warning header fields.) If all</td><td> </td><td class="right"> bad consequences of naive caching of Warning header fields.) If all</td><td class="lineno" valign="top"></td></tr>
186	<tr><td class="lineno" valign="top"></td><td class="left"> of the warning-values are deleted for this reason, the Warning header</td><td> </td><td class="right"> of the warning-values are deleted for this reason, the Warning header</td><td class="lineno" valign="top"></td></tr>
187	<tr><td class="lineno" valign="top"></td><td class="left"> MUST be deleted as well.</td><td> </td><td class="right"> MUST be deleted as well.</td><td class="lineno" valign="top"></td></tr>
188	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
189	<tr><td class="lineno" valign="top"></td><td class="left">17. IANA Considerations</td><td> </td><td class="right">17. IANA Considerations</td><td class="lineno" valign="top"></td></tr>
190	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
191	<tr><td><a name="diff0012" /></td></tr>
192	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> [[anchor1: TBD.]]</span></td><td> </td><td class="rblock"><span class="insert">17.1. Message Header Registration</span></td><td class="lineno" valign="top"></td></tr>
193	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
194	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> The Message Header Registry located at <http://www.iana.org/</span></td><td class="lineno" valign="top"></td></tr>
195	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> assignments/message-headers/message-header-index.html> should be</span></td><td class="lineno" valign="top"></td></tr>
196	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> updated with the permanent registrations below (see [RFC3864]):</span></td><td class="lineno" valign="top"></td></tr>
197	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
198	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> +-------------------+----------+----------+--------------+</span></td><td class="lineno" valign="top"></td></tr>
199	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Header Field Name \| Protocol \| Status \| Reference \|</span></td><td class="lineno" valign="top"></td></tr>
200	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> +-------------------+----------+----------+--------------+</span></td><td class="lineno" valign="top"></td></tr>
201	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Age \| http \| standard \| Section 16.1 \|</span></td><td class="lineno" valign="top"></td></tr>
202	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Cache-Control \| http \| standard \| Section 16.2 \|</span></td><td class="lineno" valign="top"></td></tr>
203	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Expires \| http \| standard \| Section 16.3 \|</span></td><td class="lineno" valign="top"></td></tr>
204	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Pragma \| http \| standard \| Section 16.4 \|</span></td><td class="lineno" valign="top"></td></tr>
205	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Vary \| http \| standard \| Section 16.5 \|</span></td><td class="lineno" valign="top"></td></tr>
206	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> \| Warning \| http \| standard \| Section 16.6 \|</span></td><td class="lineno" valign="top"></td></tr>
207	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> +-------------------+----------+----------+--------------+</span></td><td class="lineno" valign="top"></td></tr>
208	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
209	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> The change controller is: "IETF (iesg@ietf.org) - Internet</span></td><td class="lineno" valign="top"></td></tr>
210	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Engineering Task Force".</span></td><td class="lineno" valign="top"></td></tr>
211	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
212	<tr><td class="lineno" valign="top"></td><td class="left">18. Security Considerations</td><td> </td><td class="right">18. Security Considerations</td><td class="lineno" valign="top"></td></tr>
213	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
214	<tr><td class="lineno" valign="top"></td><td class="left"> Caching proxies provide additional potential vulnerabilities, since</td><td> </td><td class="right"> Caching proxies provide additional potential vulnerabilities, since</td><td class="lineno" valign="top"></td></tr>
215	<tr><td class="lineno" valign="top"></td><td class="left"> the contents of the cache represent an attractive target for</td><td> </td><td class="right"> the contents of the cache represent an attractive target for</td><td class="lineno" valign="top"></td></tr>
216	<tr><td class="lineno" valign="top"></td><td class="left"> malicious exploitation. Because cache contents persist after an HTTP</td><td> </td><td class="right"> malicious exploitation. Because cache contents persist after an HTTP</td><td class="lineno" valign="top"></td></tr>
217	<tr><td class="lineno" valign="top"></td><td class="left"> request is complete, an attack on the cache can reveal information</td><td> </td><td class="right"> request is complete, an attack on the cache can reveal information</td><td class="lineno" valign="top"></td></tr>
218	<tr><td class="lineno" valign="top"></td><td class="left"> long after a user believes that the information has been removed from</td><td> </td><td class="right"> long after a user believes that the information has been removed from</td><td class="lineno" valign="top"></td></tr>
219	<tr><td class="lineno" valign="top"></td><td class="left"> the network. Therefore, cache contents should be protected as</td><td> </td><td class="right"> the network. Therefore, cache contents should be protected as</td><td class="lineno" valign="top"></td></tr>
220	<tr><td class="lineno" valign="top"></td><td class="left"> sensitive information.</td><td> </td><td class="right"> sensitive information.</td><td class="lineno" valign="top"></td></tr>
221	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
222	<tr bgcolor="gray" ><td></td><th><a name="part-l5" /><small>skipping to change at</small><em> page 43, line 11</em></th><th> </th><th><a name="part-r5" /><small>skipping to change at</small><em> page 43, line 27</em></th><td></td></tr>
223	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
224	<tr><td class="lineno" valign="top"></td><td class="left"> [ISO-8859-1]</td><td> </td><td class="right"> [ISO-8859-1]</td><td class="lineno" valign="top"></td></tr>
225	<tr><td class="lineno" valign="top"></td><td class="left"> International Organization for Standardization,</td><td> </td><td class="right"> International Organization for Standardization,</td><td class="lineno" valign="top"></td></tr>
226	<tr><td class="lineno" valign="top"></td><td class="left"> "Information technology -- 8-bit single-byte coded graphic</td><td> </td><td class="right"> "Information technology -- 8-bit single-byte coded graphic</td><td class="lineno" valign="top"></td></tr>
227	<tr><td class="lineno" valign="top"></td><td class="left"> character sets -- Part 1: Latin alphabet No. 1", ISO/</td><td> </td><td class="right"> character sets -- Part 1: Latin alphabet No. 1", ISO/</td><td class="lineno" valign="top"></td></tr>
228	<tr><td class="lineno" valign="top"></td><td class="left"> IEC 8859-1:1998, 1998.</td><td> </td><td class="right"> IEC 8859-1:1998, 1998.</td><td class="lineno" valign="top"></td></tr>
229	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
230	<tr><td class="lineno" valign="top"></td><td class="left"> [Part1] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part1] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
231	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
232	<tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 1: URIs, Connections,</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 1: URIs, Connections,</td><td class="lineno" valign="top"></td></tr>
233	<tr><td><a name="diff0013" /></td></tr>
234	<tr><td class="lineno" valign="top"></td><td class="lblock"> and Message Parsing", draft-ietf-httpbis-p1-messaging-0<span class="delete">2</span></td><td> </td><td class="rblock"> and Message Parsing", draft-ietf-httpbis-p1-messaging-0<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
235	<tr><td class="lineno" valign="top"></td><td class="lblock"> (work in progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock"> (work in progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
236	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
237	<tr><td class="lineno" valign="top"></td><td class="left"> [Part2] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part2] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
238	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
239	<tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 2: Message</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 2: Message</td><td class="lineno" valign="top"></td></tr>
240	<tr><td><a name="diff0014" /></td></tr>
241	<tr><td class="lineno" valign="top"></td><td class="lblock"> Semantics", draft-ietf-httpbis-p2-semantics-0<span class="delete">2</span> (work in</td><td> </td><td class="rblock"> Semantics", draft-ietf-httpbis-p2-semantics-0<span class="insert">3</span> (work in</td><td class="lineno" valign="top"></td></tr>
242	<tr><td class="lineno" valign="top"></td><td class="lblock"> progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock"> progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
243	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
244	<tr><td class="lineno" valign="top"></td><td class="left"> [Part3] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part3] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
245	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
246	<tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 3: Message Payload</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 3: Message Payload</td><td class="lineno" valign="top"></td></tr>
247	<tr><td><a name="diff0015" /></td></tr>
248	<tr><td class="lineno" valign="top"></td><td class="lblock"> and Content Negotiation", draft-ietf-httpbis-p3-payload-0<span class="delete">2</span></td><td> </td><td class="rblock"> and Content Negotiation", draft-ietf-httpbis-p3-payload-0<span class="insert">3</span></td><td class="lineno" valign="top"></td></tr>
249	<tr><td class="lineno" valign="top"></td><td class="lblock"> (work in progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock"> (work in progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
250	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
251	<tr><td class="lineno" valign="top"></td><td class="left"> [Part4] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part4] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
252	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
253	<tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 4: Conditional</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 4: Conditional</td><td class="lineno" valign="top"></td></tr>
254	<tr><td><a name="diff0016" /></td></tr>
255	<tr><td class="lineno" valign="top"></td><td class="lblock"> Requests", draft-ietf-httpbis-p4-conditional-0<span class="delete">2</span> (work in</td><td> </td><td class="rblock"> Requests", draft-ietf-httpbis-p4-conditional-0<span class="insert">3</span> (work in</td><td class="lineno" valign="top"></td></tr>
256	<tr><td class="lineno" valign="top"></td><td class="lblock"> progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock"> progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
257	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
258	<tr><td class="lineno" valign="top"></td><td class="left"> [Part5] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part5] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
259	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
260	<tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 5: Range Requests and</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 5: Range Requests and</td><td class="lineno" valign="top"></td></tr>
261	<tr><td><a name="diff0017" /></td></tr>
262	<tr><td class="lineno" valign="top"></td><td class="lblock"> Partial Responses", draft-ietf-httpbis-p5-range-0<span class="delete">2</span> (work</td><td> </td><td class="rblock"> Partial Responses", draft-ietf-httpbis-p5-range-0<span class="insert">3</span> (work</td><td class="lineno" valign="top"></td></tr>
263	<tr><td class="lineno" valign="top"></td><td class="lblock"> in progress), <span class="delete">February</span> 2008.</td><td> </td><td class="rblock"> in progress), <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
264	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
265	<tr><td class="lineno" valign="top"></td><td class="left"> [Part7] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [Part7] Fielding, R., Ed., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
266	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td> </td><td class="right"> Masinter, L., Leach, P., Berners-Lee, T., Lafon, Y., Ed.,</td><td class="lineno" valign="top"></td></tr>
267	<tr><td class="lineno" valign="top"></td><td class="left"> and J. Reschke, Ed., "HTTP/1.1, part 7: Authentication",</td><td> </td><td class="right"> and J. Reschke, Ed., "HTTP/1.1, part 7: Authentication",</td><td class="lineno" valign="top"></td></tr>
268	<tr><td><a name="diff0018" /></td></tr>
269	<tr><td class="lineno" valign="top"></td><td class="lblock"> draft-ietf-httpbis-p7-auth-0<span class="delete">2</span> (work in progress),</td><td> </td><td class="rblock"> draft-ietf-httpbis-p7-auth-0<span class="insert">3</span> (work in progress),</td><td class="lineno" valign="top"></td></tr>
270	<tr><td class="lineno" valign="top"></td><td class="lblock"> <span class="delete">February</span> 2008.</td><td> </td><td class="rblock"> <span class="insert">June</span> 2008.</td><td class="lineno" valign="top"></td></tr>
271	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
272	<tr><td class="lineno" valign="top"></td><td class="left"> [RFC2047] Moore, K., "MIME (Multipurpose Internet Mail Extensions)</td><td> </td><td class="right"> [RFC2047] Moore, K., "MIME (Multipurpose Internet Mail Extensions)</td><td class="lineno" valign="top"></td></tr>
273	<tr><td class="lineno" valign="top"></td><td class="left"> Part Three: Message Header Extensions for Non-ASCII Text",</td><td> </td><td class="right"> Part Three: Message Header Extensions for Non-ASCII Text",</td><td class="lineno" valign="top"></td></tr>
274	<tr><td class="lineno" valign="top"></td><td class="left"> RFC 2047, November 1996.</td><td> </td><td class="right"> RFC 2047, November 1996.</td><td class="lineno" valign="top"></td></tr>
275	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
276	<tr><td class="lineno" valign="top"></td><td class="left"> [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate</td><td> </td><td class="right"> [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate</td><td class="lineno" valign="top"></td></tr>
277	<tr><td class="lineno" valign="top"></td><td class="left"> Requirement Levels", BCP 14, RFC 2119, March 1997.</td><td> </td><td class="right"> Requirement Levels", BCP 14, RFC 2119, March 1997.</td><td class="lineno" valign="top"></td></tr>
278	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
279	<tr><td class="lineno" valign="top"></td><td class="left">20.2. Informative References</td><td> </td><td class="right">20.2. Informative References</td><td class="lineno" valign="top"></td></tr>
280	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
281	<tr><td class="lineno" valign="top"></td><td class="left"> [RFC1305] Mills, D., "Network Time Protocol (Version 3)</td><td> </td><td class="right"> [RFC1305] Mills, D., "Network Time Protocol (Version 3)</td><td class="lineno" valign="top"></td></tr>
282	<tr><td class="lineno" valign="top"></td><td class="left"> Specification, Implementation", RFC 1305, March 1992.</td><td> </td><td class="right"> Specification, Implementation", RFC 1305, March 1992.</td><td class="lineno" valign="top"></td></tr>
283	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
284	<tr><td class="lineno" valign="top"></td><td class="left"> [RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td> </td><td class="right"> [RFC2616] Fielding, R., Gettys, J., Mogul, J., Frystyk, H.,</td><td class="lineno" valign="top"></td></tr>
285	<tr><td class="lineno" valign="top"></td><td class="left"> Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td> </td><td class="right"> Masinter, L., Leach, P., and T. Berners-Lee, "Hypertext</td><td class="lineno" valign="top"></td></tr>
286	<tr><td class="lineno" valign="top"></td><td class="left"> Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td> </td><td class="right"> Transfer Protocol -- HTTP/1.1", RFC 2616, June 1999.</td><td class="lineno" valign="top"></td></tr>
287	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
288	<tr><td><a name="diff0019" /></td></tr>
289	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> [RFC3864] Klyne, G., Nottingham, M., and J. Mogul, "Registration</span></td><td class="lineno" valign="top"></td></tr>
290	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Procedures for Message Header Fields", BCP 90, RFC 3864,</span></td><td class="lineno" valign="top"></td></tr>
291	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> September 2004.</span></td><td class="lineno" valign="top"></td></tr>
292	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
293	<tr><td class="lineno" valign="top"></td><td class="left">Appendix A. Compatibility with Previous Versions</td><td> </td><td class="right">Appendix A. Compatibility with Previous Versions</td><td class="lineno" valign="top"></td></tr>
294	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
295	<tr><td class="lineno" valign="top"></td><td class="left">A.1. Changes from RFC 2068</td><td> </td><td class="right">A.1. Changes from RFC 2068</td><td class="lineno" valign="top"></td></tr>
296	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
297	<tr><td class="lineno" valign="top"></td><td class="left"> A case was missed in the Cache-Control model of HTTP/1.1; s-maxage</td><td> </td><td class="right"> A case was missed in the Cache-Control model of HTTP/1.1; s-maxage</td><td class="lineno" valign="top"></td></tr>
298	<tr><td class="lineno" valign="top"></td><td class="left"> was introduced to add this missing case. (Sections 6, 16.2, 16.2.3)</td><td> </td><td class="right"> was introduced to add this missing case. (Sections 6, 16.2, 16.2.3)</td><td class="lineno" valign="top"></td></tr>
299	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
300	<tr><td class="lineno" valign="top"></td><td class="left"> Transfer-coding and message lengths all interact in ways that</td><td> </td><td class="right"> Transfer-coding and message lengths all interact in ways that</td><td class="lineno" valign="top"></td></tr>
301	<tr><td class="lineno" valign="top"></td><td class="left"> required fixing exactly when chunked encoding is used (to allow for</td><td> </td><td class="right"> required fixing exactly when chunked encoding is used (to allow for</td><td class="lineno" valign="top"></td></tr>
302	<tr><td class="lineno" valign="top"></td><td class="left"> transfer encoding that may not be self delimiting); it was important</td><td> </td><td class="right"> transfer encoding that may not be self delimiting); it was important</td><td class="lineno" valign="top"></td></tr>
303	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
304	<tr bgcolor="gray" ><td></td><th><a name="part-l6" /><small>skipping to change at</small><em> page 46, line 4</em></th><th> </th><th><a name="part-r6" /><small>skipping to change at</small><em> page 46, line 21</em></th><td></td></tr>
305	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
306	<tr><td class="lineno" valign="top"></td><td class="left"> o Use names of RFC4234 core rules DQUOTE and HTAB (work in progress</td><td> </td><td class="right"> o Use names of RFC4234 core rules DQUOTE and HTAB (work in progress</td><td class="lineno" valign="top"></td></tr>
307	<tr><td class="lineno" valign="top"></td><td class="left"> on <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/36>)</td><td> </td><td class="right"> on <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/36>)</td><td class="lineno" valign="top"></td></tr>
308	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
309	<tr><td class="lineno" valign="top"></td><td class="left">B.3. Since draft-ietf-httpbis-p6-cache-01</td><td> </td><td class="right">B.3. Since draft-ietf-httpbis-p6-cache-01</td><td class="lineno" valign="top"></td></tr>
310	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
311	<tr><td class="lineno" valign="top"></td><td class="left"> Closed issues:</td><td> </td><td class="right"> Closed issues:</td><td class="lineno" valign="top"></td></tr>
312	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
313	<tr><td class="lineno" valign="top"></td><td class="left"> o <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/82>: "rel_path</td><td> </td><td class="right"> o <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/82>: "rel_path</td><td class="lineno" valign="top"></td></tr>
314	<tr><td class="lineno" valign="top"></td><td class="left"> not used"</td><td> </td><td class="right"> not used"</td><td class="lineno" valign="top"></td></tr>
315	<tr><td><a name="diff0020" /></td></tr>
316	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
317	<tr><td class="lineno" valign="top"></td><td class="left"> Other changes:</td><td> </td><td class="right"> Other changes:</td><td class="lineno" valign="top"></td></tr>
318	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
319	<tr><td class="lineno" valign="top"></td><td class="left"> o Get rid of duplicate BNF rule names ("host" -> "uri-host") (work</td><td> </td><td class="right"> o Get rid of duplicate BNF rule names ("host" -> "uri-host") (work</td><td class="lineno" valign="top"></td></tr>
320	<tr><td class="lineno" valign="top"></td><td class="left"> in progress on</td><td> </td><td class="right"> in progress on</td><td class="lineno" valign="top"></td></tr>
321	<tr><td class="lineno" valign="top"></td><td class="left"> <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/36>)</td><td> </td><td class="right"> <http://www3.tools.ietf.org/wg/httpbis/trac/ticket/36>)</td><td class="lineno" valign="top"></td></tr>
322	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
323	<tr><td class="lineno" valign="top"></td><td class="left"> o Add explicit references to BNF syntax and rules imported from</td><td> </td><td class="right"> o Add explicit references to BNF syntax and rules imported from</td><td class="lineno" valign="top"></td></tr>
324	<tr><td class="lineno" valign="top"></td><td class="left"> other parts of the specification.</td><td> </td><td class="right"> other parts of the specification.</td><td class="lineno" valign="top"></td></tr>
325	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
326	<tr><td><a name="diff0021" /></td></tr>
327	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert">B.4. Since draft-ietf-httpbis-p6-cache-02</span></td><td class="lineno" valign="top"></td></tr>
328	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
329	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> Ongoing work on IANA Message Header Registration</span></td><td class="lineno" valign="top"></td></tr>
330	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> (<http://www3.tools.ietf.org/wg/httpbis/trac/ticket/40>):</span></td><td class="lineno" valign="top"></td></tr>
331	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
332	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> o Reference RFC 3984, and update header registrations for headers</span></td><td class="lineno" valign="top"></td></tr>
333	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> defined in this document.</span></td><td class="lineno" valign="top"></td></tr>
334	<tr><td class="lineno" valign="top"></td><td class="lblock"></td><td> </td><td class="rblock"><span class="insert"> </span></td><td class="lineno" valign="top"></td></tr>
335	<tr><td class="lineno" valign="top"></td><td class="left">Index</td><td> </td><td class="right">Index</td><td class="lineno" valign="top"></td></tr>
336	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
337	<tr><td class="lineno" valign="top"></td><td class="left"> A</td><td> </td><td class="right"> A</td><td class="lineno" valign="top"></td></tr>
338	<tr><td class="lineno" valign="top"></td><td class="left"> age 7</td><td> </td><td class="right"> age 7</td><td class="lineno" valign="top"></td></tr>
339	<tr><td class="lineno" valign="top"></td><td class="left"> Age header 27</td><td> </td><td class="right"> Age header 27</td><td class="lineno" valign="top"></td></tr>
340	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
341	<tr><td class="lineno" valign="top"></td><td class="left"> C</td><td> </td><td class="right"> C</td><td class="lineno" valign="top"></td></tr>
342	<tr><td class="lineno" valign="top"></td><td class="left"> cache 5</td><td> </td><td class="right"> cache 5</td><td class="lineno" valign="top"></td></tr>
343	<tr><td class="lineno" valign="top"></td><td class="left"> Cache Directives</td><td> </td><td class="right"> Cache Directives</td><td class="lineno" valign="top"></td></tr>
344	<tr><td><a name="diff0022" /></td></tr>
345	<tr><td class="lineno" valign="top"></td><td class="lblock"> max-age 32</td><td> </td><td class="rblock"> max-age 32<span class="insert">-33</span></td><td class="lineno" valign="top"></td></tr>
346	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> max-age 33</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
347	<tr><td class="lineno" valign="top"></td><td class="left"> max-stale 32</td><td> </td><td class="right"> max-stale 32</td><td class="lineno" valign="top"></td></tr>
348	<tr><td class="lineno" valign="top"></td><td class="left"> min-fresh 32</td><td> </td><td class="right"> min-fresh 32</td><td class="lineno" valign="top"></td></tr>
349	<tr><td class="lineno" valign="top"></td><td class="left"> must-revalidate 34</td><td> </td><td class="right"> must-revalidate 34</td><td class="lineno" valign="top"></td></tr>
350	<tr><td class="lineno" valign="top"></td><td class="left"> no-cache 29</td><td> </td><td class="right"> no-cache 29</td><td class="lineno" valign="top"></td></tr>
351	<tr><td class="lineno" valign="top"></td><td class="left"> no-store 30</td><td> </td><td class="right"> no-store 30</td><td class="lineno" valign="top"></td></tr>
352	<tr><td class="lineno" valign="top"></td><td class="left"> no-transform 35</td><td> </td><td class="right"> no-transform 35</td><td class="lineno" valign="top"></td></tr>
353	<tr><td class="lineno" valign="top"></td><td class="left"> only-if-cached 34</td><td> </td><td class="right"> only-if-cached 34</td><td class="lineno" valign="top"></td></tr>
354	<tr><td class="lineno" valign="top"></td><td class="left"> private 29</td><td> </td><td class="right"> private 29</td><td class="lineno" valign="top"></td></tr>
355	<tr><td class="lineno" valign="top"></td><td class="left"> proxy-revalidate 35</td><td> </td><td class="right"> proxy-revalidate 35</td><td class="lineno" valign="top"></td></tr>
356	<tr><td class="lineno" valign="top"></td><td class="left"> public 29</td><td> </td><td class="right"> public 29</td><td class="lineno" valign="top"></td></tr>
357	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
358	<tr bgcolor="gray" ><td></td><th><a name="part-l7" /><small>skipping to change at</small><em> page 47, line 34</em></th><th> </th><th><a name="part-r7" /><small>skipping to change at</small><em> page 48, line 11</em></th><td></td></tr>
359	<tr><td class="lineno" valign="top"></td><td class="left"> Age 27</td><td> </td><td class="right"> Age 27</td><td class="lineno" valign="top"></td></tr>
360	<tr><td class="lineno" valign="top"></td><td class="left"> Cache-Control 27</td><td> </td><td class="right"> Cache-Control 27</td><td class="lineno" valign="top"></td></tr>
361	<tr><td class="lineno" valign="top"></td><td class="left"> Expires 37</td><td> </td><td class="right"> Expires 37</td><td class="lineno" valign="top"></td></tr>
362	<tr><td class="lineno" valign="top"></td><td class="left"> Pragma 38</td><td> </td><td class="right"> Pragma 38</td><td class="lineno" valign="top"></td></tr>
363	<tr><td class="lineno" valign="top"></td><td class="left"> Vary 38</td><td> </td><td class="right"> Vary 38</td><td class="lineno" valign="top"></td></tr>
364	<tr><td class="lineno" valign="top"></td><td class="left"> Warning 39</td><td> </td><td class="right"> Warning 39</td><td class="lineno" valign="top"></td></tr>
365	<tr><td class="lineno" valign="top"></td><td class="left"> heuristic expiration time 7</td><td> </td><td class="right"> heuristic expiration time 7</td><td class="lineno" valign="top"></td></tr>
366	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
367	<tr><td class="lineno" valign="top"></td><td class="left"> M</td><td> </td><td class="right"> M</td><td class="lineno" valign="top"></td></tr>
368	<tr><td class="lineno" valign="top"></td><td class="left"> max-age</td><td> </td><td class="right"> max-age</td><td class="lineno" valign="top"></td></tr>
369	<tr><td><a name="diff0023" /></td></tr>
370	<tr><td class="lineno" valign="top"></td><td class="lblock"> Cache Directive 32</td><td> </td><td class="rblock"> Cache Directive 32<span class="insert">-33</span></td><td class="lineno" valign="top"></td></tr>
371	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> Cache Directive 33</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
372	<tr><td class="lineno" valign="top"></td><td class="left"> max-stale</td><td> </td><td class="right"> max-stale</td><td class="lineno" valign="top"></td></tr>
373	<tr><td class="lineno" valign="top"></td><td class="left"> Cache Directive 32</td><td> </td><td class="right"> Cache Directive 32</td><td class="lineno" valign="top"></td></tr>
374	<tr><td class="lineno" valign="top"></td><td class="left"> min-fresh</td><td> </td><td class="right"> min-fresh</td><td class="lineno" valign="top"></td></tr>
375	<tr><td class="lineno" valign="top"></td><td class="left"> Cache Directive 32</td><td> </td><td class="right"> Cache Directive 32</td><td class="lineno" valign="top"></td></tr>
376	<tr><td class="lineno" valign="top"></td><td class="left"> must-revalidate</td><td> </td><td class="right"> must-revalidate</td><td class="lineno" valign="top"></td></tr>
377	<tr><td class="lineno" valign="top"></td><td class="left"> Cache Directive 34</td><td> </td><td class="right"> Cache Directive 34</td><td class="lineno" valign="top"></td></tr>
378	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
379	<tr><td class="lineno" valign="top"></td><td class="left"> N</td><td> </td><td class="right"> N</td><td class="lineno" valign="top"></td></tr>
380	<tr><td class="lineno" valign="top"></td><td class="left"> no-cache</td><td> </td><td class="right"> no-cache</td><td class="lineno" valign="top"></td></tr>
381	<tr><td class="lineno" valign="top"></td><td class="left"> Cache Directive 29</td><td> </td><td class="right"> Cache Directive 29</td><td class="lineno" valign="top"></td></tr>
382	<tr><td class="lineno"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno"></td></tr>
383	<tr bgcolor="gray" ><td></td><th><a name="part-l8" /><small>skipping to change at</small><em> page 51, line 44</em></th><th> </th><th><a name="part-r8" /><small>skipping to change at</small><em> line 2337</em></th><td></td></tr>
384	<tr><td class="lineno" valign="top"></td><td class="left"> attempt made to obtain a general license or permission for the use of</td><td> </td><td class="right"> attempt made to obtain a general license or permission for the use of</td><td class="lineno" valign="top"></td></tr>
385	<tr><td class="lineno" valign="top"></td><td class="left"> such proprietary rights by implementers or users of this</td><td> </td><td class="right"> such proprietary rights by implementers or users of this</td><td class="lineno" valign="top"></td></tr>
386	<tr><td class="lineno" valign="top"></td><td class="left"> specification can be obtained from the IETF on-line IPR repository at</td><td> </td><td class="right"> specification can be obtained from the IETF on-line IPR repository at</td><td class="lineno" valign="top"></td></tr>
387	<tr><td class="lineno" valign="top"></td><td class="left"> http://www.ietf.org/ipr.</td><td> </td><td class="right"> http://www.ietf.org/ipr.</td><td class="lineno" valign="top"></td></tr>
388	<tr><td class="lineno" valign="top"></td><td class="left"></td><td> </td><td class="right"></td><td class="lineno" valign="top"></td></tr>
389	<tr><td class="lineno" valign="top"></td><td class="left"> The IETF invites any interested party to bring to its attention any</td><td> </td><td class="right"> The IETF invites any interested party to bring to its attention any</td><td class="lineno" valign="top"></td></tr>
390	<tr><td class="lineno" valign="top"></td><td class="left"> copyrights, patents or patent applications, or other proprietary</td><td> </td><td class="right"> copyrights, patents or patent applications, or other proprietary</td><td class="lineno" valign="top"></td></tr>
391	<tr><td class="lineno" valign="top"></td><td class="left"> rights that may cover technology that may be required to implement</td><td> </td><td class="right"> rights that may cover technology that may be required to implement</td><td class="lineno" valign="top"></td></tr>
392	<tr><td class="lineno" valign="top"></td><td class="left"> this standard. Please address the information to the IETF at</td><td> </td><td class="right"> this standard. Please address the information to the IETF at</td><td class="lineno" valign="top"></td></tr>
393	<tr><td class="lineno" valign="top"></td><td class="left"> ietf-ipr@ietf.org.</td><td> </td><td class="right"> ietf-ipr@ietf.org.</td><td class="lineno" valign="top"></td></tr>
394	<tr><td><a name="diff0024" /></td></tr>
395	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
396	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete">Acknowledgment</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
397	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> </span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
398	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> Funding for the RFC Editor function is provided by the IETF</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
399	<tr><td class="lineno" valign="top"></td><td class="lblock"><span class="delete"> Administrative Support Activity (IASA).</span></td><td> </td><td class="rblock"></td><td class="lineno" valign="top"></td></tr>
400
401	<tr><td></td><td class="left"></td><td> </td><td class="right"></td><td></td></tr>
402	<tr bgcolor="gray"><th colspan="5" align="center"><a name="end"> End of changes. 24 change blocks. </a></th></tr>
403	<tr class="stats"><td></td><th><i>38 lines changed or deleted</i></th><th><i> </i></th><th><i>61 lines changed or added</i></th><td></td></tr>
404	<tr><td colspan="5" align="center" class="small"><br/>This html diff was produced by rfcdiff 1.34. The latest version is available from <a href="http://www.tools.ietf.org/tools/rfcdiff/" >http://tools.ietf.org/tools/rfcdiff/</a> </td></tr>
405	</table>
406	</body>
407	</html>

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