Changeset 792 for draft-ietf-httpbis/latest/p6-cache.xml
- Timestamp:
- 17/03/10 10:11:28 (11 years ago)
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- 1 edited
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draft-ietf-httpbis/latest/p6-cache.xml
r786 r792 687 687 <t>the "apparent_age": response_time minus date_value, if the local clock is reasonably well synchronized to the 688 688 origin server's clock. If the result is negative, the result is replaced by zero.</t> 689 <t>age_value, if all of the caches along the response path implement HTTP/1.1.</t> 690 </list> 691 </t> 689 <t>the "corrected_age_value", if all of the caches along the response path implement HTTP/1.1; 690 note this value &MUST; be interpreted relative to the time the 691 request was initiated, not the time that the response was received.</t> 692 </list> 693 </t> 694 <figure> 695 <artwork type="code"> 696 apparent_age = max(0, response_time - date_value); 697 698 response_delay = response_time - request_time; 699 corrected_age_value = age_value + response_delay; 700 </artwork> 701 </figure> 692 702 <figure> 693 703 <preamble>These are combined as</preamble> 694 704 <artwork type="code"> 695 apparent_age = max(0, response_time - date_value); 696 corrected_received_age = max(apparent_age, age_value); 697 </artwork></figure> 698 <t> 699 When an Age value is received, it &MUST; be interpreted relative to the time the 700 request was initiated, not the time that the response was received. 701 </t> 702 <figure><artwork type="code"> 703 response_delay = response_time - request_time; 704 corrected_initial_age = corrected_received_age + response_delay; 705 corrected_initial_age = max(apparent_age, corrected_age_value); 705 706 </artwork></figure> 706 707 <t> … … 2330 2331 <section title="Since draft-ietf-httpbis-p6-cache-09" anchor="changes.since.09"> 2331 2332 <t> 2332 No significant changes. 2333 Closed issues: 2334 <list style="symbols"> 2335 <t> 2336 <eref target="http://tools.ietf.org/wg/httpbis/trac/ticket/29" />: 2337 "Age calculation" 2338 </t> 2339 </list> 2333 2340 </t> 2334 2341 </section>
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