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<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">I have some conceptual questions about freshness and how to ask for latest content.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">Imagine 2 properly versioned versions of /nytimes/frontpage (properly in the sense of “larger” version = “newer” version, according to [1]):<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">format : contentName | freshnessPeriod<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">/nytimes/frontpage/v100 | 100ms [stored at cache X somewhere between requester and producer]<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">/nytimes/frontpage/v105 | 300ms [stored at producer]</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">I assume that if a user does only know about the contentName (prefix), but not about the latest versionNumber, he/she asks for<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">Interest: /nytimes/frontpage | CanBePrefix=true | MustBeFresh=true</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Question 1:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Is it correct that this Interest is satisfied by cache X because there is a prefix match on the contentName and a freshnessPeriod
> 0?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Question 2:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Assuming the answer to Q1 is ‘yes’ and that the reuqester does NOT know the latest versionNumber, is there really no possibility
for the requester to get the globally latest version v105 directly from the producer?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Question 3:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Assuming that the requester KNOWS the latest versionNumber (from some miraculous oracle), I guess she/he can simply ask for (</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif">/nytimes/frontpage/v105
| CanBePrefix=false | MustBeFresh=true</span><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">). Correct?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">Urs<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;font-family:"Malgun Gothic",sans-serif;mso-fareast-language:DE-CH">[1]
<a href="http://named-data.net/wp-content/uploads/2014/08/ndn-tr-22-ndn-memo-naming-conventions.pdf">
http://named-data.net/wp-content/uploads/2014/08/ndn-tr-22-ndn-memo-naming-conventions.pdf</a><o:p></o:p></span></p>
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