<p>Hi Chaim</p>
<p>There isn't a timestamp on Data packet at network layer.<br>
If your application needs it, add a timestamp at application layer as part of Content.</p>
<p>Yours, Junxiao</p>
<div class="gmail_quote">On Feb 5, 2015 12:32 PM, "Chaim Rieger" <<a href="mailto:chaim.rieger@gmail.com">chaim.rieger@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">-----BEGIN PGP SIGNED MESSAGE-----<br>
Hash: SHA1<br>
<br>
When generating data that is for multicasting/distribution on an<br>
interactive level how would ndn keep track of the time across the<br>
network. Data has a requirement to be delivered and interacted with at<br>
a certain time after which it should expire or be ignored. Is there<br>
some sort of timekeeping within the NDN protocol ?<br>
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</blockquote></div>