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<p>Please find them attached.</p>
<p><br>
</p>
<p>Ashlesh<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Junxiao Shi <shijunxiao@email.arizona.edu><br>
<b>Sent:</b> Tuesday, June 28, 2016 6:01:18 PM<br>
<b>To:</b> Ashlesh Gawande (agawande)<br>
<b>Cc:</b> Lan Wang (lanwang); nfd-dev@lists.cs.ucla.edu<br>
<b>Subject:</b> Re: [Nfd-dev] Help needed with debugging duplicate Nonce</font>
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<div dir="ltr">Hi Ashlesh
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<div>Can you attach complete pcap traces including those collected on network links and local links?</div>
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<div>Yours, Junxiao<br>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jun 28, 2016 at 10:29 AM, Ashlesh Gawande (agawande)
<span dir="ltr"><<a href="mailto:agawande@memphis.edu" target="_blank">agawande@memphis.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>Confirmed that this is happening because node b has the same (sync) interest and hence forwards the interest to a resulting in a NACK.</p>
<p><br>
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<p>Ashlesh</p>
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<div dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nfd-dev <<a href="mailto:nfd-dev-bounces@lists.cs.ucla.edu" target="_blank">nfd-dev-bounces@lists.cs.ucla.edu</a>> on behalf of Ashlesh Gawande (agawande) <<a href="mailto:agawande@memphis.edu" target="_blank">agawande@memphis.edu</a>><br>
<b>Sent:</b> Tuesday, June 28, 2016 10:48:35 AM<br>
<b>To:</b> Lan Wang (lanwang); Junxiao Shi<br>
<b>Cc:</b> <a href="mailto:nfd-dev@lists.cs.ucla.edu" target="_blank">nfd-dev@lists.cs.ucla.edu</a>
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<div class="h5"><br>
<b>Subject:</b> Re: [Nfd-dev] Help needed with debugging duplicate Nonce</div>
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<p>Have attached proof for the said observation.</p>
<p><br>
</p>
<p></p>
<div>tmp-localhost_6_27$ grep --color=always 927845950 */ndndump* | sort -t: -k2<br>
c/ndndump.c-eth0_1.0.0.10.pcap:1467054254.052399 From: 1.0.0.10, To: 1.0.0.9, Tunnel Type: UDP, INTEREST: /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
b/ndndump.b-eth1_1.0.0.9.pcap:1467054254.052424 From: 1.0.0.10, To: 1.0.0.9, Tunnel Type: UDP, INTEREST: /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
c/ndndump.c-eth1_1.0.0.6.pcap:1467054254.052428 From: 1.0.0.6, To: 1.0.0.5, Tunnel Type: UDP, INTEREST: /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
a/ndndump.a-eth1_1.0.0.5.pcap:1467054254.052436 From: 1.0.0.6, To: 1.0.0.5, Tunnel Type: UDP, INTEREST: /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
b/ndndump.b-eth0_1.0.0.2.pcap:1467054257.955331 From: 1.0.0.2, To: 1.0.0.1, Tunnel Type: UDP, INTEREST: /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
a/ndndump.a-eth0_1.0.0.1.pcap:1467054257.955348 From: 1.0.0.2, To: 1.0.0.1, Tunnel Type: UDP, INTEREST: /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
a/ndndump.a-eth0_1.0.0.1.pcap:1467054257.965760 From: 1.0.0.1, To: 1.0.0.2, Tunnel Type: UDP, NACK: Duplicate, /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
b/ndndump.b-eth0_1.0.0.2.pcap:1467054257.965760 From: 1.0.0.1, To: 1.0.0.2, Tunnel Type: UDP, NACK: Duplicate, /localhop/NLSR/sync/e4c858598a526f7f25d42f4da49cb51b7950cf352e26d5092bd35126b509101b?ndn.MustBeFresh=1&ndn.Nonce=927845950<br>
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<p></p>
<p><br>
</p>
<p>1) c to b</p>
<p>2) c to a<br>
</p>
<p>3) b to a<br>
</p>
<p>4) a responds with duplicate NACK<br>
</p>
<br>
<p>Meanwhile I will also try to test Junxiao's suggestion by forcing communication over TCP and make sure that this is because of local sync expressing the same interest.<br>
</p>
<br>
Ashlesh<br>
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