<div dir="ltr"><div>Hi Andre</div><div><br></div><div>How much hardware resources did you allocate to the topology?</div><div>Since you have 8 nodes, you need at least 8 CPU cores and 8GB RAM for a smooth operation.<br></div><div><br></div><div>If you are using ndn-cxx/examples/consumer-with-timer.cpp unchanged: each invocation of this program sends 2 Interests, and then the program exits.<br></div><div>Forking and joining all those short-lived processes, as well as NFD accepting and closing the faces, would cause significant overhead.</div><div>You should instead use a long-lived consumer program, such as the ndnping client.<br></div><div><br></div><div>Yours, Junxiao<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Apr 19, 2021 at 9:36 PM Andre via Mini-NDN <<a href="mailto:mini-ndn@lists.cs.ucla.edu" target="_blank">mini-ndn@lists.cs.ucla.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div><p style="text-align:center"><font color="red"><strong>External Email</strong><br></font></p>
<p> Hi</p>
<p><br>
</p>
<p>I am running a simple experiment generating traffic between nodes
in the following topology, where all links have 10ms delay and
10mbits/s of bandwidth.<br>
</p>
<p><br>
</p>
<p><img src="cid:178ecf30b42d8600ee11" alt=""></p>
<p><br>
</p>
<p>I am running the default producer and consumer-with-timer from
the ndn-cxx examples to randomly generate traffic flow between
nodes. I am having an issue where, after a few seconds of only
successful transfers, every consumer starts timing out on every
request. <br>
</p>
<p>When each consumer requests a packet every 100 milliseconds, I
get about 20 timeouts for every successful transfer. As I raise
this period, things get better and by a period of 1 second, I get
no timeouts. So it seems that there is some limitation to how much
can be consumed or produced.</p>
<p>So I am wondering, why does this happen? Is it a limitation of
the consumer or the producer from ndn-cxx? Or is it related to the
network emulation?</p>
<p><br>
</p>
<p>Thanks in advance,</p>
<p>André Dexheimer Carneiro<br>
</p>
<p><br>
</p>
<p><br>
</p>
</div>
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