<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:等线;
panose-1:2 1 6 0 3 1 1 1 1 1;}
@font-face
{font-family:"\@等线";
panose-1:2 1 6 0 3 1 1 1 1 1;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:等线;
mso-ligatures:standardcontextual;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:等线;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
/* Page Definitions */
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="ZH-CN" link="#467886" vlink="#96607D" style="word-wrap:break-word;text-justify-trim:punctuation">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Hi,,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">I’m trying some examples provided by mini-ndn. “mnndn.py” does not work well. It gives me the following error report.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">caster@ubuntu:~/Downloads/mini-ndn/mini-ndn$ sudo python3 examples/mnndn.py<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Using topology file /usr/local/etc/mini-ndn/default-topology.conf<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Creating network<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding controller<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding hosts:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">a b c d
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding switches:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding links:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">(10ms delay) (10ms delay) (a, b) (10ms delay) (10ms delay) (a, c) (10ms delay) (10ms delay) (b, d)
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Configuring hosts<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">a b c d
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Starting controller<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">c0
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Starting 0 switches<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Starting NFD on nodes<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Starting NLSR on nodes<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">[c] Face register failed: face-updated id=260 local=udp4://10.0.0.6:6363 remote=udp4://10.0.0.5:6363 persistency=permanent reliability=off congestion-marking=on congestion-marking-interval=100ms
default-congestion-threshold=65536B mtu=8800<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">[d] Face register failed: face-updated id=260 local=udp4://10.0.0.10:6363 remote=udp4://10.0.0.9:6363 persistency=permanent reliability=off congestion-marking=on congestion-marking-interval=100ms
default-congestion-threshold=65536B mtu=8800<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Starting CLI:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">So I check the nfd status using “nfd-status”, it gives me the following.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">caster@ubuntu:~/Downloads/mini-ndn/mini-ndn$ nfd-status<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">error while connecting to the forwarder (No such file or directory)<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Then I tried another example - examples/nlsr/pingall.py. It seems there’s still some errors as 2 nodes registered failed. But nlsr is able to converge. Please see the log below.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">caster@ubuntu:~/Downloads$ sudo python3 mini-ndn/mini-ndn/examples/nlsr/pingall.py<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Using topology file /usr/local/etc/mini-ndn/default-topology.conf<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Creating network<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding controller<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding hosts:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">a b c d
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding switches:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Adding links:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">(10ms delay) (10ms delay) (a, b) (10ms delay) (10ms delay) (a, c) (10ms delay) (10ms delay) (b, d)
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Configuring hosts<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">a b c d
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Starting controller<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">c0
<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Starting 0 switches<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">[c] Face register failed: face-updated id=260 local=udp4://10.0.0.6:6363 remote=udp4://10.0.0.5:6363 persistency=permanent reliability=off congestion-marking=on congestion-marking-interval=100ms
default-congestion-threshold=65536B mtu=8800<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">[d] Face register failed: face-updated id=260 local=udp4://10.0.0.10:6363 remote=udp4://10.0.0.9:6363 persistency=permanent reliability=off congestion-marking=on congestion-marking-interval=100ms
default-congestion-threshold=65536B mtu=8800<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Waiting 60 seconds for convergence...<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">...done<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">NLSR has converged successfully.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Staring ping server on prefix /ndn/a-site/a<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Staring ping server on prefix /ndn/b-site/b<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Staring ping server on prefix /ndn/c-site/c<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Staring ping server on prefix /ndn/d-site/d<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Each node will ping 4 node(s)<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from a for /ndn/b-site/b<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from a for /ndn/c-site/c<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from a for /ndn/d-site/d<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from b for /ndn/c-site/c<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from b for /ndn/d-site/d<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from b for /ndn/a-site/a<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from c for /ndn/d-site/d<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from c for /ndn/a-site/a<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from c for /ndn/b-site/b<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from d for /ndn/a-site/a<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from d for /ndn/b-site/b<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">Scheduling ping(s) from d for /ndn/c-site/c<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">*** Starting CLI:<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">mini-ndn> a echo "hello"<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">hello<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif">mini-ndn><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">I’m confused about the results. Is there something wrong with my mini-ndn environment?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Many thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Arial",sans-serif">Caster<o:p></o:p></span></p>
</div>
</body>
</html>