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Hi Spyros,</div>
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Thanks for the reply. Why did it get abandoned? It should be very useful for wireless research. Can you please share the link (gerrit) of the patch?</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Spyridon Mastorakis <smastorakis@unomaha.edu><br>
<b>Sent:</b> Thursday, June 25, 2020 6:58 PM<br>
<b>To:</b> Muktadir R Chowdhury (mrchwdhr) <mrchwdhr@memphis.edu><br>
<b>Cc:</b> ndnsim <ndnsim@lists.cs.ucla.edu><br>
<b>Subject:</b> Re: [ndnSIM] wifi simulation with access point</font>
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<div class="" style="word-wrap:break-word; line-break:after-white-space">The FIB helper works only with wired (p2p) links if I recall correctly. It will not work with wireless links. I had pushed a patch for that on gerrit probably a couple of years ago, but
it got abandoned a few weeks ago.
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<div class="">Thanks,</div>
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<div>Spyridon (Spyros) Mastorakis<br class="">
Assistant Professor<br class="">
Computer Science Department<br class="">
University of Nebraska, Omaha<br class="">
Peter Kiewit Institute Room 175A<br class="">
<a href="https://sites.google.com/site/spyridonmastorakis" class="">https://sites.google.com/site/spyridonmastorakis</a><br class="">
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<div class="">On Jun 25, 2020, at 6:56 PM, Muktadir R Chowdhury (mrchwdhr) <<a href="mailto:mrchwdhr@memphis.edu" class="">mrchwdhr@memphis.edu</a>> wrote:</div>
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I have three nodes: two stations and one access point. Which I created in the following way:</div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>NodeContainer wifiStaNodes;</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>wifiStaNodes.Create (2);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span></span><span class="" style="font-variant-ligatures:no-common-ligatures">NodeContainer wifiApNode;</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>wifiApNode.Create (</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">1</span><span class="" style="font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class="" style="font-family:monaco; font-size:9pt; color:rgb(241,241,240); background-color:rgba(0,0,0,0)"> </span></span><span class="" style="font-variant-ligatures:no-common-ligatures; font-family:monaco; font-size:9pt; color:rgb(241,241,240); background-color:rgba(0,0,0,0)"></span></p>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>YansWifiChannelHelper wifiChannel = YansWifiChannelHelper::Default ();<span class=""> </span></span></div>
<div class="" style="margin:0px; font-style:normal; font-variant-caps:normal; font-weight:normal; font-stretch:normal; font-size:12px; line-height:normal; font-family:Monaco; color:rgb(230,104,79); background-color:rgb(47,42,43)">
<span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>wifiChannel.SetPropagationDelay(</span><span class="" style="font-variant-ligatures:no-common-ligatures">"ns3::ConstantSpeedPropagationDelayModel"</span><span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>wifiChannel.AddPropagationLoss (</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"ns3::RangePropagationLossModel"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"MaxRange"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,
DoubleValue(</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">50</span><span class="" style="font-variant-ligatures:no-common-ligatures">));</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>YansWifiPhyHelper phy = YansWifiPhyHelper::Default ();<span class=""> </span></span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>phy.SetChannel (wifiChannel.Create());</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"></span><br class="">
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<span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>WifiHelper wifi; </span></div>
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<span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>wifi.SetRemoteStationManager(</span><span class="" style="font-variant-ligatures:no-common-ligatures">"ns3::ConstantRateWifiManager"</span><span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures">,<span class="x_Apple-converted-space"> </span></span><span class="" style="font-variant-ligatures:no-common-ligatures">"DataMode"</span><span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures">,</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>StringValue(</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"OfdmRate24Mbps"</span><span class="" style="font-variant-ligatures:no-common-ligatures">));</span></div>
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<span class="" style="color:rgb(241,241,240); font-variant-ligatures:no-common-ligatures"> WifiMacHelper mac; </span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>Ssid ssid = Ssid (</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"ns-3-ssid"</span><span class="" style="font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>mac.SetType (</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"ns3::StaWifiMac"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"Ssid"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,
SsidValue (ssid),<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"ActiveProbing"</span><span class="" style="font-variant-ligatures:no-common-ligatures">, BooleanValue
(</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">false</span><span class="" style="font-variant-ligatures:no-common-ligatures">));</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"> NetDeviceContainer staDevices = wifi.Install (phy, mac, wifiStaNodes);</span><span class="" style="font-variant-ligatures:no-common-ligatures"></span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> </span></span></p>
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<span class="" style="font-variant-ligatures:no-common-ligatures"> mac.SetType (</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"ns3::ApWifiMac"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"Ssid"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,
SsidValue (ssid));</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>NetDeviceContainer apDevices = wifi.Install (phy, mac, wifiApNode);</span></div>
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<span class="" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">Node 0 (Consumer) , Node 2 (Access Point), and Node 1 (Producer).</span><br class="">
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All the nodes' strategy is set to best-route for the used prefix. I am manually setting up the routes between stations and ap.</div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>Ptr<Node> conNode = wifiStaNodes.Get(</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">0</span><span class="" style="font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>Ptr<Node> prodNode = wifiStaNodes.Get(</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">1</span><span class="" style="font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>Ptr<Node> apNode = wifiApNode.Get(</span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">0</span><span class="" style="font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> </span></span><br class="x_webkit-block-placeholder">
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>ndn::FibHelper::AddRoute(conNode,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"/test/prefix"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,
apNode,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">1</span><span class="" style="font-variant-ligatures:no-common-ligatures">);</span></div>
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<span class="" style="font-variant-ligatures:no-common-ligatures"><span class=""> <span class="x_Apple-converted-space"> </span></span>ndn::FibHelper::AddRoute(prodNode,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">"/test/prefix"</span><span class="" style="font-variant-ligatures:no-common-ligatures">,
apNode,<span class="x_Apple-converted-space"> </span></span><span class="" style="color:rgb(230,104,79); font-variant-ligatures:no-common-ligatures">1</span><span class="" style="font-variant-ligatures:no-common-ligatures">);<span class=""> </span></span></div>
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I am getting the following error in the FibHelper::AddRoute():</div>
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<span class="" style="font-variant-ligatures:no-common-ligatures">msg="Cannot add route: Node# 0 and Node# 2 are not connected", file=../src/ndnSIM/helper/ndn-fib-helper.cpp, line=156</span></div>
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This is because the NetDevice for Node# 0 is not found, which is checked in this line:</div>
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<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_named-2Ddata_ndnSIM_blob_master_helper_ndn-2Dfib-2Dhelper.cpp-23L134&d=DwMFAw&c=Cu5g146wZdoqVuKpTNsYHeFX_rg6kWhlkLF8Eft-wwo&r=eI5Bh74ovG-uIXQ5ksQETSPgRFzmJXjIZXneCqw580E&m=4ek9j7voginvALvFbSSEsRmAeHe0PDY5s1hVmetBOMc&s=5KAEFzGX_Ql4n4dSwaRUeGpRAAeIZmhrxNKbZ7cF1XE&e=" id="LPlnk613248" class="" style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt">https://github.com/named-data/ndnSIM/blob/master/helper/ndn-fib-helper.cpp#L134</a><br class="">
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>From the log I can see that NetDeviceTransport is created for all the nodes. Can you any one please tell what I am missing here?</div>
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-Muktadir</div>
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mailing list</span><br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<a href="mailto:ndnSIM@lists.cs.ucla.edu" class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px">ndnSIM@lists.cs.ucla.edu</a><br class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none">
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.lists.cs.ucla.edu_mailman_listinfo_ndnsim&d=DwICAg&c=Cu5g146wZdoqVuKpTNsYHeFX_rg6kWhlkLF8Eft-wwo&r=eI5Bh74ovG-uIXQ5ksQETSPgRFzmJXjIZXneCqw580E&m=4ek9j7voginvALvFbSSEsRmAeHe0PDY5s1hVmetBOMc&s=Gztm-ZX6vbVzVMQ0DirMqzRLRfGChvMT-NOaqWQB3O4&e=" class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; orphans:auto; text-align:start; text-indent:0px; text-transform:none; white-space:normal; widows:auto; word-spacing:0px">https://urldefense.proofpoint.com/v2/url?u=http-3A__www.lists.cs.ucla.edu_mailman_listinfo_ndnsim&d=DwICAg&c=Cu5g146wZdoqVuKpTNsYHeFX_rg6kWhlkLF8Eft-wwo&r=eI5Bh74ovG-uIXQ5ksQETSPgRFzmJXjIZXneCqw580E&m=4ek9j7voginvALvFbSSEsRmAeHe0PDY5s1hVmetBOMc&s=Gztm-ZX6vbVzVMQ0DirMqzRLRfGChvMT-NOaqWQB3O4&e=</a><span class="" style="font-family:Helvetica; font-size:12px; font-style:normal; font-variant-caps:normal; font-weight:normal; letter-spacing:normal; text-align:start; text-indent:0px; text-transform:none; white-space:normal; word-spacing:0px; text-decoration:none; float:none; display:inline!important"></span></div>
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