[ndnSIM] how to disable a link

[Xiaoke Jiang]

In fact, I watched the simulation from several point:

1. drop packet:
oss << "/NodeList/*/DeviceList/*/$ns3::PointToPointNetDevice/TxQueue/Drop";
    //Config::Connect (oss.str (), MakeBoundCallback (&AsciiTraceHelper::DefaultDequeueSinkWithContext, stream));
    Config::ConnectWithoutContext(oss.str(), MakeCallback(&P2PDropPacket));

2.unsatisfied requests: timeout request entries of end consumers.



thanks

My Regards,
Xiaoke (Shock) Jiang （蒋小可）

Ph.D. Candidate,
Department of Computer Science and Technology,
Tsinghua University, Beijing, P.R.China. 100084




On Thursday, July 11, 2013 at 2:38 PM, Alex Afanasyev wrote:

> If you're trying to see packet drop on link layer (see red line in visualizer), then you would not see anything, since packet be dropped before coming to there (inside ndn::Face).
>  
> ---
> Alex
>  
> On Jul 10, 2013, at 11:36 PM, Xiaoke Jiang <shock.jiang at gmail.com (mailto:shock.jiang at gmail.com)> wrote:
> > Hi Alex,
> > The code can compile without error, but the result may be not right.
> >  
> > I disabled the one link at Seconds(5.0), some packets should be dropped, while I can't find any. I am trying to detect whether SetUp works.  
> >  
> > thanks
> >  
> > My Regards,
> > Xiaoke (Shock) Jiang （蒋小可）
> >  
> > Ph.D. Candidate,
> > Department of Computer Science and Technology,
> > Tsinghua University, Beijing, P.R.China. 100084
> >  
> >  
> >  
> >  
> > On Thursday, July 11, 2013 at 1:22 AM, Alex Afanasyev wrote:
> >  
> > > Hi Xiaoke,
> > >  
> > > The approaches are not wrong, you just need to add a little bit of C++ syntax craziness to it :)
> > >  
> > > Simulator::Schedule(Seconds(hd), &ns3::ndn::Face::SetUp, face1, false);
> > > Simulator::Schedule(Seconds(hd), &ns3::ndn::Face::SetUp, face2, false);
> > >  
> > > Or, if you define the FailLink function (as a global function or static in some class), you can do a little bit simpler things
> > > void FailLinks (Ptr<Node> node1, Ptr<Node> node2)  
> > >  
> > >  
> > > Simulator::Schedule (Seconds (10.0), FailLinks, Names::Find<Node> ("node1"), Names::Find<Node> ("node2"));
> > >  
> > >  
> > > I haven't checked, but I hope this code should compile. Let me know if it doesn't, so I'll double check.
> > >  
> > > ---
> > > Alex
> > >  
> > >  
> > > On Jul 9, 2013, at 11:44 PM, Xiaoke Jiang <shock.jiang at gmail.com (mailto:shock.jiang at gmail.com)> wrote:
> > > > thank you, Alex. But I have to fail the link at a specified time:
> > > >  
> > > >           Simulator::Schedule(Seconds(hd), &&ns3::ndn::Face::SetUp, face1, false);
> > > >           Simulator::Schedule(Seconds(hd), &face2->SetUp, false);
> > > > The above two approaches are wrong. What is your suggestion?
> > > >  
> > > >  
> > > > thanks
> > > >  
> > > > My Regards,
> > > > Xiaoke (Shock) Jiang （蒋小可）
> > > >  
> > > > Ph.D. Candidate,
> > > > Department of Computer Science and Technology,
> > > > Tsinghua University, Beijing, P.R.China. 100084
> > > >  
> > > >  
> > > >  
> > > >  
> > > > On Wednesday, July 10, 2013 at 2:09 PM, Alex Afanasyev wrote:
> > > >  
> > > > > With point to point links you cannot remove any of them, but you can "fail" them.  You can try to make something base on this example: http://ndnsim.net/faq.html#code-questions
> > > > >  
> > > > > To get Ptr<Node> from string (defined in the topology file), just use something like this: Names::Find<Node> ("node1")---
> > > > > Alex
> > > > >  
> > > > > On Jul 9, 2013, at 10:40 PM, Xiaoke Jiang <shock.jiang at gmail.com (mailto:shock.jiang at gmail.com)> wrote:
> > > > >  
> > > > > > Dear all,  
> > > > > > I read a topology with AnnotatedTopologyReader, now I am trying to disable a link, say link between node1 and node2, anyone can give me any hint?
> > > > > >  
> > > > > > thanks
> > > > > >  
> > > > > > My Regards,
> > > > > > Xiaoke (Shock) Jiang （蒋小可）
> > > > > >  
> > > > > > Ph.D. Candidate,
> > > > > > Department of Computer Science and Technology,
> > > > > > Tsinghua University, Beijing, P.R.China. 100084
> > > > > >  
> > > > > >  
> > > > > >  
> > > > > >  
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