[ndnSIM] Packet drops

[Alex Afanasyev]

Hi Mohammad,

If you're talking about normal drops due to queue overflows, then you can use packet drop traces from NetDevice queue (you can check examples in src/visualizer/model/pyviz.cc):

- /NodeList/*/DeviceList/*/TxQueue/Drop   

If you want to factor in cases when ndnSIM stops forwarding packet (which is not exactly a drop), then you may want to also use 

- /NodeList/*/$ns3::ndn::ForwardingStrategy/DropInterests
- /NodeList/*/$ns3::ndn::ForwardingStrategy/DropData

However, I'm not confident 100% that right now ndnSIM tracks all the cases of stopped forwarding of Interst/Data.  

---
Alex

On Feb 27, 2013, at 5:51 AM, Hovaidi Ardestani Mohammad <mohammad.hovaidi.ardestani at aalto.fi> wrote:

> Hello everybody!
> I have several scenarios in which congestion happens. I am wondering how I can trace dropped packets or know when packet dropping has been started?
> Any help is appreciated in advance
> BR
> -Mohammad