Simple TCP BulkSend Application Not Working

[Vikas Raunak]

HI

Please find attached a simple tcp bulk send application based program.

No data is transmitted at all .I get zero total bytes received.

The topology is correct, I have verified it.

I am stuck on this issue for a long time now. The code is only uses TCP (not MPTCP as in my previous thread).

Thanking you

Regards

Vikas

[Konstantinos]

Hi Vikas,

Take a short break and relax. Then go back to your code and you can see that there is nothing wrong with NS-3 but with your hastiness.

First problem: you try to get the results AFTER Simulator::Destroy(). All classes generated from NS-3 (ie. your PacketSink) will be destroyed, so you can not get statistics.

Second problem: you send on one socket and received on another. 

  uint16_t tport = 88;
  PacketSinkHelper tsink("ns3::TcpSocketFactory", InetSocketAddress(Ipv4Address::GetAny(), tport));
  BulkSendHelper tsource ("ns3::TcpSocketFactory", InetSocketAddress ("10.1.7.2", 381));

Regards, 

K.

[Vikas Raunak]

Thanks a lot for the reply sir,

Regarding the second problem, I fixed it and still I don't get any transmissions (I put console outputs in ns-3 core..). 

Also for the first problem, the attached code in which I get the results after Simulator::Destroy() works fine (?). 

I don't know, I am stuck in making it work.

Thanks again,

Regards

Vikas

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[Konstantinos]

Hi Vikas,

I just run your scenario, and I got the "expected" output

Total Bytes Received: 1000000

I do not know what is the problem you are reporting.

K.

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