adding QOS-Tag to packets

[solmaz soltani]

./libns3.16-evalvid-debug.so: undefined reference to `ns3::QosTag::QosTag(unsigned char)'
./libns3.16-evalvid-debug.so: undefined reference to `vtable for ns3::QosTag'
collect2: ld returned 1 exit status


hello
is there any one who can solve my problem
how do i add  qos in sending packet?

[gigoudt]

Hi,

Im having also the same problem, read a lot and cant find any clue

Im using the udptraceclienthelper to send video stream. Everything is working fine but when I want to mark it to use it in a 802.11e simulation I have the same error. 

I add in udp-trace-client.cc this lines :

 Ptr<Packet> p;

   QosTag tag ;

 tag.SetTid(4) ; // AC_VI

 p -> AddPacketTag ( tag );

could someone give a clue in this or how to use tagging in main script.

IN main script I use :

 uint16_t port = i+4000;

  UdpServerHelper server (port);

  ApplicationContainer apps = server.Install (wifiStaNodes.Get (i+6));

  apps.Start (Seconds (2.0));

  apps.Stop (Seconds (10.0));

//

// Create one UdpTraceClient application to send UDP datagrams from node zero to

// node one.

//

  uint32_t MaxPacketSize = 1472;  // Back off 20 (IP) + 8 (UDP) bytes from MTU

  UdpTraceClientHelper client (IPSTA.GetAddress (i+6), port,"trace.txt");

  client.SetAttribute ("MaxPacketSize", UintegerValue (MaxPacketSize));

  apps = client.Install (wifiApNode.Get (0));

  apps.Start (Seconds (2.0));

  apps.Stop (Seconds (10.0));

without tagging everything works fine.

thanks a lot for any help !!!!

[gigoudt]

this is my error output 

./libns3-dev-applications-debug.so: referencia a `vtable for ns3::QosTag' sin definir

./libns3-dev-applications-debug.so: referencia a `ns3::QosTag::SetTid(unsigned char)' sin definir

./libns3-dev-applications-debug.so: referencia a `ns3::QosTag::QosTag()' sin definir

collect2: error: ld returned 1 exit status

[Konstantinos]

Hi, 

It is a linking error.

Application module has no reference to QosTag. You should add the 'wifi' module as a dependency to the application module.

This is done by changing the wscript file

e.g.

    module = bld.create_ns3_module('applications', ['internet', 'config-store','stats', 'wifi'])

Regards,

K.

[sai kishore]

Hi,

You can add QOS tag by changing code in udp-echo-server.cc and udp-echo-client.cc by adding attributes 

e.g. 

AddAttribute ("AccessClass", "The access class: AC_BE, AC_VO, AC_VI, AC_BK",

                   UintegerValue (0),

                   MakeUintegerAccessor (&UdpEchoClient::m_ac),

                   MakeUintegerChecker<uint8_t> ())

After changing the source code, you can add tag directly in your code like

echoClient.SetAttribute("AccessClass",UintegerValue(UP_VO));

[Diego Romero]

Hi, I've added that dependendy on wifi module, as you said, but this is what I get:

../src/applications/model/udp-trace-client.cc: In member function ‘void ns3::UdpTraceClient::SendPacket(uint32_t)’:

../src/applications/model/udp-trace-client.cc:288:1: error: ‘QosTag’ was not declared in this scope

../src/applications/model/udp-trace-client.cc:288:8: error: expected ‘;’ before ‘tag’

../src/applications/model/udp-trace-client.cc:289:1: error: ‘tag’ was not declared in this scope

What could it be wrong?

Thanks!

[Konstantinos]

Have you added the qos-tag.h header file in either the udp-trace-client.cc or .h file?

[Konstantinos]

Hi,

Adding this attribute in the udp-echo-client/server classes does not solve the problem. 

This solution is a smart way to dynamically adjust them, but it is not what was asked.

Regards,

K.

[Diego Romero]

If I add qos-tag.h in udp-trace-client.cc I get the following:

../src/applications/model/udp-trace-client.cc:37:21: fatal error: qos-tag.h: No such file or directory

compilation terminated

[Konstantinos]

How did you add the qos-tag.h? 

Was it like this? #include <ns3/qos-tag.h> 

[Diego Romero]

I made a mistake in the include.... Now it works!!!!

Konstantinos, you're great! Thanks for your time!!!!

Regards,

Diego

[gigoudt]

Kontastinos ,

thanks a lot its working !!!!! I could never find the way I guess ...

kind regards !

Andres

[Zahra Nasr]

HI Konstantinos

when i searched for solve my problem i sow your comments 

plz help me 

in my post link :

https://groups.google.com/forum/?fromgroups=#!searchin/ns-3-users/qos$20/ns-3-users/dsW5cK8foLE/9Xz-luDjuNMJ

[sean hughes]

Hi Konstantinos,

I know this is an old thread but I've been searching everywhere for a solution to this problem and by adding in 'wifi' I just get the cycle error.
Is there any solution for this?

Kind regards,
Sean

[Sardar Sadaqat]

sir i want to work in qos can i get the code for understanding through this code m able to develop intserv model.

thanks in advance