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• copy pcc.cc, pcc.h, pcc-sink.cc, and pcc-sink.h to the main ns directory

• add the default values to tcl/lib/ns-default.tcl
  

  Agent/PCC set AppRate_ 60000 ;    # Constant Bitrate Application
  Agent/PCC set overhead_ 0.5 ;	  # If > 0, dither outgoing packets
  Agent/PCC set packetSize_ 1000
  Agent/PCC set ndatapack_ 0 ;	  # Number of packets sent
  Agent/PCC set printStatus_ 0 
  
  Agent/PCCSink set packetSize_ 40
  Agent/PCCSink set InitHistorySize_ 100000
  Agent/PCCSink set NumFeedback_ 1
  Agent/PCCSink set printLoss_ 0
  Agent/PCCSink set df_ 0.8 ;	# decay factor for accurate RTT estimate
  Agent/PCCSink set bval_ 1 ;	# Value of B for TCP formula
  Agent/PCCSink set NumSamples_ -1
  Agent/PCCSink set discount_ 1; # History Discounting
  Agent/PCCSink set smooth_ 1 ;	# smoother Average Loss Interval
  Agent/PCCSink set totalReceived_ 0
  Agent/PCCSink set protLossEvents_ 3
  Agent/PCCSink set protRTTs_ 5
  Agent/PCCSink set protMaxTime_ 30
  Agent/PCCSink set Toff_ 60
  Agent/PCCSink set Texp_ 2 
  #Agent/PCCSink set rateDiscount_ 0.8
  Agent/PCCSink set adjustRate_ 0
  Agent/PCCSink set runtime_ 600
  Agent/PCCSink set pcc_recv_nr_ 0
  Agent/PCCSink set always_on_ 0
        

• add the object files to Makefile.in
  

        pcc.o pcc-sink.o \
        

• include the packet types in packet_t in packet.h
  

        PT_PCC,
        PT_PCC_ACK,
        

  and add the packet names to p_info
  

        name_[PT_PCC]= "probabCC";
        name_[PT_PCC_ACK]= "probabCCCtl";
        

• add the PCC packet types to prot in tcl/lib/ns-packet.tcl
  

        PCC
        PCC_ACK
        

  For older versions of ns (before Aug. 2000) it may be necessary to add the PCC packet types to pair in tcl/lib/ns-packet.tcl instead
  

        { PCC off_pcc_}
        { PCC_ACK off_pcc_ack_}
        

• recompile ns (make clean; ./configure; make)