TCP Hybla (developed by Rosario Firrincieli: rfirrincieli@arces.unibo.it)

13 January 2006


a) Installation Instructions

   1. Get NS-2 version 2.27

   2. Add the modules "tcp-hyblaS.cc" and "tcp-hyblaS.h" to the main NS-2 directory (e.g. ns-allinone-2.26/ns-2.26/tcp)

   3. Modify the Makefile so that it compiles and links the new module (i.e. add "tcp-hyblaS.o" anywhere in the OBJ_CC  variable, for example near
      the other TCP related modules like "tcp-newreno.o" or "tcp-vegas.o"). You can find the Makefile under the main NS-2 directory

   4. Add the following lines to "ns-default.tcl" (it can be found in the tcl/lib directory of the main NS-2 directory):
	
	Agent/TCP/HyblaS set newreno_changes_ 1
	# setting this to 1 allows the retransmit timer to expire for
	# a window with many packet drops
	Agent/TCP/HyblaS set newreno_changes1_ 0
	Agent/TCP/HyblaS set partial_window_deflation_ 0
	Agent/TCP/HyblaS set exit_recovery_fix_ 1
	Agent/TCP/HyblaS set PKT_SPREADING_ 2
	Agent/TCP/HyblaS set bdp_fix_ 1
      
   5. Recompile NS-2

b) Validation instructions (validation it is recommended, even if not mandatory) 
  
   1. Copy the modules "test-all-hybla",  "test-suite-hybla.tcl" and "test-output-hybla" in the directory tcl/test directory of the main NS-2 directory.
  
   2. Run "test-all-hybla"
  
   3. Say yes to all tests