Record the design idea & simulation skill

Testing: merge Testing: check in from Debian Testing: check in from windows

2009, Jul. 3, Friday, Qiu Qinlong: 1) debug segmentation fault

• with the simplest code compare the original working SW
• e.g. LTEQueue --> DropTail 2) be carful with point, especially with point=NULL 3) testing script is very helpful

2009, May 10, Sunday, Qiu Qinlong: backup location: qiuqinlong@163.com/neteasynetdisk/mydocument/project/2009_5_10_ver_1_0

simulation:

• 60 seconds
• 10 subscribers
• 5 classes' traffic
• classification and scheduling

working SW:

• project/lte.tcl
• project/ltequeue.cc
• project/ltequeue.h
• queue/drop-tail.h
• queue/red.h
• tcl/webcache/http-agent.tcl
• tcl/webcache/http-cache.tcl
• tcl/webcache/http-server.tcl
• tcl/rtp/session-rtp.tcl

next step:

• configure 5 classes' Queue parameters, such as limit_
• cofigure application parameters
• do the statistics
• comparing test
• write paper

other useful files:

• tcl/lib/ns-default.tcl
• project/.cc, .h, test

2009 May 11, Qiu Qinlong

The following comand sometimes can solve very difficult problem, such as memory corrupted!

• make clean;
• make;

Class A { public: virtual void print(){}; friend class B; protected: int a; };// The ";" is a must, otherwise, there will be very strange compile error.

Class B { A *a=new A; a->a; //class B can use class A's protected member due to B is A's friend class. };

Class C: public A { public : virtual void print(){}; };

A p, q; p = new A; q = new C; p->print();//class A's print q->print();//class B's print //if without virtual, q->print will be A's print.

When using REDQueue, Queue/RED set qweight 0.002 to avoid floating error!