- Author:
Yiqing Ma(Hongkong University of Science and Technology) Testbed, Network Simulation
专有名词
NS2 is an object oriented simulator ,witten in C++, with an OTCL(Object Tool Command Language) interpreter as a front-end.
the first function: [at]
for creat an eventthe second funtion:[proc p{x}]
to create an function.
传输控制协议part 1:
A typical communication system consists of applications, transport layer
agents, and a low level network. An application models user demand to transmit
data. Taking user demand as an input, a sending transport layer agent
creates packets and forwards them to the associated receiving transport layer
agent through a low-level network. Having discussed the details of low level
networks in Chapters 5–7, the details of transport layer agents are presented
here in Chapters 9–10. Also, the details of applications will be presented in
Chapter 11.
sink : receiver 端的协议
CBR FTP
CBR: Constant Bit Rate (固定传输速率)
用来形容通信服务质量（QoS)(Quality of Service)的术语。该词相对应的事可变码率或者可变比特率（Variable Bit Rate VBR)
在一个带宽收到限制的信道中国进行多媒体通信的时候，CBR可以更好的使用信道。但是CBR不适合存储。因为CBR没有足够的码率对复杂的内容进行编码。同时会浪费一些码率。
FTP:File Transfer Protocol 文件传输协议。也是一个应用程序，可以通过它与世界各地的FTP服务器项链，访问服务器上的大量程序和信息，FTP就是要让用户连接上一个远程计算机，看远程计算机有哪些文件。