NeTS: Small: Internet Congestion Control Census

最近，互联网正从同构拥塞控制向异构拥塞控制发展。五年前，互联网流量主要由标准的TCP AIMD算法控制，而现在互联网流量由许多不同的拥塞控制算法控制。然而，对异构拥塞控制下Internet的性能和稳定性的研究却很少。一个根本原因是缺乏不同拥塞控制算法的部署信息。由于越来越多的公共、私有和专有拥塞控制算法部署在互联网上，以及缺乏关于异构互联网的信息，本项目的目标是：1)设计用于识别拥塞控制算法和互联网节点和流的相关参数的方法和工具；2)进行大规模的综合测量，以识别和评估异构互联网中的拥塞控制算法。打个比方，如果我们把互联网看成一个国家，一个互联网节点看成一个房子，一个运行在节点上的拥塞控制算法看成一个住在房子里的人，这个项目就是在互联网所在的国家进行一次人口普查。就像人口普查对社会的研究和规划至关重要一样，提出的拥塞控制普查对互联网的研究和规划至关重要。该项目的预期结果包括用于识别拥塞控制算法的方法和工具，以及包含测量结果的拥塞控制普查数据库。

The Internet has recently been evolving from homogeneous congestion control to heterogeneous congestion control. Five years ago, Internet traffic was mainly controlled by the standard TCP AIMD algorithm, whereas Internet traffic is now controlled by many different congestion control algorithms. However, there is very little work on the performance and stability study of the Internet with heterogeneous congestion control. One fundamental reason is the lack of the deployment information of different congestion control algorithms. Motivated by the increasing number of public, private, and proprietary congestion control algorithms deployed in the Internet and the lack of the information about the heterogeneous Internet, the goals of this project are to 1) design methodologies and tools for identifying the congestion control algorithms and related parameters of Internet nodes and flows, and 2) conduct large scale comprehensive measurements for identifying and evaluating the congestion control algorithms in the heterogeneous Internet. As an analogy, if we consider the Internet as a country, an Internet node as a house and a congestion control algorithm running at a node as a person living at a house, this project is to conduct a population census in the country of the Internet. Just like the population census is vital for the study and planning of the society, the proposed congestion control census is vital for the study and planning of the Internet. The expected results of this project include methodologies and tools for identifying congestion control algorithms, and a congestion control census database containing measurement results.