イベント名
Distinguished Lecturer Program Series
発表年月日
2022/12/23
タイトル
Past, present, and future of Internet congestion control
講演者
Go Hasegawa(Tohoku University), 
抄録
Internet Congestion control is essential not only from the performance perspective but also for its stability and robustness. Congestion control has been the subject of continuous research and development since the birth of the Internet.
In this lecture, we review the Internet congestion control mechanisms that have been proposed, studied, and implemented so far. First, we summarize the existing congestion control mechanisms from the viewpoint of metrics for the degree of network congestion, that is, loss-based, delay-based, bandwidth-based mechanisms, and their hybrid mechanisms.

Next, we introduce the history of the congestion control deployed for specialized network environments such as wireless networks, high-speed and long-delay networks, and datacenter networks.

We further introduce the congestion control mechanisms which utilize some information obtained from the network, such as Explicit Congestion Notification (NCP) and eXplicit Control Protocol (XCP). Some existing mechanisms which introduce in-network control, such as Performance Enhancing Proxy (PEP), are also explained.

We then explain recent research trends in congestion control mechanisms, including the congestion control plane that implements congestion control mechanisms in user space, SDN-based congestion control, and machine learning-based congestion control.

Finally, the lecturer introduces his recent research on in-Network Congestion Control architecture (NCC), which breaks away from the end-to-end principle on which the existing Internet congestion control relies, and divides the network between the transmitting and receiving terminals into multiple sub-networks, and applies congestion control algorithms algorithm for each sub-network separately.

Webinar視聴