Lecture 12: Congestion Control at the Host

AIMD: Probing for additional bandwidth

The algorithm behind TCP must deal with more than merely moving lots of bytes from application to application. It must also ensure that it acts in a manner that will not overwhelm the routers in between. This lecture will discuss those aspects of TCP where it tries to be a good neighbor. We will discuss the basic congestion control schemes, including slow-start, additive-increase multiplicative-decrease and fast-retransmission.

Lesson Objectives

By the end of this lesson, the student will be able to: