On the implementation of TCP urgent data
Andrew Yourtchenko, Fernando Gont · 2009
This document analyzes the current practices for handling TCP urgent data in the current Internet. It describes how popular TCP implementations process urgent data, and also describes how a number of middle-boxes affect how urgent data is processed by end systems. Additionally, it includes a survey of the processing of urgent data by popular TCP implementations. This document updates the relevant specifications such that they accommodate current practice in processing TCP urgent data.