This draft was presented to the IRTF Internet Congestion Control Research Group (ICCRG) at the 83rd IETF meeting, and was not intended to be published as an RFC. The slides from the presentation are available.

This document describes Content- and Cache-Aware TCP (CATCP) that allows caching of TCP segments to be re-used between different connections transmitting same data. When there is redundant data to multiple receivers, this can lead to significant load reductions and performance improvements.