@misc{rfc9406, series = {Request for Comments}, number = 9406, howpublished = {RFC 9406}, publisher = {RFC Editor}, doi = {10.17487/RFC9406}, url = {https://www.rfc-editor.org/info/rfc9406}, author = {Praveen Balasubramanian and Yi Huang and Matt Olson}, title = {{HyStart++: Modified Slow Start for TCP}}, pagetotal = 9, year = 2023, month = may, abstract = {This document describes HyStart++, a simple modification to the slow start phase of congestion control algorithms. Slow start can overshoot the ideal send rate in many cases, causing high packet loss and poor performance. HyStart++ uses increase in round-trip delay as a heuristic to find an exit point before possible overshoot. It also adds a mitigation to prevent jitter from causing premature slow start exit.}, }