CUBIC Local Loss Recovery vs. BBR on (Satellite) Internet Paths

Deutschmann J, Hielscher KS, German R (2023)

Publication Type: Conference contribution

Publication year: 2023

Publisher: IEEE Computer Society

Book Volume: 2023-July

Conference Proceedings Title: IEEE Workshop on Local and Metropolitan Area Networks

Event location: London GB

ISBN: 9798350346930

DOI: 10.1109/LANMAN58293.2023.10189417


Paths with high delay and packet loss are problematic for transport protocols, especially when loss-based congestion control algorithms are used. Our topology of interest is a geostationary satellite path (round trip time approx. 600 ms) with additional packet loss, which could be caused by a lossy wireless local area network. In geostationary satellite networks, Performance Enhancing Proxies split TCP connections to improve performance, but this is not possible in case of encrypted transport protocols (VPNs, QUIC). This motivates the use of local loss recovery, i.e., avoiding packet loss on specific path segments. We briefly discuss related concepts, architectures, and protocols. We then evaluate local loss recovery using a TCP tunnel on the lossy link. By means of a simple emulation setup, we demonstrate that local loss recovery has great performance benefits if CUBIC is used. It is also shown that BBR works well for high-delay and lossy paths even without local loss recovery.

Authors with CRIS profile

Related research project(s)

How to cite


Deutschmann, J., Hielscher, K.-S., & German, R. (2023). CUBIC Local Loss Recovery vs. BBR on (Satellite) Internet Paths. In IEEE Workshop on Local and Metropolitan Area Networks. London, GB: IEEE Computer Society.


Deutschmann, Jörg, Kai-Steffen Hielscher, and Reinhard German. "CUBIC Local Loss Recovery vs. BBR on (Satellite) Internet Paths." Proceedings of the 29th IEEE International Symposium on Local and Metropolitan Area Networks, LANMAN 2023, London IEEE Computer Society, 2023.

BibTeX: Download