TY - GEN
T1 - To switch or not to switch to TCP Prague? Incentives for adoption in a partial L4S deployment
AU - Sarpkaya, Fatih Berkay
AU - Srivastava, Ashutosh
AU - Fund, Fraida
AU - Panwar, Shivendra
N1 - Publisher Copyright:
© 2024 Copyright held by the owner/author(s).
PY - 2024/7/23
Y1 - 2024/7/23
N2 - The Low Latency, Low Loss, Scalable Throughput (L4S) architecture has the potential to reduce queuing delay when it is deployed at endpoints and routers throughout the Internet. However, it is not clear how TCP Prague, a prototype scalable congestion control for L4S, behaves when L4S is not yet universally deployed. Specifically, we consider the question: in a partial L4S deployment, will a user benefit by unilaterally switching from the status quo TCP to TCP Prague? To address this question, we evaluate the performance of a TCP Prague flow when sharing an L4S or non-L4S bottleneck queue with a non-L4S flow. Our findings suggest that the L4S congestion control, TCP Prague, has less favorable throughput or fairness properties than TCP Cubic or BBR in some coexistence scenarios, which may hinder adoption.
AB - The Low Latency, Low Loss, Scalable Throughput (L4S) architecture has the potential to reduce queuing delay when it is deployed at endpoints and routers throughout the Internet. However, it is not clear how TCP Prague, a prototype scalable congestion control for L4S, behaves when L4S is not yet universally deployed. Specifically, we consider the question: in a partial L4S deployment, will a user benefit by unilaterally switching from the status quo TCP to TCP Prague? To address this question, we evaluate the performance of a TCP Prague flow when sharing an L4S or non-L4S bottleneck queue with a non-L4S flow. Our findings suggest that the L4S congestion control, TCP Prague, has less favorable throughput or fairness properties than TCP Cubic or BBR in some coexistence scenarios, which may hinder adoption.
KW - AQM
KW - Congestion Control
KW - L4S
KW - Low Latency
KW - TCP
UR - http://www.scopus.com/inward/record.url?scp=85200828910&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85200828910&partnerID=8YFLogxK
U2 - 10.1145/3673422.3674896
DO - 10.1145/3673422.3674896
M3 - Conference contribution
AN - SCOPUS:85200828910
T3 - ANRW 2024 - Proceedings of the 2024 Applied Networking Research Workshop
SP - 45
EP - 52
BT - ANRW 2024 - Proceedings of the 2024 Applied Networking Research Workshop
PB - Association for Computing Machinery, Inc
T2 - 2024 Applied Networking Research Workshop, ANRW 2024
Y2 - 20 July 2024 through 26 July 2024
ER -