We quantify, over inter-continental paths, the ageing of TCP packets, throughput and delay for different TCP congestion control algorithms containing a mix of loss-based, delay-based and hybrid congestion control algorithms. In comparing these TCP variants to ACP+, an improvement over ACP, we shed better light on the ability of ACP+ to deliver timely updates over fat pipes and long paths. ACP+ estimates the network conditions on the end-to-end path and adapts the rate of status updates to minimize age. It achieves similar average age as the best (age wise) performing TCP algorithm but at end-to-end throughputs that are two orders of magnitude smaller. We also quantify the significant improvements that ACP+ brings to age control over a shared multiaccess channel.
翻译:通过洲际路径,我们量化了TCP包的老化、吞吐量和各种TCP拥堵控制算法的延迟,这些算法包含基于损失的、基于延迟的和混合的阻塞控制算法的组合。在将这些TCP变式与非加太国家相比,比非加太国家有所改进,我们更清楚地揭示了非加太国家及时更新脂肪管道和长路的能力。非加太国家估计了端至端路径上的网络条件,并调整了状态更新速度,以尽量减少年龄。它达到与进行TCP算法的最好(年龄)相似的平均年龄,但在端至端的算法中,其数量小于两个数量级。我们还量化了非加太国家为控制共享的多接入通道的年龄而带来的重大改进。