Does my modem have Active Queue Management (AQM) for low latency?
According to my account page, I have an ARRIS Group, Inc. TG1682G. Xfinity is testing AQM firmware (supporting DOCSIS-PIE) on more recent modems and found a huge improvement in latency, which is critical for responsive gaming and other interactive apps. Is my modem in this group or do I need an upgrade? I'm told an XB6 or XB7 would work, but I can't figure out how to determine if I have that.
Here's the research paper with the testing: https://arxiv.org/abs/2107.13968
From the paper:
10. Latency Measurement Results
As explained earlier, for two variants of XB6 cable modem gateway, upstream DOCSIS-PIE AQM was enabled on the CGM4140COM (experiment) variant but was not available on the TG3482G (control) variant during the measurement period. The TG3482G variant used a buffer control configuration that predated AQM in DOCSIS.
See also here: https://lists.bufferbloat.net/pipermail/bloat/2021-July/016566.html