[NNagain] [EXTERNAL] Re: Flash priority

[Livingood, Jason]

On 3/9/24, 10:04, "Sebastian Moeller" <moeller0 at gmx.de <mailto:moeller0 at gmx.de>> wrote:
> [SM] ...a big (probably the biggest) DOCSIS ISP in the USA had been remarking a noticeable fraction of packets to CS1 for years (which at a time was defined to mean background or lower priority and is treated as such by default WiFi APs) causing issues at end users' home networks. (Said ISP, to its credit, did fix the issue recently, but it tool a few years...).

[JL] Once the issue was escalated to me (thank you), it was fixed very quickly. ;-) 

> [SM] Since I have your attention, if I try comcast's bespoke networkQuality server (from your L4S tests)...I saw ECT(1) marking on my egressing packets, but none on the ingressing packets... that does not seem to be in line with the L4S RFCs (giving another example why RFC text alone is not sufficient for much). 

[JL] That is far from a production server and we've been making config changes to that box all last week as we prepare for more testing - I would not trust any recent results. But in any case, if you are not seeing ECN marks on packets coming back to you, and you are off-net, then something on the path back to you is bleaching. Feel free to send me a traceroute privately and we can continue to discuss it. 

Jason