Why does Linksys Routers no longer have QoS?

[Nullity]

I just want increaded upload. 12Mbit down is more than enough for me.

My ~650Kbit upload means ~18ms transmission latency for an MTU-sized packet, meaning worst-case jitter is 18ms. Not bad, but not great.

I hope to get 8Mbit soon, lowering worst-case jitter to ~1.5ms.

For many services, jitter is a bigger problem than RTT latency (assuming that RTT is within spec).

 

[Nullity]

At one time I had 75 down and 5 up and still didn't have any issues with all the devices we have at home.

But did you have any services that required low latency? My modem has about a 650ms buffer when uploading, which is quite painful, depending on what type of experience you are accustomed to. With QoS features, I get ~50ms. Some ISPs, or their CPE devices, have very minimal bufferbloat. A fellow over on pfSense forums has a 100Mbit connection with 1ms ping that literally changes less than 1ms when both up/download fully saturated with torrents, with no QoS.


I think my favorite QoS tweak is ACK prioritization. With it, you can fully saturate download while fully saturating upload.

Most devices, especially back in the days of 56K dial-up, could not upload while downloading because of bufferbloat delaying the ACK packets. For years, I assumed that multi-second delays when browsing while uploading was just the nature if the beast.

Here are a couple pics from here showing the improvements that simple ACK prioritization can offer during simultaneous upload & download saturation.

Before:

After:

 

[htismaqe]

I have 35/5 and don't have any issues, even with simultaneous Facebook gaming and multiple HD Amazon/Netflix streams.

 

[htismaqe]

That's the benefit of having ethernet over FTTH. I don't even have a provider modem, the Cat6 drop connects directly to the WAN port on my router. Chicago is probably the closest major hub (at least a 6 hour drive) and my ping is 5ms through my direct provider, their aggregator, and the aggregator's ISP connection to the NAP.

Jitter is usually under 2ms and I use VoIP all day every day without issues.