Cannot make QOS work on 7800NXL with 2.32e fw, PPOA ADSL

[mouse1]

On an 7800NXL with 2.32e firmware, ADSL connection (ppoa, G.dmt, VCMUX), circa 3MBs-1, SNR circa 6, interleave=1

I did the following and got the following results

1. Set up a QOS rule to give high priority to outbound traffic from my specific PC internal IP (192.168 etc), to a specific WAN IP (my site which has zero traffic). Set the rule to disabled
2. Pinged that IP, and got an average ping of 19 ms
3. Started an Https upload of a 6Mb file to a forum web site
4. While that was running, pinged my site again and I got and average of 562ms
5. Enabled the QOS rule, pinged my site again and got very variable averages between 184 and 300ms (but 476ms if I added a DSCP EF category to the rule).

QOS had some effect, but it was not as big as I expected or hoped. I hoped Qos would take the ping down to maybe 40ms after accounting for QoS processing overhead.

I am not sure if this is a reasonable experiment but it would seem to be. (There were not other active QOS rules)

Am I doing anything wrong, or is QOS on PPOA still not working properly?

Kind regards

Mike

[mouse1]

If possible I would be very grateful for an answer soon as I need to decide whether to return this modem soon.

I have continued to experiment, and I now think that even the small improvement noted was random.

On average QoS, appears to have no effect on pings when the experiment is conducted as described above.

Kind regards

Mike

[billion_fan]

If possible I would be very grateful for an answer soon as I need to decide whether to return this modem soon.

I have continued to experiment, and I now think that even the small improvement noted was random.

On average QoS, appears to have no effect on pings when the experiment is conducted as described above.

Kind regards

Mike

Try following the attached screen shot, its the only solution I can think of

[mouse1]

Bingo - thanks very much indeed

Now 40ms ping average instead of 400!

So no upload: 20m ping
Upload plus no priority rules 400ms ping
Upload plus one priority rule about the same
Upload plus one maximum and one priority rule 40ms ping, which is good enough

Thanks very much