QOS capabilities and assistance

[Wise Shtashi]

Hi All,

I've followed this thread http://www.gargoyle-router.com/phpbb/vi ... 4&start=30 as a guide for setting up QoS and I am not sure if either I have high expectations of QoS/Steam uses different ports now/I haven't set it up properly.

Basically ping will spike (to appx 1300ms) for a minute when someone streams YouTube.

Before I go playing with settings etc. I want to know if this is this what we should expect? What can QoS achieve if set up properly?

Thanks in advance.
Wise Shtashi

[pbix]

When properly configured gargoyle will keep you ping times under control. The ping times you can expect depend on your line speeds. In my case I have a 1Mbps line speed and my ping times are never more than 200ms and usually under 100ms. Faster lines will go faster.

This is what you should expect from Gargoyle. If you are not getting that then something is wrong.

You can observe the operation of the ACC on the QoS download screen. If ACC is not controlling your ping times then either the ping target is wrong or the target ping time threshold is wrong. This is the most common problem I see.

[Wise Shtashi]

Hi pbix,

Thanks for responding.

So normally we will get 67ms ping when playing a game (DOTA 2, Sydney servers) but when the other PC in our house is streaming YouTube the ping will go to 1500-3000ms. I assume this is HD youtube and perhaps some general web browsing as well.

Our bandwidth isn't fantastic, but when we are both playing games the ping is fine. The problem only occurs when one of us is streaming or doing something else with the bandwidth.

I don't know how to tell if ACC is doing it's job properly. It is on, and just set to auto.

Here are screen shots of QoS Down & Up, including ACC. in case it helps diagnose what is wrong.

[pbix]

The screen shot you posted shows a ping time of 35ms.

If you want help with a problem you have to demonstrate the problem by posting screen shots of the problem.

[Wise Shtashi]

OK, thanks pbix.

I will replicate the issue tonight and post a screen shot.

What are we looking for exactly?

[pbix]

Under the congestion control status is listed the measured ping time.

According to your report this time will get over 500ms consistently. So that is what we are looking for.

BTW, are your computer connected with Wifi or with wires to your router?

Also the download speed listed is the default. What is the speed of your WAN connection? You should enter it and not use the default.

[Wise Shtashi]

Hi pbix,

My PC is connected via RJ45.

I didn't know that was the default. I actually do get around 3200 kilobits down. However, the line does vary a bit. The fastest I have seen it go is 3760 kilobits, but it I'd say 3200 is more common.

(I am just using speedtest.net to gauge connection speed.)

[Wise Shtashi]

I tested it underload and have taken some screen shots. (Twitch.tv and YouTube 720p)

The ping seems to spike fairly high in then settle down for 30 seconds, rinse repeat.

I turned off ACC after testing this and ran a speedtest again - my line seems like it is between 3700-2400 kbits. How should I deal with this?

[pbix]

If your WAN speed is as high as 3700kbps then you should use 3700kbps as your download speed. This is not related to your ping time issue however.

Your screen shots show a ping limit of 93ms in MINRTT mode and a measured ping north of 500ms. In this condition the ACC will lower your link limit until the ping returns to under 93ms. The speed at which the ACC acts is not instantaneous. I suppose it will take up to 15 seconds for the ping times to recover. How long are your pings remaining above 93ms?

The ACC is built to track your changing link speed as this is a common problem for home users. You seem to have a wider range of link speed change than most. The more and faster your link speed changes the harder ACC will have to work. While it is searching for the correct speed your pings will be out of tolerance and your gaming experience will suffer. This period should be under 15 seconds but will depend on how wildly conditions on your WAN link are changing.

From your previous comments I presumed you suffered high pings for long periods of time. In your latest post you don't say how long they are staying high exactly. Has something changed?

Tell us something about your ISP. What technology of WAN link do you have? Where are you located? Do you know other people using the same ISP?

[Wise Shtashi]

If your WAN speed is as high as 3700kbps then you should use 3700kbps as your download speed

Our line is not actually capped to a speed. They just give us the fastest that ADSL can offer. Which when I have measured, comes to about that.

From your previous comments I presumed you suffered high pings for long periods of time. In your latest post you don't say how long they are staying high exactly. Has something changed?

They can - but I couldn't replicate that. The ping sitting over 3k only happens when my housemate is doing something (he says just streaming YouTube). To test last night, I tried to replicate the issue as best I can. My housemate is away until later this week so I couldn't get him to try anything on his PC

Tell us something about your ISP. What technology of WAN link do you have? Where are you located? Do you know other people using the same ISP?

We are on a sub exchange and I think a shared copper line, so we can only get ADSL1 (speed not capped) because of this. I live in Adelaide, South Australia. A lot of people use our ISP (http://www.internode.on.net/) and they are generally considered good. I think it is just the line to my house which dooms us to a poor internet connection.