ADSL ping/latency

[LethalChicken]

Hi All,

I know that if you are sitting on an idle ADSL line your pings are the best. If you start downloading your pings get progressively worse. However if you do the same on a cable/lease line/IDSN, unless you use your whole BW your ping does not get affected ...

Is there a way to shape the bandwith in a way that d/l do not affect the ping adversly ?



We are Telkom - Resistance is Futile - You will be Assimilated

 

[Deckert]

Hi, BlobNow

So, what you are saying:

If you download on your ADSL line (using all available BW) your ping times will go higher. Which is logical.

You also say that if you don't use all your bandwidth on you cable/ISDN/leased line, your ping times will not be affected. Also logical. (Note that this holds true for ADSL as well).

If you do use all available bandwidth on your cable/leased/ISDN line, your ping time will also be affected. No matter what technology you use (yes, even ethernet) your ping times will rise in proportion to the percentage of available bandwidth you use.

To answer your question: yes, you can shape your traffic so that ping times are not (adversely) affected, but what would that accomplish? Now you'll be downloading/surfing at slower speeds, but your ping time will be excellent. So what?

What you *can* do, is to prioritise some traffic, but that will only hold true for outbound traffic. You'll have to get the other end to do the same if you want a symmetric effect.

--deckert

 

[LethalChicken]

No, what I was saying is that on ADSL even if you do NOT use all your BW.. you ping will go south ...

We are Telkom - Resistance is Futile - You will be Assimilated

 

[Deckert]

<i>Originally posted by BlobNow:
No, what I was saying is that on ADSL even if you do NOT use all your BW.. you ping will go south ...
</i>
Which is exactly what will happen on any other line.

--deckert