Help: ADSL bandwidth overhead

Hi Folks, I didn't know where to post this, but this seems the most
promising.

Basically my router is using approx. 3 times the bandwidth that I am
actually using.

What I mean is this.

Say I am uploading something at 3kBytes/sec. My router is doing (confirmed
by my ISP) about 10kBytes/sec upload.

As you can see I reach max uploads at 20kBytes/sec as I am using close to
600 kbits/sec because of this, I have a 3M/8k adsl line.

at 20kBytes/sec I am doing close to 600kbps to my ISP, thus maxing out my
connection.

Does anyone know how I can improve this (short of shutting down p2p ) or
what might be going on.

Could p2p software be doing this (as I may have 100 sockets open at any
given time) ????

Thanks for any feedback.



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On Tue, 15 Mar 2005 21:29:38 -0500, Haider Kazmi <(E-Mail Removed)> wrote:
> Hi Folks, I didn't know where to post this, but this seems the most
> promising.
>
> Basically my router is using approx. 3 times the bandwidth that I am
> actually using.
>
> What I mean is this.
>
> Say I am uploading something at 3kBytes/sec. My router is doing (confirmed
> by my ISP) about 10kBytes/sec upload.

Confirmed how? Have you run a DSL speed test when no other network apps
are running on your local network?

> As you can see I reach max uploads at 20kBytes/sec as I am using close to
> 600 kbits/sec because of this, I have a 3M/8k adsl line.

I think you mean 800kbps (or 768k) upload, which I would expect that to
pass about 75 kBytes/sec?

> at 20kBytes/sec I am doing close to 600kbps to my ISP, thus maxing out my
> connection.
>
> Does anyone know how I can improve this (short of shutting down p2p ) or
> what might be going on.
>
> Could p2p software be doing this (as I may have 100 sockets open at any
> given time) ????

p2p could be generating all sorts of incoming and outgoing traffic. Or if
it saturates your upload, that can adversely affect downloads. It can
also use up all of your NAT ports (until they time out and are freed up).
To get around that, you may either need to throttle you p2p program, or do
some sort of QoS or ToS (quality or type of service) queuing.

In comp.os.linux.networking David Efflandt <(E-Mail Removed)>:
> On Tue, 15 Mar 2005 21:29:38 -0500, Haider Kazmi <(E-Mail Removed)> wrote:
>> Hi Folks, I didn't know where to post this, but this seems the most
>> promising.
>>
>> Basically my router is using approx. 3 times the bandwidth that I am
>> actually using.
>>
>> What I mean is this.
>>
>> Say I am uploading something at 3kBytes/sec. My router is doing (confirmed
>> by my ISP) about 10kBytes/sec upload.

> Confirmed how? Have you run a DSL speed test when no other network apps
> are running on your local network?

>> As you can see I reach max uploads at 20kBytes/sec as I am using close to
>> 600 kbits/sec because of this, I have a 3M/8k adsl line.

> I think you mean 800kbps (or 768k) upload, which I would expect that to
> pass about 75 kBytes/sec?

Yep, a nice quick test for download speed (speed meter -
http://2wire.com/). Better suited and with down/upload
measurements should be *'iptraf'*.

[..]

>> Could p2p software be doing this (as I may have 100 sockets open at any
>> given time) ????

> p2p could be generating all sorts of incoming and outgoing traffic. Or if
> it saturates your upload, that can adversely affect downloads. It can
> also use up all of your NAT ports (until they time out and are freed up).
> To get around that, you may either need to throttle you p2p program, or do
> some sort of QoS or ToS (quality or type of service) queuing.

Yep, not uncommon for damn p2p sw to suck anything out of your
upload which often means your download is hogged in addition.;(
Presumingly as you can't even get the needed packets out to "ACK"
a running download. 'tc' can be used to shape outgoing which
results in better downloads.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 326: We need a licensed electrician to replace
the light bulbs in the computer room.

"David Efflandt" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Tue, 15 Mar 2005 21:29:38 -0500, Haider Kazmi <(E-Mail Removed)>
> wrote:
>> Hi Folks, I didn't know where to post this, but this seems the most
>> promising.
>>
>> Basically my router is using approx. 3 times the bandwidth that I am
>> actually using.
>>
>> What I mean is this.
>>
>> Say I am uploading something at 3kBytes/sec. My router is doing
>> (confirmed
>> by my ISP) about 10kBytes/sec upload.
>
> Confirmed how? Have you run a DSL speed test when no other network apps
> are running on your local network?
My ISP runs a bandwidth monitor on their customers, they are the ones who
reported this. Then my router shows actual statistics of traffic going
through it. Further I dowloaded tcpview to see all socket connection on my
computer to make sure nothing else is running on my computer except my p2p
which was capped at 3kB/sec + AnalogX livestat network traffic grapher shows
me bandwidth on my adapter, which it shows correctly at 3kBytes/sec.

>
>> As you can see I reach max uploads at 20kBytes/sec as I am using close to
>> 600 kbits/sec because of this, I have a 3M/8k adsl line.

Well, I never reached the 800, 600 is what i can really get



> p2p could be generating all sorts of incoming and outgoing traffic. Or if
> it saturates your upload, that can adversely affect downloads. It can
> also use up all of your NAT ports (until they time out and are freed up).
> To get around that, you may either need to throttle you p2p program, or do
> some sort of QoS or ToS (quality or type of service) queuing.

Thats just it, my p2p is cofigure to cap at 3kB/sec uploads



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