How would I know what processes are responsible for network slowdowns

I have a computer that is an ssh server, webserver, mailserver,
participates in torrents sometimes etc.

At certain moments its internet connection slows down to a crawl, I am
not sure due to what.

I would like to know if there is some analyzer that would say that
protocol X is responsible for Y% of packets that went through in the
last 10 seconds, or some such.

thanks

i

"Ignoramus15447" <(E-Mail Removed)> wrote in message
news:0IBSg.80040$(E-Mail Removed)

> I have a computer that is an ssh server, webserver, mailserver,
> participates in torrents sometimes etc.
>
> At certain moments its internet connection slows down to a crawl, I am
> not sure due to what.
>
> I would like to know if there is some analyzer that would say that
> protocol X is responsible for Y% of packets that went through in the
> last 10 seconds, or some such.

Use http://ethereal.com and capture the packets during such an event, then
select Statistics -> Destinations -> (null filter) Create Stat.

Each destination address will display percentages and will have an
expandable listing of protocols, destination ports and percentages.

On Wed, 27 Sep 2006 17:15:36 -0700, ynotssor <(E-Mail Removed)> wrote:
> "Ignoramus15447" <(E-Mail Removed)> wrote in message
> news:0IBSg.80040$(E-Mail Removed)
>
>> I have a computer that is an ssh server, webserver, mailserver,
>> participates in torrents sometimes etc.
>>
>> At certain moments its internet connection slows down to a crawl, I am
>> not sure due to what.
>>
>> I would like to know if there is some analyzer that would say that
>> protocol X is responsible for Y% of packets that went through in the
>> last 10 seconds, or some such.
>
> Use http://ethereal.com and capture the packets during such an event, then
> select Statistics -> Destinations -> (null filter) Create Stat.
>
> Each destination address will display percentages and will have an
> expandable listing of protocols, destination ports and percentages.
>

Thanks, I will D/L it right now and will give it a try.

i