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  #1 (permalink)  
Old 11-22-2007, 07:26 PM
Chris
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Default How much bandwidth does it use to keep Skype running?

How much bandwidth does it use to keep Skype running?

I am now on a limited account - and want to know whether it would be a
problem.
--
Chris

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  #2 (permalink)  
Old 11-22-2007, 09:29 PM
Brian A
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Default Re: How much bandwidth does it use to keep Skype running?

On Thu, 22 Nov 2007 20:26:12 +0000, Chris <nospam@[127.0.0.1]> wrote:

>How much bandwidth does it use to keep Skype running?
>
>I am now on a limited account - and want to know whether it would be a
>problem.

I have a relation in New Zealand who stopped using Skype because he
had a limited download and found that Skype was using up a lot of his
allowance.
You will find differing opinions re Skype. It is a peer to peer system
- quite unlike SIP voip. Hence a straight answer to your question
isn't so easily possible. Skype, I understand, have increased the
resolution of the video with the latest version of their software.
That could make it even more bandwidth hungry or it could be simply an
improvement in efficiency, I don't know This is a link to a study on
Skype. If you do a search in it you'll find this paragraph.

"A super node is an ordinary hostís end-point on the
Skype network. Any node with a public IP address having
sufficient CPU, memory, and network bandwidth is a candidate to
become a super node."

http://www1.cs.columbia.edu/~library...ucs-039-04.pdf




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  #3 (permalink)  
Old 11-23-2007, 06:38 AM
Sinna
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Default Re: How much bandwidth does it use to keep Skype running?

Chris wrote:
> How much bandwidth does it use to keep Skype running?
>
> I am now on a limited account - and want to know whether it would be a
> problem.

I really don't know as I don't want to use Skype at all.
When you read their license agreement you confirm they are allowed to
use your (expensive) bandwidth to route others messages. You can't
control this at all.

Why don't you take a look at other VoIP-solutions using open protocols
(like SIP) performing exactly the same at even a lower cost when dialing
to fixed line. Plenty of information about bandwidth consumption is
available for the different codecs applied.

A suggestion: http://www.voipbuster.com and if you want all its brothers
and sisters, you can compare rates at http://www.backsla.sh/betamax.

Sinna

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  #4 (permalink)  
Old 11-23-2007, 07:22 AM
Heimo Hetl
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Default Re: How much bandwidth does it use to keep Skype running?

Chris <nospam@[127.0.0.1]> wrote:

> How much bandwidth does it use to keep Skype running?


Nobody really knows but Skype itself. It depends a lot on wether or not
your computer becomes what they call a supernode - a hub in the network
which relays other parties' calls, instant messages and signaling. If
you make sure your computer cannot be reached from the outside on any
port, if you block all outgoing ports except https, and if you proxy
http and ftp, then you most likely render your computer useless for the
skype network and make it dependent on a third party supernode itself.

cheers
Heimo


--
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  #5 (permalink)  
Old 11-23-2007, 08:37 AM
tinnews@isbd.co.uk
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Default Re: How much bandwidth does it use to keep Skype running?

Sinna <news4sinna_NOSPAM@hotpop.com> wrote:
> Chris wrote:
> > How much bandwidth does it use to keep Skype running?
> >
> > I am now on a limited account - and want to know whether it would be a
> > problem.

> I really don't know as I don't want to use Skype at all.
> When you read their license agreement you confirm they are allowed to
> use your (expensive) bandwidth to route others messages. You can't
> control this at all.
>

You can if you tell Skype not to start up when you start your system
up (which it does by default). I wonder how many people don't
realise this when they install Skype and thus have Skype running all
the time that their computer is turned on.

> Why don't you take a look at other VoIP-solutions using open protocols
> (like SIP) performing exactly the same at even a lower cost when dialing
> to fixed line. Plenty of information about bandwidth consumption is
> available for the different codecs applied.
>
> A suggestion: http://www.voipbuster.com and if you want all its brothers
> and sisters, you can compare rates at http://www.backsla.sh/betamax.
>
> Sinna


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Chris Green

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  #6 (permalink)  
Old 11-23-2007, 08:41 AM
tinnews@isbd.co.uk
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Default Re: How much bandwidth does it use to keep Skype running?

Heimo Hetl <trashcan@hetl.net> wrote:
> Chris <nospam@[127.0.0.1]> wrote:
>
> > How much bandwidth does it use to keep Skype running?

>
> Nobody really knows but Skype itself. It depends a lot on wether or not
> your computer becomes what they call a supernode - a hub in the network
> which relays other parties' calls, instant messages and signaling. If
> you make sure your computer cannot be reached from the outside on any
> port, if you block all outgoing ports except https, and if you proxy
> http and ftp, then you most likely render your computer useless for the
> skype network and make it dependent on a third party supernode itself.
>

.... but that would also make it impossible to make (or receive) Skype
calls wouldn't it?

Much easier simply to configure Skype not to run at startup and thus
to only have it running when you need it. There's a little check box
in the Skype configuration which does this. By default Skype as
installed will run at system startup.

--
Chris Green

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  #7 (permalink)  
Old 11-23-2007, 08:55 AM
Heimo Hetl
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Default Re: How much bandwidth does it use to keep Skype running?

<tinnews@isbd.co.uk> wrote:

> [...] block all outgoing ports except https, and if you proxy
> > http and ftp,


> ... but that would also make it impossible to make (or receive) Skype
> calls wouldn't it?


No, Skype will still sneak out 443 (aka. https) and contact some
supernode somewhere. Try googling for "howto block skype" to find out
that it cannot, effectively, be blocked. At least not that easily.

> Much easier simply to configure Skype not to run at startup and thus
> to only have it running when you need it.


This will work, of course. Except that you obviously can't be skyped
when skype isn't running.

cheers
Heimo

--
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  #8 (permalink)  
Old 11-23-2007, 09:25 AM
Paul Hayes
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Default Re: How much bandwidth does it use to keep Skype running?

tinnews@isbd.co.uk wrote:
> You can if you tell Skype not to start up when you start your system
> up (which it does by default). I wonder how many people don't
> realise this when they install Skype and thus have Skype running all
> the time that their computer is turned on.
>


But a phone that people can't call you on is pretty useless isn't it?
Or do your friends/business associates call your mobile first to
pre-warn you that they want to call you?

cheers,
Paul.

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paul-at-polog40-dot-co-dot-uk

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  #9 (permalink)  
Old 11-23-2007, 11:53 AM
Sinna
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Default Re: How much bandwidth does it use to keep Skype running?

tinnews@isbd.co.uk wrote:
> Sinna <news4sinna_NOSPAM@hotpop.com> wrote:
>> Chris wrote:
>>> How much bandwidth does it use to keep Skype running?
>>>
>>> I am now on a limited account - and want to know whether it would be a
>>> problem.

>> I really don't know as I don't want to use Skype at all.
>> When you read their license agreement you confirm they are allowed to
>> use your (expensive) bandwidth to route others messages. You can't
>> control this at all.
>>

> You can if you tell Skype not to start up when you start your system
> up (which it does by default). I wonder how many people don't
> realise this when they install Skype and thus have Skype running all
> the time that their computer is turned on.
>

Perhaps you can also take a look at
https://www.cs.uwaterloo.ca/twiki/vi...eConfiguration. Applying
these recommendations prevents your Skype application can become a
bandwidth-consuming SuperNode.

Sinna

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  #10 (permalink)  
Old 11-23-2007, 01:04 PM
tinnews@isbd.co.uk
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Default Re: How much bandwidth does it use to keep Skype running?

Paul Hayes <nomailforme@polog40.co.uk> wrote:
> tinnews@isbd.co.uk wrote:
> > You can if you tell Skype not to start up when you start your system
> > up (which it does by default). I wonder how many people don't
> > realise this when they install Skype and thus have Skype running all
> > the time that their computer is turned on.
> >

>
> But a phone that people can't call you on is pretty useless isn't it?
> Or do your friends/business associates call your mobile first to
> pre-warn you that they want to call you?
>

Well they don't often post-warn me! :-)

--
Chris Green

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  #11 (permalink)  
Old 11-24-2007, 01:12 AM
{{{{{Welcome}}}}}
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Posts: n/a
Default Re: How much bandwidth does it use to keep Skype running?

tinnews@isbd.co.uk wrote:
> Heimo Hetl <trashcan@hetl.net> wrote:
>> Chris <nospam@[127.0.0.1]> wrote:
>>
>>> How much bandwidth does it use to keep Skype running?

>>
>> Nobody really knows but Skype itself. It depends a lot on wether or
>> not your computer becomes what they call a supernode - a hub in the
>> network which relays other parties' calls, instant messages and
>> signaling. If you make sure your computer cannot be reached from the
>> outside on any port, if you block all outgoing ports except https,
>> and if you proxy http and ftp, then you most likely render your
>> computer useless for the skype network and make it dependent on a
>> third party supernode itself.
>>

> ... but that would also make it impossible to make (or receive) Skype
> calls wouldn't it?
>
> Much easier simply to configure Skype not to run at startup and thus
> to only have it running when you need it. There's a little check box
> in the Skype configuration which does this. By default Skype as
> installed will run at system startup.



Only having it running when needed is a little pointless if you want people
to contact you.

Surely much better to use an adults VoIP service?


--
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http://petitions.pm.gov.uk/MetricNow
http://ec.europa.eu/consumers/dyna/r...rchives_en.cfm


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  #12 (permalink)  
Old 11-24-2007, 08:53 AM
tinnews@isbd.co.uk
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Default Re: How much bandwidth does it use to keep Skype running?

{{{{{Welcome}}}}} <bhx_spam@trapped__hotmail.co.uk> wrote:
> tinnews@isbd.co.uk wrote:
> > Heimo Hetl <trashcan@hetl.net> wrote:
> >> Chris <nospam@[127.0.0.1]> wrote:
> >>
> >>> How much bandwidth does it use to keep Skype running?
> >>
> >> Nobody really knows but Skype itself. It depends a lot on wether or
> >> not your computer becomes what they call a supernode - a hub in the
> >> network which relays other parties' calls, instant messages and
> >> signaling. If you make sure your computer cannot be reached from the
> >> outside on any port, if you block all outgoing ports except https,
> >> and if you proxy http and ftp, then you most likely render your
> >> computer useless for the skype network and make it dependent on a
> >> third party supernode itself.
> >>

> > ... but that would also make it impossible to make (or receive) Skype
> > calls wouldn't it?
> >
> > Much easier simply to configure Skype not to run at startup and thus
> > to only have it running when you need it. There's a little check box
> > in the Skype configuration which does this. By default Skype as
> > installed will run at system startup.

>
>
> Only having it running when needed is a little pointless if you want people
> to contact you.
>
> Surely much better to use an adults VoIP service?
>

That's exactly what I have but Skype is (sadly) a bit like Microsoft
and all pervasive so it's occasionally useful/necessary to be able to
run it.

--
Chris Green

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  #13 (permalink)  
Old 11-24-2007, 10:56 AM
alexd
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Posts: n/a
Default Re: How much bandwidth does it use to keep Skype running?

Brian A wrote:

> On Thu, 22 Nov 2007 20:26:12 +0000, Chris <nospam@[127.0.0.1]> wrote:
>
>>How much bandwidth does it use to keep Skype running?
>>
>>I am now on a limited account - and want to know whether it would be a
>>problem.

> I have a relation in New Zealand who stopped using Skype because he
> had a limited download and found that Skype was using up a lot of his
> allowance.
> You will find differing opinions re Skype. It is a peer to peer system
> - quite unlike SIP voip.


SIP is very much a peer to peer protocol.

http://en.wikipedia.org/wiki/Session...ation_Protocol

The way that SIP is used, however, apes the traditional PSTN, and masks the
peer to peer nature of it. This will change in time.

> Hence a straight answer to your question isn't so easily possible.


If you paying for your bandwidth, then presumably the answer to the
question "Skype?" is "no".

--
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11:52:32 up 13 days, 31 min, 2 users, load average: 0.12, 0.09, 0.10
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  #14 (permalink)  
Old 11-24-2007, 03:51 PM
Iain
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Default Re: How much bandwidth does it use to keep Skype running?

tinnews@isbd.co.uk wrote:
> I wonder how many people don't
> realise this when they install Skype and thus have Skype running all
> the time that their computer is turned on.


I wonder what use it would be not running all the time. I suppose you
could email people to tell then that you are about to call them on the
phone, but it seems a bit silly to have a phone that is notmally not
working.

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  #15 (permalink)  
Old 11-24-2007, 07:29 PM
tinnews@isbd.co.uk
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Default Re: How much bandwidth does it use to keep Skype running?

Iain <no-one@hairydog.co.uk> wrote:
> tinnews@isbd.co.uk wrote:
> > I wonder how many people don't
> > realise this when they install Skype and thus have Skype running all
> > the time that their computer is turned on.

>
> I wonder what use it would be not running all the time. I suppose you
> could email people to tell then that you are about to call them on the
> phone, but it seems a bit silly to have a phone that is notmally not
> working.


So do they have their computer turned on when they're not using it?
Unless the computer is on 24hrs/day the phone *won't* be working all
the time.

--
Chris Green

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  #16 (permalink)  
Old 11-24-2007, 08:00 PM
Iain
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Default Re: How much bandwidth does it use to keep Skype running?

tinnews@isbd.co.uk wrote:

> So do they have their computer turned on when they're not using it?
> Unless the computer is on 24hrs/day the phone *won't* be working all
> the time.


Well, I use my computers every day, so I leave them running, though I
turn the monitors off when not in use.

However, you do have a good point. That's one of the reasons I think
that dead-end Skype is a pretty poor choice. I use SIP-based VOIP with
ATAs that proper phones plug into.

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  #17 (permalink)  
Old 11-25-2007, 10:05 AM
Brian A
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Default Re: How much bandwidth does it use to keep Skype running?

On Sat, 24 Nov 2007 11:56:38 +0000, alexd <troffasky@hotmail.com>
wrote:

>Brian A wrote:
>
>> On Thu, 22 Nov 2007 20:26:12 +0000, Chris <nospam@[127.0.0.1]> wrote:
>>
>>>How much bandwidth does it use to keep Skype running?
>>>
>>>I am now on a limited account - and want to know whether it would be a
>>>problem.

>> I have a relation in New Zealand who stopped using Skype because he
>> had a limited download and found that Skype was using up a lot of his
>> allowance.
>> You will find differing opinions re Skype. It is a peer to peer system
>> - quite unlike SIP voip.

>
>SIP is very much a peer to peer protocol.
>
>http://en.wikipedia.org/wiki/Session...ation_Protocol

Yes, without reading that I can agree with you. I used the wrong
terminology. My intention was to intimate that it involved the use of
bandwidth of 'peers' who were not actually voice/video communicating
at the time.
>
>The way that SIP is used, however, apes the traditional PSTN, and masks the
>peer to peer nature of it. This will change in time.
>
>> Hence a straight answer to your question isn't so easily possible.

>
>If you paying for your bandwidth, then presumably the answer to the
>question "Skype?" is "no".


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