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Standard User philippercival
(committed) Thu 22-Sep-11 10:41:13
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FTTC and Skype


[link to this post]
 
I have been on FTTC for just over a week, and my provider has an excellent bandwidth usage page that I can visit.

Before going to FTTC, My usage was always relatively small (3.4mbs connection). Now it is vastly higher. In part I have to admit this is me trying out a few new things.

The usage page shows traffic every ten minutes and there are lots of occasions when I know that there should have been very little traffic and there has been lots.

Today I have signed out of Skype and killed the process and the usage is minimal again.

Has anyone else noticed this behaviour? If my suspicion is right then it would use several GB of my peak time monthly usage allowance.

I probably ought to add I have used Skype for ages and think it is a great product.
Standard User MHC
(legend) Thu 22-Sep-11 10:50:06
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Re: FTTC and Skype


[re: philippercival] [link to this post]
 
Yes, Skype gobbles your bandwidth.

I see the same and stay signed out and only open Skype when I have a call scheduled - I don't use it for normal calls just international conference calls.





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M H C


taurus excreta cerebrum vincit
Administrator MrSaffron
(staff) Thu 22-Sep-11 11:03:37
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Re: FTTC and Skype


[re: philippercival] [link to this post]
 
Read http://en.wikipedia.org/wiki/Skype_protocol

Suspect you may have because of your high bandwidth become a sharing node, particularly if your NAT is very open or non-existent.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.


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Standard User MHC
(legend) Thu 22-Sep-11 11:16:13
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Re: FTTC and Skype


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
Read http://en.wikipedia.org/wiki/Skype_protocol

Suspect you may have because of your high bandwidth become a sharing node, particularly if your NAT is very open or non-existent.


But why? It would normally require a complete link and pushing traffic in and out on the same connection serves no purpose.

I have seen problems in the past where our transatlantic connections were having bandwidth "stolen" by Skype - a continuous stream of 10s of Mbps - until we banned Skype in the company and insisted on it being removed from all PCs.





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M H C


taurus excreta cerebrum vincit
Standard User yarwell
(sensei) Thu 22-Sep-11 11:19:20
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Re: FTTC and Skype


[re: MHC] [link to this post]
 
http://yarwell.blogspot.com/2006/11/skype-stole-my-p...

its a P2P architecture I don't know if the actual voice or video flows through nodes but certainly the control does.

maybe I should packet sniff Skype chat

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Are your kids pirates ? Limewire, Bearshare, Kazaa, BitTorrent, eMule are all tools of the trade.
Standard User philippercival
(committed) Thu 22-Sep-11 11:56:36
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Re: FTTC and Skype


[re: MrSaffron] [link to this post]
 
Thank you for your replies.

My router does NAT and connected to the router is my Linux box Firewall, to which I connect, so NAT on that as well. Confess the firewall was set up by my nephew and is beyond me, https://www.grc.com says I am in true stealth mode, but If Skpe is advertising itself from within my system I appreciate that will make no difference.

I did read lots of things about NAT stops you becoming a supernode, but they were all quite old messages (2005-2009) so wondered if Skype had modified their software.
Standard User yarwell
(sensei) Thu 22-Sep-11 13:11:29
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Re: FTTC and Skype


[re: philippercival] [link to this post]
 
I did read lots of things about NAT stops you becoming a supernode

I don't think they were true even then.

Phil

MaxDSL - goes as fast as it can and doesn't read the line checker first.

MaxDSL diagnostics
Are your kids pirates ? Limewire, Bearshare, Kazaa, BitTorrent, eMule are all tools of the trade.
Standard User GeeTee
(committed) Thu 22-Sep-11 15:42:55
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Re: FTTC and Skype


[re: philippercival] [link to this post]
 
Skype probably uses uPNP (http://en.wikipedia.org/wiki/Universal_Plug_and_Play) on the router to open and close ports as required.

You can usually disable uPNP on the router's web interface, although doing so may make some applications and games play up.
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