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Date: Sat, 23 Mar 2013 19:27:31 -0700
Message-ID: <CACh7GpFVcXt+k52PBZLpdt=VTmH7dbQoC+2Z4ZenYPBjDZKY3g@mail.gmail.com>
From: Mark Friedenbach <mark@monetize.io>
To: Jay F <jayf@outlook.com>
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Cc: Bitcoin Development <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] A bitcoin UDP P2P protocol extension
Precedence: list

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Nearly all of these new(er) user-mode transports run over UDP, so you can
hole-punch and port forward just the same. Some which don't can
nevertheless be tunneled, to the same effect.

Ultimately I don't have any skin in this game though. Just trying to save
someone from reinventing a perfectly good wheel ;)


On Sat, Mar 23, 2013 at 5:57 PM, Jay F <jayf@outlook.com> wrote:

> My first concern was that I and about everyone else only has TCP/UDP
> port forwarding, but at least for the first:
>
> UDT uses UDP to transfer bulk data with its own reliability control and
> congestion control mechanisms. Multiple UDT flows can share a single UDP
> port, thus a firewall can open only one UDP port for all UDT connections.
>
> The latter appears not so friendly to NAT.
>
>
> On 3/23/2013 3:30 PM, Mark Friedenbach wrote:
> > If you're considering a datagram protocol, you might be interested in
> > some more modern alternatives to UDP:
> >
> > UDT: Breaking the Data Transfer Bottleneck
> > http://udt.sourceforge.net/
> >
> > Stream Control Transmission Protocol
> > http://en.wikipedia.org/wiki/Stream_Control_Transmission_Protocol
> >
> >
> >
>
>
>
> ------------------------------------------------------------------------------
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> Make your web apps faster with AppDynamics
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>

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<div dir=3D"ltr"><div>Nearly all of these new(er) user-mode transports run =
over UDP, so you can hole-punch and port forward just the same. Some which =
don&#39;t can nevertheless be tunneled, to the same effect.<br><br></div><d=
iv>
Ultimately I don&#39;t have any skin in this game though. Just trying to sa=
ve someone from reinventing a perfectly good wheel ;)<br></div></div><div c=
lass=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Sat, Mar 23, 201=
3 at 5:57 PM, Jay F <span dir=3D"ltr">&lt;<a href=3D"mailto:jayf@outlook.co=
m" target=3D"_blank">jayf@outlook.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">My first concern was that I and about everyo=
ne else only has TCP/UDP<br>
port forwarding, but at least for the first:<br>
<br>
UDT uses UDP to transfer bulk data with its own reliability control and<br>
congestion control mechanisms. Multiple UDT flows can share a single UDP<br=
>
port, thus a firewall can open only one UDP port for all UDT connections.<b=
r>
<br>
The latter appears not so friendly to NAT.<br>
<div class=3D"im HOEnZb"><br>
<br>
On 3/23/2013 3:30 PM, Mark Friedenbach wrote:<br>
&gt; If you&#39;re considering a datagram protocol, you might be interested=
 in<br>
&gt; some more modern alternatives to UDP:<br>
&gt;<br>
&gt; UDT: Breaking the Data Transfer Bottleneck<br>
&gt; <a href=3D"http://udt.sourceforge.net/" target=3D"_blank">http://udt.s=
ourceforge.net/</a><br>
&gt;<br>
&gt; Stream Control Transmission Protocol<br>
&gt; <a href=3D"http://en.wikipedia.org/wiki/Stream_Control_Transmission_Pr=
otocol" target=3D"_blank">http://en.wikipedia.org/wiki/Stream_Control_Trans=
mission_Protocol</a><br>
&gt;<br>
&gt;<br>
&gt;<br>
<br>
<br>
</div><div class=3D"HOEnZb"><div class=3D"h5">-----------------------------=
-------------------------------------------------<br>
Everyone hates slow websites. So do we.<br>
Make your web apps faster with AppDynamics<br>
Download AppDynamics Lite for free today:<br>
<a href=3D"http://p.sf.net/sfu/appdyn_d2d_mar" target=3D"_blank">http://p.s=
f.net/sfu/appdyn_d2d_mar</a><br>
_______________________________________________<br>
Bitcoin-development mailing list<br>
<a href=3D"mailto:Bitcoin-development@lists.sourceforge.net">Bitcoin-develo=
pment@lists.sourceforge.net</a><br>
<a href=3D"https://lists.sourceforge.net/lists/listinfo/bitcoin-development=
" target=3D"_blank">https://lists.sourceforge.net/lists/listinfo/bitcoin-de=
velopment</a><br>
</div></div></blockquote></div><br></div>

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