[Mono-osx] Packet loss with sockets

[Miguel de Icaza]

Hello,

> Under mac os x the same code results in packet loss.  The greater the 
> distance between server and client, the greater the loss.  I'm pretty sure 
> this is due to mono for two reasons:

I doubt that this is a Mono issue.

> 1) I've tried pinging various servers using native utilities, and no packet 
> loss is apparent.

How do you know that packets are not being lost and just being resent by
TCP?

> 2) If it were a problem with the mac's network card, I wouldn't think 
> distance would be such a factor.  But when on a local network, the packet 
> loss is minimal (though still occures), while over larger distances there's 
> as much as 90% packet loss.
> 
> My understanding is that tcp is supposed to be guarenteed to not have packet 
> loss, as any lost packets are detected and resent.  So I would think that if 
> there was a problem with the network card the rate of transmission would 
> just be very slow.  But packets are lost and not resent.
> 
> Has anyone else seen this?  I'm not an expert with such things, so is it 
> possible that it actually is a hardware issue?
> 
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-- 
Miguel de Icaza <miguel at ximian.com>