Re: Slow file sharing performance

Tanel wrote:
> On Sun, 31 Aug 2003, James Knott wrote:
> 
> 
>>>>I've notice that while my CIPE VPN works, that SMB and NFS access of 
>>>>my home network from my notebook is slow.  However, going the other 
>>
>>One computer is a 1.113 GHz PIII, the other is an Athlon XP 1700.  I'd 
>>suspect both ends have sufficient horsepower.  Also, when watching the 
>>data lights flash, it's apparent that the data transfer stops entirely 
>>for quite a while.  I would expect transfers to be slower due to the 
> 
> 
> Cipe uses UDP protocol and it is very sensitive to packet latency and 
> packet loss. So I think UDP does not suite for a VPN, where files must be 
> transported. Try SSH tunnels instead.

well, ssh uses tcp, and tcp ontop of another tcp is a bad idea.
The CIPE homepage explains why.
Besides, NFS usualy uses UDP too, and i dont really see a reason why UDP 
is worse than TCP if just the application that uses the UDP has as good, 
or better handling of packetloss, as does TCP.



JonB


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