From: mike-newsgroup@-DELETETHISPART-.upcraft.com   
      
   Ed J wrote:   
   > Simon wrote:   
   >> What are the ping response times across the tunnel, how do they compare   
   >> with the ping times across the internet between the 2 sites. Also bear   
   >> in mind it's the upstream speed of the broadband connection that will   
   >> limit the data throughput, not the downstream one, quite often this is a   
   >> lot less.   
   >   
   > The average ping response across the internet is 34 ms, while the average   
   > ping time within the VPN is 37 ms.  Not too much difference there.   
   >   
   > At one location, download speed is 4900 kbps, and upload is 660 kbps.   
   > At the other location, download speed is 1300 kbps, and upload is 770 kbps.   
   >   
   > I just ran file transfer tests through the VPN, and got about 700 kbps,   
   > so I guess the upload speed is the big culprit, not the VPN performance.   
   >   
   > Bummer. I was hoping for a one-time cost to improve performance, instead of   
   > paying for a higher class of service.   
   >   
   > Thanks,   
   > Ed   
      
   I guess you realize now that when one connection is downloading the   
   other has to be uploading so the lowest common denominator of bandwidth   
   will always be the limiting factor.  If you are downloading at 700kbps   
   through the VPN then congratulations.  It's working as well as can be   
   expected.  It's not that the performance is terrible, you simply are   
   experiencing the reality that LAN's typically operate at 100Mbit and   
   your "high speed" Internet link is more than 100 times slower at less   
   than 1Mbit effective speed.  It may be 100 times faster than dialup but   
   it would need to get 100 times faster to match your LAN at the office.   
      
      
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   Mike Drechsler (mike-newsgroup@-deletethispart-.upcraft.com)   
      
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