The actual case isn't as nice.
using a 1x (112k max) cellular data card to transfer the contents of a data logger to a host site. an Encrypted tunnel is created over the 1x slowing the actual data rate due to overhead, but the system stays connected for weeks on end. The data logger supplies Massive chunks of binary data (compresses by less that 5%) which a laptop uploads to the host site. due to band width and data rate slow down due to exceeding the data cap right before the end of the period, it can take days to upload a single data packet (around 3-4gigs of data). I tried breaking the packet up into smaller chunks, didn't really change anything, the link is continuously active. Would be nice to go to 3g but it's not available at the site (we are lucky to get 1x). I have timeouts set to ridiculous numbers to make it work. We can actually lose the 1x link and the transfer picks back up when the tunnel reconnects. BTW this costs a chunk, and the cell carrier isn't happy, but it's within the terms of the contract. > [email protected] wrote: >> How long does it take a 14.4k dial up to upload 4gig? > > Looong, guess it would never succeed. If memory serves > well it was a game of hazard to get much less data > transferred uncorrupted over a phone line those days. > Is this a real use case? > > -- > Arno Garrels > > > > -- > To unsubscribe or change your settings for TWSocket mailing list > please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket > Visit our website at http://www.overbyte.be > -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
