[plug] What you give shall you receive....

[John Summerfield]

> Hello Pluggers
> 
> Bruised and bloody by some modem wars I seek assistance.
> 
> I have configured a simple PPP link between two 56K modems. In one
> direction I can achieve the wonderful throughput figure of 5.6 Kbytes
> per second (measured by ftp'ing a 1 Meg file). In the other direction I
> get exactly half that figure (2.8 Kbytes per second, measured by ftp'ing
> a 1 Meg file). Both modems are external Hayes Accura 56K+.

You should get about 3k/sec each way. 56K modems are asymmetric and can 
only get that rate on incoming data. Outbound data goes at 33k6.

The reason is that data loses time in the analog to digital and digital to 
analog conversion. The better IAPs have digital equipment that avoids the 
translation between their systems and the local exchange.

Better in this context means those who offer 56K connexions.

-- 
Cheers
John Summerfield
http://os2.ami.com.au/os2/ for OS/2 support.
Configuration, networking, combined IBM ftpsites index.