>Dear NetBSDers,
>   I have USRobotics 28,800 internal modems on two NetBSD-1.0 486/DX-33 
>machines.  I am using ppp to connect these machines.  Both systems use
>rtscts hardware flow control and transmit to the computer at 115200 baud
>with compression enabled.
[...]
>Any suggestions for how to prevent the silo overflows?

Buy a Hayes ESP card for each machine.  I was able to run my 28.8k
modem at 115.2k with the serial port on a SLOOOOW Zenith 386/20 with
*no* dropped chars using the ESP.  It was a lost cause with a 16550.
It will Just Work with the standard serial driver, with the Hayes
running in standard 16550-compat mode, except that it will give you a
1024-byte FIFO.

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  Michael L. VanLoon                                 michaelv@HeadCandy.com
       --<  Free your mind and your machine -- NetBSD free un*x  >--
     NetBSD working ports: 386+PC, Mac, Amiga, HP300, Sun3, Sun4, PC532,
                           DEC pmax (MIPS R2k/3k), DEC/AXP (Alpha)
     NetBSD ports in progress: VAX and others...
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