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Re: fastest serial speeds through ppp and/or pppd?
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: fastest serial speeds through ppp and/or pppd?
- From: Diana Eichert <deichert_(_at_)_wrench_(_dot_)_com>
- Date: Fri, 3 Dec 1999 13:42:00 -0700 (MST)
per a suggestion to look at http://www.byterunner.com/
i've ordered a single port 16650, clock multiplier selectable, card
sounds like it should be able to support 230k-460k rates, with the
interface set at 115k and it multipled on the box.
guess i'll see how it works when it gets here.
> In message <Pine_(_dot_)_GSO_(_dot_)_4_(_dot_)_10_(_dot_)_9912031159240_(_dot_)_21371-100000_(_at_)_inago_(_dot_)_swcp_(_dot_)_com>,
> Diana Eichert writes:
> >on i386 boxes there is support for 16450-16650, 16850 in the pccom driver.
> >I'd like to push 460kbps to an external ISDN terminal adapter, so the
> >builtin STAC compression will take effect. I know 16550 wont support this.
> >Anyone else doing this ? which UART serial card did you use? and/or
> >which card?
> >also in the past there was a problem with setting the speed in userland
> >ppp to over 115k, is that still an issue.
> You need a card which allows the multiplier to be overridden with a jumper.
> Finding one can be difficult, SIIG used to have an ISA card with multiplier
> jumpers. It had two soldered 16550s and two open sockets for whatever
> (like 16850s)...
> Jason Downs
VP Technical Services
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