Re: X.75 ?

Martin Bokaemper (mnbokaem@pizza.franken.de)
Sun, 13 Jul 97 23:20:23 +0200

Hi

[Tom Samplonius <tom@sdf.com>]
>[Florian Lohoff <flo@mini.gt.owl.de>]
>> is there any support for X.75 (Planned ?) as X.75 is much more popular
>> than V.120 in Germany (AOL uses X.75 in Germany instead of V.120).
>
> I don't know much about X.75, but if provides equivelent features to
>V.120, I have to ask "why?" V.120 is async emulation that runs over a
>sync connection. It adds a lot of overhead, and provides slow
>connections. Why not use regular sync PPP?

V.120 is used for 'login'-service, not 'network'. For login
connections (telnet, rlogin, portmux) a async emulation is necessary.
V.120 (and the terrible V.110) is one possible solution - but far more
ISDN-adapters use X.75 for that purpose.
So I also hope that one day the PM3 will accept X.75 in addition to
V.110/120.

Martin.

--