Date: Thu, 16 Jul 2020 14:20:00 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: lutz@donnerhacke.de, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: [Differential] D25681: if_spppsubr: Define a few LCP options, Recognize (but still reject) multilink PPP config options Message-ID: <aa0c256d-dfc2-1651-67dd-c433a25d6d7d@grosbein.net> In-Reply-To: <2207286f8cb07c7ec78a86dcb90d4a32@localhost.localdomain> References: <differential-rev-PHID-DREV-vnxglrfwqvfleoykt74t-req@reviews.freebsd.org> <2207286f8cb07c7ec78a86dcb90d4a32@localhost.localdomain>
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16.07.2020 14:12, lutz_donnerhacke.de (Lutz Donnerhacke) wrote: > > ce(4) for PCI G.703/E1 card, > > cp(4) for PCI V.35/RS-232/RS-530/RS-449/X.21/G.703/E1/E3/T3/STS-1 cards, > > and cx(4)/ctau(4) for some ISA cards but these do not exist in FreeBSD 13 anymore, > > removed by emaste@ recently. > > > > Both ce(4) and cp(4) are i386-only drivers at present. > > Such synchronous lines are still in use (here): > > - G.703 is common in phone systems. > - X.21 for leased lines (with old contracts), > - E1/E3 for SDH (carrier grade) leases lines. > - RS-232 is the ordinary serial port, the other RS- are industry specific serials (mainly other voltages) This is not about lines and protocols, this is about old PCI cards for PCs manufactured 15+ years ago. > But you are right: Do we really need a specialized PPP hardware support these days? > Do we really want to run a recent kernel on this antique hardware? It would be a sacrilege. > > Normal PPP over serial lines (currently available) does work using ppp(4)
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