Date: Thu, 04 Jan 2018 10:00:43 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Stefan Esser <se@freebsd.org> Cc: Pedro Giffuni <pfg@FreeBSD.org>, Warner Losh <imp@bsdimp.com>, Brooks Davis <brooks@freebsd.org>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers <src-committers@freebsd.org> Subject: Re: svn commit: r327086 - head/sys/dev/lmc Message-ID: <62258.1515060043@critter.freebsd.dk> In-Reply-To: <3f4a7247-e711-c65a-d973-c929ac8726db@freebsd.org> References: <201712221715.vBMHF27m046894@repo.freebsd.org> <20180103220942.GC95035@spindle.one-eyed-alien.net> <CANCZdfrfRitzWHEn7BtiDC=4bfwrHUGg6N9%2Bq%2Ba4eFUY6uzYdw@mail.gmail.com> <CANCZdfqFQL78Frmzu7vsT=ZdN-f8-mxje0LSor3whFR8XzhxgA@mail.gmail.com> <CANCZdfrQEm5V7Uq2E9ie52bmg6kg%2BjotX=95BYf7HS7hQjDYog@mail.gmail.com> <02a7407a-0445-e503-9279-e893f53f8ef0@FreeBSD.org> <3f4a7247-e711-c65a-d973-c929ac8726db@freebsd.org>
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-------- In message <3f4a7247-e711-c65a-d973-c929ac8726db@freebsd.org>, Stefan Esse= r writes: >Am 04.01.18 um 00:41 schrieb Pedro Giffuni: >It appears to be a strange beast that uses the Ethernet chip to generate = a >bit stream which is then converted to HDLC. Not sure whether these were u= sed >for Frame Relay or to connect to the British X.25 JANET, a few decades ag= o. >Perhaps also to connect to SS7 signaling networks? They were actually pretty versatile, we used them both for "blank" E1 and Nx64 scenarios, and I know they were used for Frame Relay several places in US. I don't think they could do SS7 or ISDN like the MUSYCC chip could. But nobody uses T1/E1/T3/E3 lines any more for anything... -- = Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe = Never attribute to malice what can adequately be explained by incompetence= .
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