Date: Wed, 27 Aug 1997 23:15:02 +0200 (CEST) From: Jens Glaser <jens@helena.regio.net> To: "Tom T. Thai" <tomthai@future.net> Cc: freebsd-isp@FreeBSD.ORG, linuxisp@friendly.jeffnet.org Subject: Re: ISDN, 56K Message-ID: <Pine.LNX.3.96.970827225323.1547D-100000@helena.regio.net> In-Reply-To: <Pine.BSD.3.91.970827154858.13837E-100000@dream.future.net>
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Hi, On Wed, 27 Aug 1997, Tom T. Thai wrote: > For those that are using Unix RAS boxes (termserver), how are you > handling ISDN and 56K connections? Hardware? MPPP? Well, for small POPs we just set up a Linux server using portslave and a multiport serial (Cyclades) connected to USR Sportsters (33k6 analogue lines) and ZYXEL OmniTA128s (digital lines, handles two B channels simultaneously with two serial ports). The OmniTA128s have a problem: they somehow "hang" up to multiple times a week due to some firmware bugs .. For the bigger POPs (>8 lines) we currently rely on ASCEND´s K56Flex modem cards integrated in their MAX routers - connected to a PRI (=30 B-channels) line. BTW, the K56Flex firmware is also buggy :) It generates lots of CRC errors in conjunction with the PRI line - but Ascend promised a fix. Regards, -- Jens Glaser Am Holderstrauch 13, 36041 Fulda, 0661/9429507 jens@regio.net .. at work: Lindenstraße 37a, 36037 Fulda, 0661/9011777
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