From owner-freebsd-isp Wed Aug 27 14:18:36 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id OAA08003 for isp-outgoing; Wed, 27 Aug 1997 14:18:36 -0700 (PDT) Received: from helena.regio.net (jens@helena.regio.net [195.88.8.113]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id OAA07974 for ; Wed, 27 Aug 1997 14:18:27 -0700 (PDT) Received: from localhost (jens@localhost) by helena.regio.net (8.8.5/8.8.5) with SMTP id XAA01635; Wed, 27 Aug 1997 23:15:02 +0200 Date: Wed, 27 Aug 1997 23:15:02 +0200 (CEST) From: Jens Glaser Reply-To: jens@regio.net To: "Tom T. Thai" cc: freebsd-isp@FreeBSD.ORG, linuxisp@friendly.jeffnet.org Subject: Re: ISDN, 56K In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from QUOTED-PRINTABLE to 8bit by hub.freebsd.org id OAA07989 Sender: owner-freebsd-isp@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk 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