Date: Thu, 10 Feb 2000 11:37:40 -0500 From: "Louis A. Mamakos" <louie@TransSys.COM> To: Len Conrad <lconrad@Go2France.com> Cc: freebsd-hackers@freebsd.org Subject: Re: T1 / E1 PCI card for FreeBSD? Message-ID: <200002101637.LAA05863@whizzo.transsys.com> In-Reply-To: Your message of "Thu, 10 Feb 2000 17:17:57 %2B0100." <4.2.2.20000210170826.00b27e40@mail.Go2France.com> References: <Your message of "Thu, 10 Feb 2000 08:41:23 MST." <38A2DC23.9A4E995@softweyr.com> <20000209151455.8E6471F17@bert.kts.org> <4.2.2.20000208185157.00c97100@mail.Go2France.com> <4.2.2.20000209191939.060d58a0@mail.Go2France.com> <38A2DC23.9A4E995@softweyr.com> <4.2.2.20000210170826.00b27e40@mail.Go2France.com>
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> Hi Louie, > > >You've got to look at what you're actually getting as a delivered capability. > > What we are looking for is just 30 x 64 kbit incoming ISDN channels for > remote access to Internet. "remote access concentrator". > > >channels. Some of them might be combined with others to provide Nx64kb/s > > I see the Portmaster 3 can bond channels even across PM3 chassis, but we > would not need anything so fancy as that, as least in the first > phase. This was different from what I had described, which is combining two or more 64kb/s channels into an aggregate channel of higher capacity; essentially a fractional-E1 (or T1). The "bonding" thing you referred to is really PPP multi-link where a packet is segmented, and sent in parallel over multiple links. > Much more "sellable" to our clients (paying metered access for > local time charges for ISDN in Europe) would be hardware STAC compression, > ie, Lucent sells a card for the PM3 for hardware-assisted compression, for > all 60 channels compressed in a 2 x E1 chassis. Is there a PCI > stac-compression card supported by fbsd? I dunno, if it was me, I'd just buy an Ascend/Lucent MAX or TNT box and declare success. I suppose you expose multiple devices, one per channel, like the sr driver does for one channel. But this is something of a different beast since you'll also need to do something about the ISDN signalling. I'm not too familiar with how the isdn4bsd code is structured. louie To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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