[11102] in North American Network Operators' Group
Re: is there a market for this?
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Mon Jul 21 18:26:26 1997
To: Chris Wilson <cbw@atlantic.net>
cc: nanog@merit.edu
In-reply-to: Your message of "Mon, 21 Jul 1997 18:02:46 EDT."
<Pine.LNX.3.96.970721180138.20343A-100000@rio.atlantic.net>
Reply-To: perry@piermont.com
Date: Mon, 21 Jul 1997 18:17:16 -0400
From: "Perry E. Metzger" <perry@piermont.com>
Chris Wilson writes:
> I was (somewhat) following a dicussion about high speed communications
> handled over the PCI bus, and there's a company that makes T1/T3-level
> serial cards for PC's, and from what they were saying, there's no way to
> reach even a full T3 worth of bandwidth on a PCI bus,
PCI is 33mhz at 32bits = about a gigabit per second. Fast PCI is
66mhz, and a fast 64bit PCI standard is coming, which yields 4Gbps
across the bus. Now, admittedly, you can't get that fully -- but if
you claim you can't get a mere 45mbps across the bus per second you
are doing something desperately wrong and stupid, like making the main
CPU deal with *way* too much of the work. Of course, most serial
communications companies ARE doing things desperately wrong and
stupid, but that another story...
Perry
