[11117] in North American Network Operators' Group
RE: is there a market for this?
daemon@ATHENA.MIT.EDU (Jacques Vidrine)
Mon Jul 21 20:42:52 1997
From: Jacques Vidrine <nectar@staff.communique.net>
To: "'Jeremiah Kristal'" <jeremiah@corp.idt.net>,
Chris Wilson
<cbw@atlantic.net>
Cc: "Perry E. Metzger" <perry@piermont.com>, nanog@merit.edu
Date: Mon, 21 Jul 1997 19:36:35 -0500
FWIW, I can't confirm this at this second, but I believe that at least
the cisco 7200 series routers have a three PCI bus backplane. And it is
claimed to support an OC-3c VIP2 port adapter, although I haven't put
mine in action to try yet (and when I do I won't be running anywhere
near 155 Mbps anyway). A single VIP2 port adapter can only connect to
one of the three buses, so presumably cisco believes that PCI is up to
the task. I don't know what the clockrate is, and I don't know if it
is 32-bit or 64-bit.
> -----Original Message-----
> From: Jeremiah Kristal [SMTP:jeremiah@corp.idt.net]
> Sent: Monday, July 21, 1997 5:40 PM
> To: Chris Wilson
> Cc: Perry E. Metzger; nanog@merit.edu
> Subject: Re: is there a market for this?
>
> On Mon, 21 Jul 1997, Chris Wilson wrote:
>
>
> Actually, I've seen a PCI-based box doing 15MByte/sec sustained
> read/write
> to disk, so it is possible to do it, but it's not likely to be
> standard
> for quite a while. I certainly think that an OC-12 card would be
> overkill
> though. I'm also wondering why someone who can afford an OC-x would
> be
> trying to save a couple bucks by using a PCI-based router.
> Once you get into this type of bandwidth, I think a bus becomes a
> serious
> chokepoint.
>
>
