Re: serial port operation above 2048Kbps for sat circuit

From: Gert Doering (gert@greenie.muc.de)
Date: Sat Jul 14 2001 - 04:10:30 EDT


Hi,

On Fri, Jul 13, 2001 at 08:11:01PM -0400, George Robbins wrote:
> I'd be careful of the over-generalization, while the board may have
> the aggregate bandwidth to do 4 m-bit/s, that doesn't mean the chips
> or driver/filter circuitry are "guarenteed" to support it.

Ummm, well, for all the boards I've checked the cisco docs so far (NP-4T,
NM-4T, PA-4T) it was in the specs.

The PA-8T-X.21 has two groups of 4x2, so it can do 2x 8 Mbit, but not
16Mbit.

> If you need something that will work for sure when you plug it in,
> as opposed to "will probably work", then you want to accept the Cisco
> spec's as given.

Those *are* the specs :-)

From experiments I know that a 1601 *can* run its T port at 4 Mbits
and it will only lead to an "occasional" packet drops. I wouldn't
actually use it that way, though...

gert

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Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert.doering@physik.tu-muenchen.de



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