[HECnet] FDDI advice

[Gregg Levine]

Hello!
I was always told that a 1RU shape was about the size of a pizza box.
Since pizza and I are not on speaking terms I simply took the
individual's words for factual information until told otherwise.
-----
Gregg C Levine gregg.drwho8 at gmail.com
"This signature fought the Time Wars, time and again."


On Thu, Oct 10, 2013 at 1:12 PM, Cory Smelosky <b4 at gewt.net> wrote:
On Thu, 10 Oct 2013, Hans Vlems wrote:

A hu is two inches, right?


It's actually some uneven number that's around 1.5.


Van: Brian Hechinger
Verzonden: donderdag 10 oktober 2013 16:35
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] FDDI advice

On Thu, Oct 10, 2013 at 02:32:26PM +0000, Paul_Koning at Dell.com wrote:

On Oct 10, 2013, at 8:44 AM, Brian Hechinger <wonko at 4amlunch.net>
wrote:

On Thu, Oct 10, 2013 at 02:36:04PM +0200, Peter Lothberg wrote:
...
For example cisco/cabletron/crecendo had ethnernet switches with a
FDDI uplink, that you could use.

DEC made one as well, it was that large modular thingie. I used to
have
one. Never got it powered on as it was enormous.

The original one is the DECbridge 500, a 3U rack mounted device, 3 or 4
cards, 3 Ethernets (10 Mb/s) to FDDI. See the DTJ
issue I mentioned in my previous note.

The other two: the DECbridge 900, which plugged into the 900 series
modular enclosure. It's about the side of a 400 page
hardcover book, FDDI to 6 Ethernet ports, 60,000 packets per second using
a MC68040 at 25 MHz. I'm still proud of that. (I wrote
the "fast path" packet forwarding firmware.)

Neat!

Then there is the Gigaswitch, a large modular chassis with lots of line
cards, some FDDI, some Ethernet, possibly some with
other stuff I don't remember.

I think this is the one I had. Big modular thing. Maybe (and going by
really fuzzy memory here) 8U high?

-brian



--
Cory Smelosky
http://gewt.net Personal stuff
http://gimme-sympathy.org Projects