FDDI advice - HECnet

10 Oct 2013

A gigaswitch/FDDI, or a dechub    900 module?
The gigaswitch were very reliable, a pleasure to manage.

Van: Brian Hechinger
Verzonden: donderdag 10 oktober 2013 14:44
Aan: hecnet at Update.UU.SE
Beantwoorden: hecnet at Update.UU.SE
Onderwerp: Re: [HECnet] FDDI advice

On Thu, Oct 10, 2013 at 02:36:04PM +0200, Peter Lothberg wrote:
...

 FDDI/CDDI is a dual ring token ring bus, with 4470 MTU byte packets,
 it has 802.-- frames. DEC had a mode where you turned the token off
 and used it for ptp full duplex. 
I didn't know about the ptp thing. That's nifty.

...
  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.

...
  But you need nothing to build a FDDI ring, its a A and
a B ring, you
 can just plug the cards together with fiber-patch-cables. 
Unless you have one of those obnoxious single attached station cards.

-brian