JMWOBUS@suvm.acs.syr.EDU (John M Wobus) (01/14/88)
We are considering buying ProNET-10 counter-rotating ring drivers. We can find lots of ProNET-10 customers, and ProNET-80 counter-rotating ring-driver customers, but can't find anyone using ProNET-10 counter-rotating ring drivers. Could you send me a message if you use these things and could answer a few questions from us? Thankyou, John Wobus Syracuse University
fedor@NISC.NYSER.NET (Mark Fedor) (01/14/88)
I believe Cornell U. has a couple counter-rotating "fingers" off their main ring. Sounds confusing, eh? call scott brim, swb@devvax.tn.cornell.edu Sorry scott.... :^) Mark P.S. Cornell is Pronet-10
swb@TCGOULD.TN.CORNELL.EDU (Scott Brim) (01/14/88)
Yes, we have at least one counter-rotating ring which works fine. I'm not directly responsible for it, and I had forwarded the question to the folks who are so they could respond. I can say that I don't recall any problems with any of our rings, counter-rotating or not, for at least a year -- ever since we got rid of the last of our passive wire centers, installed satellite wire centers, and brought the firmware in our fiber drivers up to level. However, it may be that the support is so good that I just haven't heard about the problems. Scott
kwe@BU-IT.BU.EDU (01/14/88)
One comment on CRR from my experience with the Pronet-80 product: You have to physically watch the interface boxes to make sure that the rings are both operational, otherwise you might lose that wonderful back-up redundancy. There is some good network management capability buried in those boxes that Proteon must bring out in future for us to make the best use of this kind of physical level fault tolerance. For now you have to watch the lights. Kent England, Boston University