Title: | FDDI - The Next Generation |
Moderator: | NETCAD::STEFANI |
Created: | Thu Apr 27 1989 |
Last Modified: | Thu Jun 05 1997 |
Last Successful Update: | Fri Jun 06 1997 |
Number of topics: | 2259 |
Total number of notes: | 8590 |
"The FDDI has also been designed for future speed upgrades. It is contrasted with other standards that have inherent limitations in their protocols or access mechanisms. By using the FDDI standard, the limitations that severely restrict speed upgrades should be decreased or eliminated." - from an article in "Computer Design" by Sunil P. Joshi, 1985 Unfortunately, this claim is not substantiated in the article (and it is an old article, anyway). Is there any truth to it? Is FDDI especially well-suited for "speed upgrades"? Is anyone working on it? Presumably, the advantage of doing a speed upgrade on a LAN interconnect is that the engineering investment would be less than if we started a new interconnect from scratch. There is also the appealing prospect that "everyone", from engineering to the customer, doesn't have to learn the idiosyncrasies of a new interconnect.
T.R | Title | User | Personal Name | Date | Lines |
---|---|---|---|---|---|
97.1 | KONING::KONING | NI1D @FN42eq | Tue Jul 31 1990 18:25 | 14 | |
A 98% accurate answer would be "that's nonsense". However, it is true that in many places the available fiber bandwidth is greater than that used by FDDI. This is true for short runs of multimode fiber, and in certain cases (I'm not sure of the details) for single mode fiber. So when a hypothetical faster future LAN comes along, you might be able to re-use SOME of your fiber cable. You won't be able to re-use long multi-mode runs, though, and obviously none of the active components will work. So, for all practical purposes, the article is wrong. paul |