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Conference 7.286::fddi

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

283.0. "Single ring of FDDI" by UTROP2::JONG_ARIE () Thu Jun 13 1991 03:29

    I am participate in a FDDI-project on a campus.
    They will a single ring for FDDI with several DAC.
    
    I can't find in the documentation that this is a valid
    configuration or if it is possible. 
    They wil have only the primary ring of FDDI.
    What wil happen when the fiber brokes. Will the closest
    DAC than wrap the fiber or stays it open ??????.
    
    What are the consequeces about this configuration and will
    it work oke.
    
    I hope there is someone who can help me
    
    Arie de Jong

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283.1 KONING::KONING Eesti vabaks! Thu Jun 13 1991 12:15 12

T.R	Title	User	Personal Name	Date	Lines
283.1		KONING::KONING	Eesti vabaks!	`Thu Jun 13 1991 12:15`	12
	It is IMPOSSIBLE to have only a primary ring. When you wire up an FDDI network, you automatically get a dual ring. (One exception: when you build just a tree.) In other words, as soon as you make any A-B connections you will have a dual ring. Could you describe a bit more what's being proposed? Perhaps it's some simple misunderstanding. You might also get a copy of the FDDI Primer; it sounds like it would straighten out some confusion here. paul

It is IMPOSSIBLE  to have only a primary ring.  When you wire up an FDDI
network, you automatically get a dual ring.  (One exception: when you build
just a tree.)  In other words, as soon as you make any A-B connections
you will have a dual ring.

Could you describe a bit more what's being proposed?  Perhaps it's some
simple misunderstanding.  

You might also get a copy of the FDDI Primer; it sounds like it would
straighten out some confusion here.

	paul