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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

1902.0. "FDDI to ATM" by HGOVC::SOONDERAM () Wed Dec 13 1995 04:15

    Re: GIGAswitch FDDI/ATM
    
    Questions:
    ---------
    
    1.	In a marketing pamphlet, a Router is used to connect FDDI to an ATM
    Switch. Where can I find more information on this Router?
    
    2.  Also, apparently we have an ATM Interface card for the
    GIGAswitch/FDDI to connect a FDDI LAN to an ATM WAN. Where can I find
    more information on this Interface card?
    
    3.  Do we have a note_conference on the subject of ATM (Asynchronous
    Transfer Mode) products.
    
    4.  Do we have products that support FDDI LAN Emulation over ATM?

T.R	Title	User	Personal Name	Date	Lines
1902.1	NOTED::ATM is notes conference	NETCAD::BATTERSBY		`Wed Dec 13 1995 12:38`	3
	For a notes conference, try NOTED::ATM Bob
1902.2		NPSS::MDLYONS	Michael D. Lyons DTN 226-6943	`Fri Dec 15 1995 11:43`	9
	> 2. Also, apparently we have an ATM Interface card for the > GIGAswitch/FDDI to connect a FDDI LAN to an ATM WAN. Where can I find > more information on this Interface card? Look in the GIGAswitch/FDDI System AGL-2 Manager's Reference Guide. Pointers are located in the SCHOOL::GIGASWITCH notes conference, note 412.1
1902.3		STRWRS::KOCH_P	It never hurts to ask...	`Fri Dec 15 1995 12:36`	29
	re: .4 It looks unlikely that an FDDI LAN emulation will be developed. In the April 95 ATM Forum, a proposal to create one was not accepted. However, it is possible to do FDDI client to ATM client communication using the Ethernet LAN emulation spec since we know both sides of the equation. We know how manipulate FDDI frames into Ethernet frames (and vice-versa) and it has been defined how to manipulate ATM frames into Ethernet frames (and vice versa). So if you build a device with all three technologies on it, the only thing FDDI sees are Ethernet frames and the only thing ATM sees are Ethernet frames and the world is at peace with itself. This also eliminates the problem of getting operating system providers to add yet another ATM LAN layer to their operating system. So, in my opinion, the fact we didn't get a FDDI LAN emulation defined was the best result. We don't have to commiserate about this or that operating system not having FDDI ATM LAN emulation support. There is a project within Digital which is working on this. It's supposed to be in the PID. I suggest contacting Pete SCHOOL::DUNBECK about the project. I've successfully used this pitch to disarm customers and consultants about not making the right decision about ATM given the fact that they need a high speed backbone now, ATM really isn't ready, but won't I lose ALL my FDDI investment whenever ATM is ready because there is no FDDI ATM LAN emulation spec? I usually talk about this for about 10 minutes and then we don't talk ATM anymore. We talk about implementing a network and solving the business problem the customer has.