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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

829.0. "Unsupport for FDDI?" by KERNEL::HOGGAND () Tue Jan 12 1993 09:45

    Hi, 
    
    I tried looking throught the previous notes, but could not find a
    similar question.
    
    What VAXen do NOT support FDDI. From what I've read the two controllers
    are XMI (6000 and 9000 series) and Turbochannel (all workstations bar
    the 4000 VLC). This leaves such machines such as the 7000,8000,10000
    series as well as MVaxII's V2000 etc....
    
    Can anyone help?
    
    Dave.
    41950

T.R	Title	User	Personal Name	Date	Lines
829.1		NETRIX::thomas	The Code Warrior	`Tue Jan 12 1993 11:37`	2
	The 7000/10000 can take DEMFA's off the XMI. You should contact product management about FDDI Q-bus futures.
829.2		STAR::PARRIS	Any port in a Stor/ME:CI,SCSI,FDDI,DSSI	`Tue Jan 12 1993 15:47`	6
	The VS4000-60 doesn't support FDDI either (see 417.2). 8000-series machines (VAXBI bus) have no FDDI adapter available. These and all of the small machines (MicroVAX II, VAXstation 2000, etc.) can still get onto FDDI through a 10/100 bridge, though.
829.3	My 2Cents	PEACHS::SCHULTZ	Blessed are the Cheesemakers !!!	`Thu Jan 28 1993 18:22`	6
	DEMFA is the XMI FDDI controller. DEFZA is the TurboChannel Adapter. DEFEA is the EISA controller for PC's. The QBUS controller??? Wait and see !!! MTS
829.4	Adapter naming convention?	JEREMY::MAURENE	Maurene Fritz, Jerusalem	`Sun Jan 31 1993 02:02`	8
	.3>DEMFA is the XMI FDDI controller. DEFZA is the TurboChannel Adapter. .3>DEFEA is the EISA controller for PC's. The QBUS controller??? Wait and .3>see !!! I've never understood this naming convention. Can somebody explain? Thanks, Maurene
829.5	Option names don't stand for much	MUDDY::WATERS		`Mon Feb 01 1993 08:15`	21
	> .3>DEMFA is the XMI FDDI controller. DEFZA is the TurboChannel Adapter. > .3>DEFEA is the EISA controller for PC's. The QBUS controller??? Wait and The naming convention means little if anything. Every hardware option gets a 5-letter designator from the company's Chief Engineer. When LANs were introduced, things started out well. DEUNA "DEC?? Ethernet Unibus Adapter" DELQA "DEC Ethernet L?? Q-Bus Adapter" So LAN options begin with "DE". Now comes FDDI (prefix "DEF"): DEFZA "DEC E'net FDDI Z?? Adapter" (TURBOchannel) DEFTA "DEC E'net FDDI TURBOchannel Adapter" DEFCN "DEC E'net FDDI Concentrator" DEFEB "DEC E'net FDDI Ethernet Bridge" (kinda tubular!) Here are some GIGAswitch option names (prefix "DEFG"): DEFGA "DEC E'net FDDI GIGAswitch A??" DEFGL "DEC E'net FDDI GIGAswitch linecard"
829.6	Disinformation+	JEREMY::MAURENE	Maurene Fritz, Jerusalem	`Tue Feb 02 1993 04:43`	20
	.5> So LAN options begin with "DE". Now comes FDDI (prefix "DEF"): .5> .5> DEFZA "DEC E'net FDDI Z?? Adapter" (TURBOchannel) .5> DEFTA "DEC E'net FDDI TURBOchannel Adapter" .5> DEFCN "DEC E'net FDDI Concentrator" .5> DEFEB "DEC E'net FDDI Ethernet Bridge" (kinda tubular!) .5> Well, here's some disinformation: in "DEF", the E does not have anything to do with Ethernet. The name DEMFA always confuses me, too: it has the "F" (for FDDI) after the "M" (for XMI, I guess). .5> Here are some GIGAswitch option names (prefix "DEFG"): .5> .5> DEFGA "DEC E'net FDDI GIGAswitch A??" .5> DEFGL "DEC E'net FDDI GIGAswitch linecard" We're getting to a situation where there is only 1 letter free to distinguish option names...maybe it's time for a new naming convention. Maurene
829.7		QUIVER::STEFANI	I've got a pocket full of Kryptonite	`Tue Feb 02 1993 08:24`	9
	[regarding option names] The "DE" (to the best of my knowledge) refers to "Digital Equipment" and not "Digital Ethernet". Aside from being used internally and for product numbers, filenames, and the like, the five-letter designator doesn't really stand for much (as .5 mentioned). - Larry Stefani DEFEA (er, "DEC FDDIcontroller/EISA") Project Engineering
829.8		KONING::KONING	Paul Koning, A-13683	`Tue Feb 02 1993 13:51`	9
	I think the most accurate answer is: Option identifiers are pulled out of thin air. Any patterns you see are there only because they happened to be floating around in that thin air at the time the picking was done. There is NO formal system of any kind behind the assignments. paul
829.9	a little familiness	DELNI::GOLDSTEIN	I am not making this up	`Mon Feb 08 1993 17:02`	14
	Just to note the traditions, The first letter of a product name generally indicates family. The "D" is used by network products; I take it as coming from "datacomm". Thus we had DZ-11s long before Ethernet. Disks have "R" for "radial" or "rotating", tapes have "T", CPU's "K" (komputer?), etc. Of course, we can make exceptions. We may, for instance, miss the recently-retired TK-11B, which is not a tape. fred in case you don't remember, that's "Turkey, 11 pound minimum, self-basting"!