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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

857.0. "Alpha TURBOchannel speeds?" by PHDVAX::RICCIO (Help me Mr. Wizard!) Thu Feb 11 1993 22:02

    
    
    
       Could someone please give me the throughput numbers for the
    FDDI interface on the TURBOchannels on both the AXP 3000-400 &
    500?
    
       We are in a very competitive situation with SUN, IBM & HP
    and this can be a real differentiater for us, especially 
    against HP.
    
       Also if anyone has the competitive numbers, I'd really
    appreciate it.
    
    
    
                                        thanks, Phil...

T.R	Title	User	Personal Name	Date	Lines
857.1	the performance is good	QUIVER::WASHABAUGH	Born to be Mild	`Fri Feb 12 1993 12:40`	24
	We have seen over 100 Mbits of traffic in full-duplex mode running the bricks demo. Here are some lines from the sales update: BENEFITS o Approaches full FDDI performance of 100Mbps at the TCP/IP protocol layer with DEC OSF/1 AXP and TCP/IP for OpenVMS AXP .......................................... PERFORMANCE The performance of the DEC FDDIcontroller/TURBOchannel is superior to the competition. A sustained throughput of 96Mbps performance has been demonstrated running a DEC3000 AXP with DEC OSF/1 AXP and TCP/IP. Similar performance has been tested with TCP/IP for OpenVMS AXP. It was only a year ago that vendors were demonstrating 30-50Mbps as the best performance in the market. FDDI performance of greater than 100Mbps has been shown in point-to-point configurations using full duplex, example Gigaswitch.
857.2	What controller performed so well?	BALTMD::BLASINGAME	Craig @PHH,ADEG,DTN-328-3038	`Fri Feb 12 1993 15:28`	9
	Re: .1 What Sales Update is the quoted lines from; I have looked thru my files and VTX to no avail? Is the referenced device a FDDIcontroller700 or some newer (yet unreleased) TURBOchannel device? Thanks
857.3		KONING::KONING	Paul Koning, A-13683	`Fri Feb 12 1993 16:00`	3
	That's for the DEFTA, the followon to the -700 (DEFZA). paul
857.4	Competitive info.???	PHDVAX::RICCIO	Help me Mr. Wizard!	`Tue Feb 16 1993 21:07`	4
	Any competitive information?
857.5	What competitor?	QUIVER::WASHABAUGH	Born to be Mild	`Wed Feb 17 1993 20:05`	14
	I know of no competitor that builds FDDI turbochannel adapters (I suppose you could tell the customer that our adapter is so fast that noone else dared get into the market, but I don't think anyone would sucker for that one!). Unless you compare two adapters, in the same systems with the same protocol stacks, its hard to say which adapter is "faster" (latency is another issue). Some people like to compare Network Throughput/MIP, which can be useful when comparing machines of different class. Much care must be taken to avoid comparing apples and oranges. doug
857.6	Thanks!	PHDVAX::RICCIO	Help me Mr. Wizard!	`Thu Feb 18 1993 10:56`	1