| 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 | 
    I need connect ethernet to FDDI rings in single mode fiber.
    
    I found two products :
    
    	- DEC bridge 518,
    	- DEC bridge 900 MX.
    
    I have two questions about DECbridge for FDDI :
    
    	1/ Is DEC bridge 518 end of live ?
    	   When will this product stop in manufacturing ?
    	   How many time does this product stay in maintenance ?
    
    	2/ I look at the performance of the two products :
    	   			DECbridge500	DECbridge900MX
    	   Filtering rate	460 000		 14 880
    	   Forwarding rate	 14 880		460 000
    
    	   The two datas are reversed. Is it true or false ? What are the
    good datas ?
    
    Regards, bernard GAUDIEZ @LYO
    
| T.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 1475.1 | 56821::STEFANI | Have the # for the Mars Observer? | Mon Oct 17 1994 10:22 | 21 | |
|     >>I have two questions about DECbridge for FDDI :
    >>
    >>	1/ Is DEC bridge 518 end of live ?
    >>	   When will this product stop in manufacturing ?
    >>	   How many time does this product stay in maintenance ?
    
    All excellent questions.  I suggest you speak with Karl Pieper
    (DELNI::PIEPER) regarding the end of life issues.
    
    >>	2/ I look at the performance of the two products :
    >>	   			DECbridge500	DECbridge900MX
    >>	   Filtering rate	460 000		 14 880
    >>	   Forwarding rate	 14 880		460 000
    >>
    >>	   The two datas are reversed. Is it true or false ? What are the
    >>good datas ?
    
    I don't see how this can be correct.  Karl can probably point you to an
    engineer who can give you the correct data.
    
       - Larry
 | |||||
| 1475.2 | Data for DECswitch 900EF (DECbridge 900MX) | 56821::BATTERSBY | Mon Oct 17 1994 15:10 | 10 | |
|     Bernard, the two sets of numbers filtering and forwarding
    for the DECbridge 900MX (now called DECswitch 900EF) are:
    
    The filtering rates are:
    14,880 packets per sec for each Ethernet port.
    460,000 packets per sec on the FDDI port.
    
    The forwarding rate is an aggregate 60,000 pps.
    
    Bob
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