| 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 |
<<< SPEZKO::NOTESPUBLIC:[NOTES$LIBRARY]CLUSTER.NOTE;2 >>>
-< + VAXclusters + >-
================================================================================
Note 3998.0 DECbridge 900MX & 1 TC FDDI SAS connect? No replies
STRWRS::KOCH_P "It never hurts to ask..." 10 lines 1-MAR-1994 07:24
--------------------------------------------------------------------------------
There's a lot of FDDI related configs in this file so I thought I would
ask.
We currently sell the DEFTA-FA which is a Turbochannel SAS FDDI. I want
to connect this system DIRECTLY to a DECBridge 900MX (A/B port). Is
this legal? I don't want the expense of a concentrator with only 1
system to connect.
Or is the DEFTA-DA (FDDI DAS) SUPPORTED? ORDERABLE?
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 1253.1 | KONING::KONING | Paul Koning, B-16504 | Tue Mar 01 1994 11:49 | 6 | |
Yes, you can connect a SAS to a DAS, provided the other port of the DAS is not connected to a concentrator. This makes sense for building a configuration analogous to the two-station SAS to SAS setup. It's not a good idea for configurations of any significant size: those should be built with concentrators. paul | |||||
| 1253.2 | Similar situation... | LFOIS1::MOUSSU | so unusuaL terM | Tue Mar 29 1994 13:44 | 24 |
I've got a similar config where we would like to share an
application server bandwith between 4 to 6 Ethernet supporting
client PCs.
The customer had previously asked us 4 Ethernet adapters but we
wish to propose the following alternative:
+---------+
| Server |
| |
+----+----+
| FDDI
|
+-------+----------+
| Bridge 900MX |
| |
+-+--+--+--+--+--+-+
| | | |
Ethernet
a) In such a situation what are the valid connection combinations: SAS, DAS, FDX
b) in case we add a second server, I guess a concentrator-less config is not
valid (one server / port A, other / port B). Correct ?
| |||||
| 1253.3 | KONING::KONING | Paul Koning, B-16504 | Tue Mar 29 1994 18:05 | 4 | |
SAS is fine, connect it to the B port of the 900. I wouldn't bother with turning on full-duplex, since you're limited by the Ethernet bandwidth (60 Mb/s). paul | |||||
| 1253.4 | Thanks | LFOIS1::MOUSSU | so unusuaL terM | Wed Mar 30 1994 12:48 | 1 |