DKRUGER@vm.ucs.UAlberta.CA (Dwight Kruger) (10/24/89)
I have a large investment in IBM 3274 and 3174 controllers servicing three IBM
mainframes. Attached to these controllers are approximately 1000 3270
terminals via Network Systems HYPERbus terminal network. Network Systems
has informed us that they have frozen this product, we are therefore looking
for alternatives to replace HYPERbus.
In order to maintain our investment in 3274 and 3174 controllers and 3270
terminals, we are looking for alternatives which allow the controllers and
terminals to be attached to either ethernet or token ring. In this scheme,
as with the existing HYPERbus terninal network, any terminal can dial all of
the IBM hosts.
+---------+ +---------+ +---------+
| IBM host| | IBM host| | IBM host|
+----+----+ +----+----+ +----+----+
+----------+ | | |
| user | +----+----+ +----+----+ +----+----+
| 3270 | | 3174 | | 3174 | | 3174 |
| terminal | |controllr| |controllr| |controllr|
+----+-----+ +----+----+ +----+----+ +----+----+
| | | |
+----+-----+ +----+----+ +----+----+ +----+----+
| magic box| |magic box| |magic box| |magic box|
+----+-----+ +----+----+ +----+----+ +----+----+
| | | |
=====+===========================+============+============+======
ethernet or token-ring (was HYPERbus)
Using this scheme, users on 3270 terminals can dial any IBM host. I am aware
of IBM's token-ring card for their 3174 controller, however 3270 terminals
can not attach to token-ring. Also, a remote 3174-3R controller forces us to
hard wire the 3270 terminals to it preventing the user from connecting to
multiple hosts. We do not and cannot use VM passthrough.
Does anyone make a product for either ethernet or token-ring (shown as the
magic boxes in the above diagram) which would allow our 3270 terminals to
dial and connect to one of a family of IBM hosts via 3174 and 3274 controllers.
HYPERbus did this for us.