| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 7044.1 | Comments | EDSCLU::GARROD | IBM Interconnect Engineering | Wed Mar 19 1997 09:34 | 8 |
| Yes they can still use the DG even with APPN on the IBM host/NCP.
The NCP/VTAM supports both APPN and subarea node routing. The only
problem is that 3270 terminal emulators in the APPN portion of the
network will not be able to loh onto 3270 Application services/MEP
services on the VAX if they are hidden behind an APPN routing node.
At least I think that is the case.
Dave
|
| 7044.2 | | FREE::CAMBRIA | Still worrying about deck chairs | Wed Mar 19 1997 10:06 | 44 |
| <<< Note 7044.0 by MANM01::JOELJOSOL >>>
> -< APPN: can I still sell DG CT? >-
>
> I have a customer who likes to connect to VAX/VMS from the Host but
> at the same time IBM is proposing an upgrade path for their Host.
> The offer is to implement APPN/TCP/IP over the net with remote
> PC users from the branches to use routers with dLS/Rs.
What is dLS/Rs?
Do they mean DLSw? (Data Link Switching, sdlc frames tunneled onto
a TCP connection?)
Do they mean DLU/R (Dependent LU Requester)?
If it isn't one of my guesses, you must tell us exactly what dLS/Rs is.
Is it an IBM product? 3rd party to VMS or IBM?
> According
> to the IBM guys, all the customer needs from us is TCP/IP on the
> VAX.
If this is indeed the case, APPN didn't need to be brought up at all
in the context of the VAX. All TCP/IP w/out any SNA related software
on the VAX takes SNA (APPN or otherwise) out of the equation.
> Selling JUST TCP/IP would not be that exciting. But, is there a
> way to put in the DG CT in there given the scenario the customer
> buys the APPN implementation/upgrade? Or, should I sell the
> customer a VAX/VMS based APPN solution?
Either would work. Do we _have_ a VAX/VMS APPN solution to sell?
The DG will work provided that the VTAM node is configured to allow
subarea nodes to exist in their APPN network. If they want to go pure
APPN (political reason perhaps), the DG will not work. (Note: It is
"normal" for APPN networks to have a few subarea nodes (which the DG is)
scattered about. It works just fine. In fact, it _is_ the normal case
still to this day!)
They also MUST have a CTCA channel connection to physically connect to a DG.
MikeC
|
| 7044.3 | | FREE::CAMBRIA | Still worrying about deck chairs | Wed Mar 19 1997 10:11 | 18 |
| > <<< Note 7044.1 by EDSCLU::GARROD "IBM Interconnect Engineering" >>>
> -< Comments >-
>
> Yes they can still use the DG even with APPN on the IBM host/NCP.
> The NCP/VTAM supports both APPN and subarea node routing. The only
> problem is that 3270 terminal emulators in the APPN portion of the
> network will not be able to loh onto 3270 Application services/MEP
> services on the VAX if they are hidden behind an APPN routing node.
> At least I think that is the case.
They will have no problem connecting via a Domain Gateway MEP as long
as (at least one) VTAM knows about the 3270(s).
If they can't logon to us, they can't logon to ANYTHING in the APPN
network (and are thus useless to the network.)
MikeC
|
| 7044.4 | Channel not needed with Domain Gateway-ST | EDSCLU::GARROD | IBM Interconnect Engineering | Wed Mar 19 1997 11:26 | 7 |
| Ok it's better than I thought, thanks for the correction. 3270s in the
APPN network can log onto us.
One correction though. If you use a Domain Gateway-ST you don't need
a channel datalink, you can SDLC attach to the FEP.
Dave
|