Let me get all the questions answered in one email. What are the customer's plans to update from OS/390 V1R3? None they upgrade to OS/390 1.3 in the mid 90's and had plans to be off the Mainframe in a couple of years. There are no plans to upgrade OS/390. Still trying to get off the mainframe.
The current flow of the the connection is as follows. The terminals and printers connected to CICS/ESA 4.1 At the remote site they are attached to a 3174. The 3174 is connected to a DLSw router that is connected to the DLSw router at the Mainframe location; which is connected to the 3745. There is no SNA server. The OSA card has a Ethernet port and a Token ring port. It predates ICC. Michael Saraco Systems Consultant 303-838-3374 x115 Cell 507-525-0530 From: Chris Mason <chrisma...@belgacom.net> To: IBM-MAIN@bama.ua.edu Date: 04/15/2010 05:25 AM Subject: Re: SNA over TCPIP OS/390 1.3 Sent by: IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> Michael > and the OSA card has only one port OSA card that supports Ethernet and Token Ring. Won't that be Ethernet ***or*** Token Ring? Presumably your OSA feature port has an appearance similar to that of the lower right diagram in Figure 54. OSA-Express Connections and LEDs in the Open Systems Adapter-Express Customer’s Guide and Reference manual. >...> We have the IP TN3270 already on the OSA card ... This would imply the OSA feature port is configured as "channel type" OSC which means that it must be dedicated to the "Integrated Console Controller" function. What you might do in order to have both TN3270 TCP over IP traffic - and any other IP traffic - as well as SNA traffic running on the OSA feature port is to configure your OSA feature port as channel type OSE. That way IP and SNA traffic can share the port. You will need to implement the TN3270 server function within the Communication Server IP component in order to replace having the OSA feature perform the TN3270 server role. As for the 3745 with its 6 presumably LAN-attached SNA nodes where the LAN is supported with DLSw. Those connections are quite easy to convert to being run on the OSA feature. You just replace the NCP major node definition with an XCA major node definition. You can define the same target MAC address as used in the NCP in the OSA feature. The switched minor node definitions in the switched major node do not need to change. Oh - and you can throw away the PATH tables relating to the NCP which, if they are your last PATH statements, will be an excuse for celebration! > We are trying to get rid of the 3745 ... This I understand. > ... and just directly into the DLSw router. This I do not! You still haven't explained what "SNA Gateway Server" is. You still haven't been clear about your partner nodes but I can guess that they are some sort of workstations themselves supporting SNA software, that both your 3745 now - and OSA feature port in the future - and workstations connect to a LAN and that the LAN has a pretend segment in the middle, as it were, which uses DLSW devices in order to run over an/the IP network. Note, I expect you are having to change from a Token Ring LAN to an Ethernet LAN for SNA connections since 3745 supports only a Token Ring LAN for SNA. Since you are using DLSw this is not a problem. You need only to be able to run Ethernet between the OSA feature port and the DLSw device. In other words you need to switch from using a Token Ring plug on your DLSw device to using an Ethernet plug. Note I am assuming you access the OSA feature port as a TN3270 server using the Ethernet plug. Chris Mason On Wed, 14 Apr 2010 14:36:35 -0500, Michael Saraco <michael.sar...@baer- CONSULTING.COM> wrote: >It is OS/390 1.3 and the OSA card has only one port OSA card that supports >Ethernet and Token Ring. > >We have a 3745 we want to get rid of. It has a total of 6 printers and >terminals that are still SNA. We have DLSw router in front of the 3745. We >are trying to get rid of the 3745 and just directly into the DLSw router. > > > >Michael Saraco >Systems Consultant >303-838-3374 x115 >Cell 507-525-0530 > > > >From: Chris Mason <chrisma...@belgacom.net> >To: IBM-MAIN@bama.ua.edu >Date: 04/14/2010 01:30 PM >Subject: Re: SNA over TCPIP OS/390 1.3 >Sent by: IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> > > > >Michael > >If the partner node supports SNA, typically 802.2 LAN although SDLC is >possible, then a DLSw router at either end of the communication path is >all >you need. You don't need any more advice here - unless it's about the >basics >of defining a logical 3172 to VTAM - and possibly the SNA software in your > >partner node with which I anyhow could probably manage to help you. > >This has nothing to do with TN3270 which is another way to handle "SNA >over >IP", specifically a TN3270 TCP commotion concatenated to an SNA session >both supporting the 3270 data steam. > >The OS/390 1.3 is a bit of a limitation. I think this predates Enterprise >Extender as an option but probably falls into the era of AnyNet SNA over >IP. >Here it is important that your partner node also supports AnyNet SNA over >IP. > >You'd better post again explaining what you *really* want to do and be >clear >about what your partner node is - and at what level of software - and the >URL where the documentation can be found - or we'll all have to have a >conversation over what its capabilities are. > >You may also need to be clear over what you have done to your OSA feature >since I can't quite make out how you have configured it. > >To which platform does "SNA Gateway Server" refer. I hope it's not also >something antique that belongs on the IBM platform! > >Something occurs to me: you say OS/390 1.3 but do you mean z/OS 1.3, >which is rather less lost in the mists of time. If so we'd need to >re-evaluate >the possibilities for Enterprise Extender. > >Chris Mason > >On Wed, 14 Apr 2010 13:04:45 -0500, Michael Saraco <michael.sar...@baer- >CONSULTING.COM> wrote: > >>We have a need to SNA over TCPIP on an OS/390 1.3. The OS is running on a >>MP2003 with an OSA card that supports Ethernet and Token Ring only on >port >>and the Token Ring connection. It looks like it can be done. We have the >IP >>TN3270 already on the OSA card can the SNA still go over the same port? >Do >I >>have to have a SNA Gateway Server or just DLSW router? >>Any help is greatly appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
