Doesn't z/OS work with a real 3270 as a console? If so, then it's the ICC that's doing something nonstandard with the 3270 setting.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [[email protected]] on behalf of Tony Thigpen [[email protected]] Sent: Tuesday, July 21, 2020 9:18 AM To: [email protected] Subject: Re: Multi-channel OSA-ICC routing and TCP port behavior Brian, In regards to the '3270' or 'console' setting, that is very specific to z/OS. On z/VSE and z/VM the consoles are set to '3270' in the ICC configuration. Setting the value to 'console' for them will lead to problems. Yet, on z/OS, you must set the field to 'console' handle to some quirk that z/OS has as it relates to consoles. So, back to your question: "Why?", because z/OS again used something non-standard in the operating system. (As someone that works across all three of the operating systems, I see this often. z/OS plays by it's own house rules, not the rules printed inside the box top.) Tony Thigpen Brian Westerman wrote on 7/21/20 4:44 AM: > I completely disagree. Why would IBM have two settings in the configuration > screen for them, one as a 3270 and the other as a console, if they only > wanted you to be able to use consoles? > > Brian > > On Mon, 20 Jul 2020 11:25:54 +0000, Parwez Hamid <[email protected]> > wrote: > >> Agreed. The full name is OSA-Express Integrated Console Controller and was >> primarly meant to provide Console Support to IPL OSes. Overtime, its use has >> evolved but the basic concept remains. >> >> Regards >> >> Parwez Hamid >> >> ________________________________ >> From: IBM Mainframe Discussion List <[email protected]> on behalf of >> R.S. <[email protected]> >> Sent: 20 July 2020 12:17 >> To: [email protected] <[email protected]> >> Subject: Re: Multi-channel OSA-ICC routing and TCP port behavior >> >> Excuse me, but IMHO OSA-ICC is just way to get rid off old equipment >> like 3174L. It is NOT replacement, it is only for local (called non-SNA) >> terminals, printers and ...CONSOLES. Consoles are the most important. Of >> course 3172, 3274, and other controllers were not the goal. >> >> IBM went looong way from 3174s to to ICC. There were 2074 (quite >> expensive), VTAM consoles (not very usable for IPL), older SYSCON >> (Operating System Messages on HMC) and the latest 3270-like SYSG aka >> PCOMM-like icon in HMC. SYSG is AFAIK z/VM nomenclature. >> >> >> BTW, Note, nomenclaure for "HMC-like" consoles: >> 1. Operating System Messages >> z/VM: SYSC >> z/OS: SYSCON >> >> 2. HMC Integrated 3270 console (is it proper name?) >> z/VM: SYSG >> z/OS: HMCS >> >> I don't know about other OSes. >> >> -- >> Radoslaw Skorupka >> Lodz, Poland >> >> >> >> >> >> >> W dniu 19.07.2020 o 15:17, Tony Thigpen pisze: >>> Christian, >>> I was dismayed too when I first discovered this limitation. The OSA-C >>> was originally intended to eliminate the local 3174 requirement. It >>> was not really designed to replace the 3172-003, which is what many >>> are using it for today. >>> >>> And, you also need to look back at the OSA-C's roots which was the >>> 3274 emulation in the P370, P390 and the MP3000. >>> >>> Tony Thigpen >>> >>> Christian Svensson wrote on 7/19/20 8:40 AM: >>>> Thanks for the input folks. >>>> >>>> Brian: I have it working just fine, the setup was easy as you said - the >>>> reason I started this thread was because I couldn't understand why the >>>> limitations on the TCP port number and the philosophy behind the >>>> routing. >>>> >>>> It seems pretty weird to me that IBM implemented ICC this way, but hey - >>>> I'm just a stranger on the internet :-) >>>> >>>> >>>> Regards, >>>> >>>> On Sun, Jul 19, 2020, 06:52 Brian Westerman >>>> <[email protected]> >>>> wrote: >>>> >>>>> You can set up some of the ports to be local VTAM terminals, then >>>>> you can >>>>> use VISTA (or any 3270 emulator) to connect into the ICC port 3270, >>>>> and use >>>>> the LUNAME of the 3270 you defined as a local 3270 terminal. Since >>>>> you can >>>>> have over 100 terminals per port, making them all os consoles is a >>>>> waste, >>>>> so having a bunch of them as local 3270's that you can give to your >>>>> carious >>>>> LPARs (and use EE to connect to the LPARs they are not connected >>>>> to), is a >>>>> great way to use them. >>>>> >>>>> I like to make the first 16 to 32 devices OS consoles and the rest >>>>> of them >>>>> local 3270s. >>>>> >>>>> So you are using TCP to get to them inside the ICC, but they are >>>>> technically local 3270 terminals. 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