Re: Access to Mainframes via Putty?
- From: chrismason@xxxxxxxxxxxx (Chris Mason)
- Date: 3 Feb 2006 09:26:31 -0800
Jay,
Shmuel is right - he often is - well, half-right, but I'm not deducting any
points for not mentioning VM. In other words the ICA is supported only under
VM and VSE VTAM .
From your post I used "AWSICA" as a Google search word and confirmed theabove in one or two "hits". I vaguely remembered this also at the time I
mentioned the ICA but, since the original poster didn't specify MVS-z/OS, I
didn't bother to mention anything.
One of the "hits" was http://www.hammocktree.org/tech/P390QRef.PDF entitled
"IBM PC Server System/390 Quick Product Guide" where we find the following:
"OS/390 (MVS): OS/390 does not support the ICA so AWSICA cannot be used and
BSC line support is not provided. SDLC support for OS/390 is provided by the
WAC (Wide Area Connector) and MultiPort Model 2 adapters by using the
WAN3172 device manager, emulating a VTAM XCA node ("3172 SDLC Gateway"). The
WAC can be configured for either RS232, V.35, or X.21 interfaces. (RS232
typically runs up to 19.2Kbps, V.35 is used for 56Kbps and higher, with X.21
being used for very high speed, such as T1 connections.) Each WAC has one
line interface and one additional interface can be added (interface types
can be mixed). There is a maximum of 2 WAC adapters per system since the PB0
only has two ISA slots. The MultiPort model 2 provides up to 8 RS-232 ports
per adapter, with a maximum of two adapters. Only ISA bus versions of the
WAC and MultiPort model
2 are supported. CHECK: IS WAN3172 plus Portmaster 2 supported on OS/390?"
It may be something like this you recalled. Clearly there's some sort of
"smoke and mirrors" here where VTAM thinks it's dealing with a LAN -
although the interface is the "Link Services Architecture" (LSA) interface -
while the adapter is driving SDLC.
But this sub-issue got off the ground because we were talking about the 3767
and there's a snag - not that anyone really should care since we are all
well away from the original topic. The snag is that, in addition to using LU
type 1 protocols, the 3767 also uses PU type 1 protocols. PUTYPE=1 is not an
option with the XCA major node PU statement.
Chris Mason
----- Original Message -----
From: "Jay Maynard" <jmaynard@xxxxxxxxxxxx>
Newsgroups: bit.listserv.ibm-main
To: <IBM-MAIN@xxxxxxxxxxx>
Sent: Friday, 03 February, 2006 4:42 PM
Subject: Re: Access to Mainframes via Putty?
On Fri, Feb 03, 2006 at 09:11:12AM -0500, Shmuel Metz (Seymour J.) wrote:
In <007e01c62863$5732acd0$0201a8c0@mason>, on 02/03/2006
at 02:44 AM, Chris Mason <chrismason@xxxxxxxxxxxx> said:
Even so I vaguely remember "integrated communicationsMy recollection is that those were supported only in VSE.
adapters" which supported SDLC circuits.
ISTR a chapter in the P/390 redbook o how to use the AWSICA emulation with
OS/390 VTAM.
--
Jay Maynard, K5ZC http://www.conmicro.cx
http://jmaynard.livejournal.com http://www.tronguy.net
http://www.hercules-390.org (Yes, that's me!)
Buy Hercules stuff at http://www.cafepress.com/hercules-390
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