Newsgroups: bit.listserv.ibmtcp-l
Date:         Sun, 4 Oct 1992 23:13:40 EDT
From:         Bill Rubin <RUBIN@YKTVMV.BITNET>
Subject:      Re: Cum PTF tape for HTCP221

First, let me apologize for not having posted this sooner.  I meant to,
but I was trying to get an official description of 2.2.1. The bottom line
is that TCP/IP for MVS V2R2.1 shipped a week ago Friday (I hope, if anyone
has received it, please let me know) and will be the new base for the V2R2
release.  It is a complete re-install so if you haven't done anything with
V2R2 yet, please don't.  Due to circumstances beyond our control (really,
please don't ask), there will be no PTFs built for V2R2, all reported bugs
will be fixed on the 2.2.1 base.  Many fixes, in fact, are already in the
new release, as well as all of the build problems that were reported against
V2R2.

That said, here's the FLASH that is going out regarding the new release.
All current customers should also be receiving a similarly worded letter
from our product manager.  If you have questions about any of the new
features listed here, we'd be pleased to address them.

Bill Rubin
IBM TJ Watson Research

>
>                                         ANNOUNCEMENT SUMMARY
>                                         ____________________
>
>
>
> Effective September 25, 1992, IBM announces the availability
> of  TCP/IP  Version  2  Release 2.1 for MVS (5735-HAL). This
> refresh release contains a number of functional as  well  as
> serviceability   improvements  over  previous  releases  and
> constitutes a functional  and  maintenance  replacement  for
> TCP/IP  Version  2  Release  2  for MVS (available 6/26/92).
> TCP/IP Version 2 Release 2.1 for MVS will form the base  for
> all   future   MVS  TCP/IP  (5735-HAL)  maintenance  (please
> reference the Statement of Program Support which follows).
>
> Copies of MVS TCP/IP V2R2.1 will automatically ship  to  all
> MVS  TCP/IP  Version  2  (5735-HAL)  customers of record. In
> addition, all existing orders will be upgraded to the  newly
> announced refresh level.
>
>
>
>
> SUMMARY OF CHANGES
> __________________
>
>
> TCP/IP  PROTOCOL  OFFLOAD SUPPORT:   As previously announced
> (Ivory letter  292-315),  MVS  TCP/IP  V2R2.1  now  supports
> offloading  of  the TCP/IP protocol stack through support of
> the IBM 3172 Model 3 Interconnect Controller  Offload  Mode.
> Offloading  of  the  processing associated with the TCP, UDP
> and lower protocol layers from the mainframe  to  a  channel
> attached  device  allows  for reduced CPU utilization on the
> mainframe  while  maintaining  or  improving   the   overall
> throughput of the host system. TCP/IP applications executing
> in  the  host  are  not affected by offloading of the TCP/IP
> transport protocols.
>
> Offloading of the TCP/IP protocol stack utilizes an attached
> IBM 3172 Model 3 running OS/2 2.0  (or  OS/2  SE  1.3)  with
> TCP/IP Version 1.2.1 for OS/2.
>
> Appropriate  status  information  is  maintained between the
> host and the offload device.
>
> CICS SOCKETS INTERFACE  C  LANGUAGE  SUPPORT:    MVS  TCP/IP
> V2R2.1  now offers C Language support for the CICS to TCP/IP
> Application Programming Interface. This support  allows  for
> the   development   of   customer   written   CICS-to-TCP/IP
> client/server applications where  either  the  corresponding
> server  or  client  is located on a TCP/IP connected foreign
> host. Cobol and Assembler  language  support  for  the  CICS
> Sockets  Interface  was  provided  previously  in MVS TCP/IP
> Version 2 Release 2.
>
> IBM RISC SYSTEM/6000 ESCON CONTROL UNIT ADAPTER:  MVS TCP/IP
> V2R2.1 will incorporate support  for  the  RISC  System/6000
> ESCON  Control  Unit  Adapter  (Ivory  letter 192-244, dated
> 9/22/92).  Support for this interface will allow MVS  TCP/IP
> to  communicate to one or more external networks governed by
> a RISC System/6000. This connectivity enhancement  increases
> TCP/IP  for  MVS's  performance potential through high-speed
> channel attachments to RISC System/6000-gated LANs.
>
> APPLICATION ENHANCEMENTS:  Several enhancements are  offered
> to previously existing TCP/IP application functions:
>
> In response to customer requests, MVS TCP/IP V2R2.1 has been
> extended  to  allow  a  maximum  of  5000  concurrent server
> connections. The previous limit in MVS TCP/IP V2R1 and  V2R2
> was 2000. The limit in MVS TCP/IP V1 was 256.
>
> The FTP server now offers several new features:
>
> o   FTP  server  SMF records will now contain a USERID field
>     where appropriate.
> o   The FTP-to-JES interface will now support the  retrieval
>     of  all  output  from  a  previously submitted batch job
>     throught a single GET request.
> o   The FTP-to-DB2 interface will  now  support  specifiable
>     column  headings  in output reports as well as providing
>     support for the retrieval of data in a format compatible
>     with various commercial spreadsheet programs.
>
> The SMTP servr  has  been  enhanced  in  MVS  TCP/IP  V2R2.1
> through  the  addition  of  the IPMAILER option. This option
> supports the delivery  of  mail  through  a  secondary  SMTP
> server  in  instances  where the primary server is unable to
> resolve the foreign host. This is similar to the  previously
> supported MAILER UNKNOWN option.
>
> X_Windows  support  is now extended to allow the development
> of reentrant X_Windows client applications.
>
> GDDM/XD  support  is  now  enhanced  to  allow  the  use  of
> X_Windows system fonts.
>
> USEABILITY:
>
> A  new  TRACEROUTE facility is provided in MVS TCP/IP V2R2.1
> to assist in diagnosis of internetwork routing problems.
>
> MVS TCP/IP V2R2.1 will now support timestamping of messages.
>
>
>
>
> STATEMENT OF PROGRAM SUPPORT
> ____________________________
>
>
> IBM TCP/IP  Version  2  Release  2.1  for  MVS  is  upwardly
> compatible  with  IBM TCP/IP Version 2 Release 1 for MVS and
> with IBM TCP/IP Version 2  Release  2  for  MVS.  Since  IBM
> TCP/IP  Version  2  Release  2.1 for MVS is a functional and
> maintenance  replacement  for IBM TCP/IP Version 2 Release 2
> for MVS and to ensure all maintenance for the affected areas
> is applied and remains current, all program services for IBM
> TCP/IP Version 2 Release 2 for MVS will be provided  at  the
> IBM  TCP/IP  Version  2  Release 2.1 level. Program services
> previously announced for IBM TCP/IP Version 2 for MVS (prior
> to Version 2 Release 2) will be available until December 31,
> 1992.
>
> To take advantage of the enhanced function and  maintenance,
> all  customers  are  urged  to  install IBM TCP/IP Version 2
> Release 2.1 for MVS at their earliest convenience.
>
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU