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Configuring a Single Host with Single Direct PU Using Dynamic and Static LUs

Document ID: 12311



Contents

Introduction
Prerequisites
      Requirements
      Components Used
      Conventions
Configurations
      Logical View
      IOCP
      MVS/VTAM XCA Major Node: XCA770
      VTAM Switched Major Node "SMNPU2"
      VTAM LUGROUP Major Node: DDDLUMPX
      Router Configuration for VM/VTAM
Verify
Troubleshoot
Related Information

Introduction

This configuration allows 253 TN3270 clients to access one application or monitor on one host.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

This document is not restricted to specific software and hardware versions.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Conventions

For more information on document conventions, refer to Cisco Technical Tips Conventions.

Configurations

In this section, you are presented with the information to configure the features described in this document.

Note: To find additional information on the commands used in this document, use the Command Lookup Tool (registered customers only) .

Logical View

53-a.gif

The TN3270 clients connect to IP address 10.14.20.34 (port 23), and can be TN3270 or TN3270E clients. The TN3270 clients should not specify a static logical unit (LU) name, but should specify (as usual) a 3270 terminal-type to emulate.

On the host side, the single physical unit (PU) devoted to TN3270 traffic is CAPPU1. A static terminal LU called CAP01L01 is defined in the switched major node definition, DIRPU2. It inherits the LU characteristics defined in the PU definition. This LU can be used by an incoming TN3270E session that specifies CAP01L01 as its desired LU.

Two printers also are attached to the CAPPU1 PU: one type 1 and one type 3 (named CAP01L02 and CAP01L03, respectively). In these examples, these LUs are run and defined by the Remote Spooling Communications Software (RSCS) Virtual Media (VM) printing application.

The remainder of the LUs are defined dynamically and have the characteristics assigned to them by way of the DDDLU exit (ISTEXCSD) run against the DDDLUGMP LUGROUP.

IOCP

                                          *
*
 CHPID PATH=((18)),TYPE=CNC,PART=(MVS,REC)
 CNTLUNIT CUNUMBR=0770,PATH=(18),UNIT=SCTC,UNITADD=((70,16))
 IODEVICE ADDRESS=(770,16),CUNUMBR=(0770),UNIT=SCTC
*

MVS/VTAM XCA Major Node: XCA770

TSTP5BE  VBUILD TYPE=XCA
PRTP5BE  PORT   DAPNO=0,CUADDR=770,SAPADDR=04,MEDIUM=RING,TIMER=60
*
* DIAL=YES on GROUP macro defines downstream PU2.0/PU2.1 devices
*
GRPP5BE  GROUP ANSWER=ON,                                              X
               AUTOGEN=(100,L,P),                                      X
               CALL=INOUT,                                             X
               DIAL=YES,                                               X
               ISTATUS=ACTIVE

VTAM Switched Major Node "SMNPU2"

 000001 SMNPU2    VBUILD TYPE=SWNET
 000002 * 
 000003 CAPPU1  PU    ADDR=02,                                                C
 000004               IDBLK=05D,                                              C
 000005               IDNUM=18101,                                            C
 000006               ISTATUS=ACTIVE,                                         C
 000007               LUGROUP=DDDLUGMP,                                       C
 000008               LUSEED=CAP01L##,                                        C
 000009               MAXPATH=1,                                              C
 000010               DLOGMOD=D4A32782,USSTAB=ISTINCDT,                       C
 000011               MODETAB=ISTINCLM,SSCPFM=USS3270,                        C
 000012               MAXDATA=2052,MAXOUT=2,PACING=7,VPACING=7,PUTYPE=2
 000013 CAP01L01 LU   LOCADDR=001
 000014 CAP01L02 LU   LOCADDR=002,MODETAB=RSCSTAB,DLOGMOD=RSCSPRT1,           C
 000015               LOGAPPL=APRSCS
 000016 CAP01L03 LU   LOCADDR=003,MODETAB=RSCSTAB,DLOGMOD=RSCSPRT3,           C
 000017               LOGAPPL=APRSCS

VTAM LUGROUP Major Node: DDDLUMPX

         VBUILD TYPE=LUGROUP
DDDLUGMP LUGROUP
327904E  LU    DLOGMOD=SNX32704,LOGAPPL=VM,                            X
               MODETAB=ISTINCLM,USSTAB=ISTINCDT,                       X
               SSCPFM=USS3270
3279S4E  LU    DLOGMOD=SNX32704,LOGAPPL=VM,                            X
               MODETAB=ISTINCLM,USSTAB=ISTINCDT,                       X
               SSCPFM=USS3270
327804E  LU    DLOGMOD=LSX32704,LOGAPPL=VM,                            X
               MODETAB=ISTINCLM,USSTAB=ISTINCDT,                       X
               SSCPFM=USS3270
327804   LU    DLOGMOD=D4A32782,LOGAPPL=ITPECHV,                       X
               MODETAB=ISTINCLM,USSTAB=ISTINCDT,                       X
               SSCPFM=USS3270
@        LU    DLOGMOD=D4A32782,LOGAPPL=VM,                            X
               MODETAB=ISTINCLM,USSTAB=ISTINCDT,                       X
               SSCPFM=USS3270

Router Configuration for VM/VTAM

This TN3270 router configuration has the channel connection plugged into Port 1 of the Channel Interface Processor (CIP) card. The XCA770 adapter definition is attached to the CIP Internal Token Ring LAN #1. Adapter 0 is bound for the external communications adapter (XCA) in virtual telecommunications access method (VTAM), while Adapter 1 is bound for TN3270 on CIP. The TN3270 server is active, and has one PU (CAPPU1) trying to connect. The CIP also has reserved the 10.14.20.32 subnet for exclusive use by tasks running on the CIP card.

Router# write terminal
Building configuration...
..
..
interface Channel2/1
 description CISCO Channel Interface Processor
 csna 0100 70
!
interface Channel2/2
 description TN3270 Server  
 ip address 10.14.20.33 255.255.255.248
 no keepalive
 max-llc2-sessions 100
lan TokenRing 1
 adapter 0 4000.0500.0001       

!--- Bound to XCA in VTAM.

 adapter 1 4000.0501.0001       

!--- Bound to TN3270 on CIP.

tn3270-server
maximum-lus 253
pu CAPPU1 05D18101 10.14.20.34 token-adap 1 44 
rmac 4000.0500.0001 rsap 04 lu-seed CAP0IL##

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

There is currently no specific troubleshooting information available for this configuration.


Related Information



Updated: Sep 09, 2005 Document ID: 12311