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Configuring TN3270 Session Switching Via DLUR/DLUS

Document ID: 12315



Contents

Introduction
Before You Begin
      Conventions
      Prerequisites
      Components Used
      Design Notes
Configure
      Network Diagram
      Configurations
Verify
Troubleshoot
Related Information

Introduction

This document provides a sample configuration for configuring TN3270 session switching via Dependent LU Requester/Dependent LU Server (DLUR/DLUS).

Before You Begin

Conventions

For more information on document conventions, see the Cisco Technical Tips Conventions.

Prerequisites

There are no specific prerequisites for this document.

Components Used

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

The information presented in this document was created from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.

Design Notes

  • There two mainframes: one running Multiple Virtual Storage (MVS), the other one running Virtual Media (VM). Both have channel-attached Cisco routers.

  • There is a Data Link Switching Plus (DLSw+) cloud between the routers.

  • There is no Advanced Peer-to-Peer Networking (APPN) subsystem on the routers, except for the TN3270 server DLUR on Channel Interface Processor B (CIPB). There is no TN3270 server on Channel Interface Processor A (CIPA) (which is connected to the MVS mainframe).

  • The TN3270 server defines two IP addresses to connect to either MVS or VM:

    • 10.32.70.1: connect to MVS

    • 10.32.70.2: connect to VM

  • The TN3270 server has a DLUR/DLUS connection to VM Virtual Telecommunications Access Method (VTAM) (which is an APPN network node). MVS VTAM is an APPN end node. All three APPN nodes share a common Virtual Routing Node (VRN), so there is no need to define in the TN3270 server the link station to MVS VTAM. There will be a CP-CP session between MVS and VM and another CP-CP session between TN3270 (end node) and VM VTAM (network node server).

Configure

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) .

Network Diagram

This document uses the network setup shown in the diagram below.

57-a.gif

Configurations

This document uses the configurations shown below.

  • IOCP

  • VTAM XCA Major Nodes

  • VTAM Switched Major Node (VM mainframe)

  • VTAM LUGROUP Major Node (VM mainframe)

  • Router Configuration for CIPA

  • Router Configuration for CIPB

IOCP

CHPID 19 is used to connect to CIPA

*
 CHPID PATH=((19)),TYPE=CNC
 CNTLUNIT CUNUMBR=0350,PATH=(19),UNITADD=((F0,16)),UNIT=SCTC, SHARED=N       
 IODEVICE ADDRESS=(8E0,16),CUNUMBR=(0350),UNIT=CTC
*

CHPID 12 is used to connect to CIPB

* * CHPID PATH=((12)),TYPE=CNC CNTLUNIT CUNUMBR=0700,PATH=(12),UNITADD=((00,16)),UNIT=SCTC, 
  SHARED=N IODEVICE ADDRESS=(700,16),CUNUMBR=(0700),UNIT=SCTC

VTAM XCA Major Nodes

 
CIPXCAA  VBUILD TYPE=XCA
CIPXCAAP PORT  ADAPNO=0,CUADDR=8F0,SAPADDR=04,MEDIUM=RING,TIMER=60,    X
                VNNAME=DLSW,                                            X
                VNGROUP=CIPXCAAG
CIPXCAAG GROUP ANSWER=ON,                                              X
                AUTOGEN=(10,L,P),                                       X
                CALL=INOUT,                                             X
                DIAL=YES,                                               X
                ISTATUS=ACTIVE
 
*************************************************************************
 
CIPXCAB  VBUILD TYPE=XCA
CIPXCABP PORT  ADAPNO=0,CUADDR=700,SAPADDR=04,MEDIUM=RING,TIMER=60,    X
                VNNAME=DLSW,                                            X
                VNGROUP=CIPXCABG
CIPXCABG GROUP ANSWER=ON,                                              X
                AUTOGEN=(10,L,P),                                       X
                CALL=INOUT,                                             X
                DIAL=YES,                                               X
                ISTATUS=ACTIVE

VTAM Switched Major Node (VM mainframe)

 
 SWTN3270 VBUILD TYPE=SWNET,MAXGRP=10,MAXNO=10
 *
 TN3270   PU    ADDR=01,                                                X
                PUTYPE=2,                                               X
                ISTATUS=ACTIVE,                                         X
                CPCP=YES,                                               X
                TGN=1,                                                  X
                NETID=NETA,                                             X
                CPNAME=DLUR3270
 *
 VMPU     PU    ADDR=01,                                                X
                PUTYPE=2,                                               X
                LUGROUP=DDDLUVM,LUSEED=VMLU##,                          X
                PACING=8,VPACING=8,                                     X
                IDBLK=05D,                                              X
                IDNUM=01000
 *
 MVSPU    PU    ADDR=01,                                                X
                PUTYPE=2,                                               X
                LUGROUP=DDDLUMVS,LUSEED=MVSLU##,                        X
                PACING=8,VPACING=8,                                     X
                IDBLK=05D,                                              X

VTAM LUGROUP Major Node (VM mainframe)

 
 DDDLUUSX VBUILD TYPE=LUGROUP
 DDDLUVM  LUGROUP
 327904E  LU    DLOGMOD=D4C32784,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=VM
 327804E  LU    DLOGMOD=D4C32704,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=VM
 327804   LU    DLOGMOD=D4C32782,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=VM
 @        LU    DLOGMOD=D4C32782,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=VM
 *
 DDDLUMVS LUGROUP
 327904E  LU    DLOGMOD=D4C32784,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=MVS
 327804E  LU    DLOGMOD=D4C32704,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=MVS
 327804   LU    DLOGMOD=D4C32782,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=MVS
 @        LU    DLOGMOD=D4C32782,MODETAB=ISTINCLM,USSTAB=ISTINCDT,      X
                SSCPFM=USS3270,LOGAPPL=MVS

Router Configuration for CIPA

version 11.0
!
hostname CIPA
!
enable password cisco
!
source-bridge ring-group 100
dlsw local-peer peer-id 192.71.1.20
dlsw remote-peer tcp 0 192.71.1.30
!
interface Ethernet0/0
 ip address 192.71.1.20 255.255.255.0
!
interface Channel1/0
 no ip address
 csna 0100 F0
!
interface Channel1/2
 no ip address
 lan Tokenring 0
  source-bridge 20 1 100
  adapter 0 4000.aaaa.aaaa
!
logging buffered 50000
!
end

Router Configuration for CIPB

version 11.2
!
hostname CIPB
!
enable password cisco
!
source-bridge ring-group 100
dlsw local-peer peer-id 192.71.1.30
dlsw remote-peer tcp 0 192.71.1.20
!
interface Ethernet0/0
 ip address 192.71.1.30 255.255.255.0
!
interface Channel1/0
 no ip address
 csna 0100 00
!
interface Channel1/2
ip address 10.32.70.30 255.255.255.0
 no keepalive
 lan Tokenring 0
  source-bridge 30 1 100
  adapter 0 4000.cccc.cccc     (bound for SCA in VTAM)  
  adapter 1 4000.bbbb.bbbb     (bound for TN3270 on CIP) 
 tn3270-server
  dlur NETA.DLUR3270 NETA.CISCOBXL
   lsap token-adapter 1 C0
    vrn NETA.DLSW
    link CISCOBXL rmac 40000.CCCC.CCCC rsap 04
   pu MVSPU 05D01001 10.32.70.1
   pu VMPU 05D01000 10.32.70.2
!
logging buffered 50000
!
end

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: 12315