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Chapter 7. Communicating with remote workstation controllers

Содержание AS/400

Страница 1: ...iSeries Networking iSeries Communications Management ERserver...

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Страница 3: ...iSeries Networking iSeries Communications Management ERserver...

Страница 4: ...pyright International Business Machines Corporation 1998 2001 All rights reserved US Government Users Restricted Rights Use duplication or disclosure restricted by GSA ADP Schedule Contract with IBM C...

Страница 5: ...ata management DDM 17 Application program interface API performance considerations 17 Performance considerations for intersystem communications function 18 Performance considerations for Common Progra...

Страница 6: ...the Print Error Log to solve communication problems 80 Job logs and communication problems 80 Solving communication problems using communications trace 81 System service tools and communication probl...

Страница 7: ...ronment review the topics Optimizing communications performance and Communications applications You can configure your AS 400 system to communicate with another AS 400 system a non AS 400 system or a...

Страница 8: ...2 Version 5...

Страница 9: ...r printing 1 Open the PDF in your browser click the link above 2 In the menu of your browser click File 3 Click Save As 4 Navigate to the directory in which you would like to save the PDF 5 Click Save...

Страница 10: ...4 Version 5...

Страница 11: ...description A network server description describes which Integrated PC Server the local area network LAN and the application will be using To create a network server description do the following 1 Ty...

Страница 12: ...6 Version 5...

Страница 13: ...MAXFRAME parameters to their maximum value v Configure a WAN line as full duplex to provide you with a higher throughput for applications that can take advantage of this mode This can also provide hi...

Страница 14: ...eads Communications input output processor resource is also used to support the line activity v When a single job is running disk operations or doing non overlapped CPU processing the communications l...

Страница 15: ...line types This is due to the desirable combination of having a high media speed along with large frame sizes v When several sessions use a line or LAN concurrently the aggregate data rate may be high...

Страница 16: ...with communications lines and local area networks LANs you should not overload an input output processor IOP to prevent possible system performance bottlenecks The following information can help you...

Страница 17: ...ystems v The work that is performed in the QCMN subsystem is for connecting and disconnecting from the system Error recovery considerations are important in the configuration of the communications sub...

Страница 18: ...Telnet are some examples of these types of connections that should be separated When you configure interactive subsystems identify how you want the interactive users to be separated and create the app...

Страница 19: ...ptimize batch jobs for communications consider the following v Break the application into pieces and having multiple batch threads jobs operate concurrently v Reduce the number of open and close opera...

Страница 20: ...rmation about AnyNet 400 sockets see the book Sockets Programming Setting up the AnyNet environment AnyNet 400 is an AnyNet family product These products allow you to use application programs that are...

Страница 21: ...ion address A TCP IP domain name server converts these location names to IP addresses Programs supported include distributed data management DDM Distributed Relational Database Architecture DRDA SNA d...

Страница 22: ...For more information about creating subsystems see the Work Management book 16 Version 5...

Страница 23: ...of the following routing functions v Non adjacent nodes appear adjacent and so APPC programs may communicate directly to programs in non adjacent nodes without any APPC programs on the intermediate n...

Страница 24: ...ion ICF to write application programs that you want to communicate with advanced program to program communications APPC ICF also provides program to device communications between the AS 400 system and...

Страница 25: ...rograms do the following v Minimize the use of flush and confirm v Receive a compile record and parse it in your buffer v Do not use multiple receive calls to receive a single record v Use Request to...

Страница 26: ...20 Version 5...

Страница 27: ...e Definition SC23 0111 and Network Control Program Resource Definition Reference SC30 3254 v Matching AS 400 line description parameters for a host system v Matching AS 400 controller description para...

Страница 28: ...specified for the host system if CNN is MP or NONSWTPP DIAL NO must be specified If CNN MP is specified the SERVICE macroinstruction must be used to specify the sequence in which stations are served...

Страница 29: ...h is required if AS 400 host controller description specifies RMTCPNAME ANY SWITCHED YES or SNBU YES and LINKTYPE is SDLC or IDLC This parameter should be specified only if the host system is running...

Страница 30: ...ATCSTRyy The SSCPID parameter is a decimal value 0 65535 the AS 400 value is specified as a 12 digit hexadecimal number of which the first 2 digits are 05 Station address STNADR PU ADDR AS 400 system...

Страница 31: ...ontrol table DFHTCT MODENAM parameter Remote location name RMTLOCNAME LU LOGAPPL Values specified for each system must match Remote network identifier RMTNETID BUILD NETID Values specified for each sy...

Страница 32: ...on the AS 400 Create Class of Service Description CRTCOSD command COSD parameter and CRTMODD command COS parameter must be defined in the host logon mode table using the COS parameter on the MODEENT...

Страница 33: ...xample 2 AS 400 to host system over a token ring line This diagram shows the AS 400 values that need to match the VTAM values when you use a token ring line Chapter 5 Communicating with host systems 2...

Страница 34: ...Example 3 AS 400 system for DLUR support with the host system 28 Version 5...

Страница 35: ...o match the VTAM values when you use AS 400 DLUR and VTAM Example 4 AS 400 with APPN connection to VTAM This diagram shows the AS 400 values that need to match the VTAM values when you connect with AP...

Страница 36: ...30 Version 5...

Страница 37: ...ster DLUR controller description using the Retrieve Configuration Source RTVCFGSRC command 2 Edit the member to change the link type to DLUR 3 Convert the source to a CL program 4 Create the CL progra...

Страница 38: ...Note This must match the VTAM LU name with the corresponding local location address LOCADDR on VTAM For more information on DLUR see Dependent LU Requester Support DLUR 32 Version 5...

Страница 39: ...remote AS 400 system You must coordinate communications configuration parameters between local and remote AS 400 systems These parameters are described in the following table This table shows those p...

Страница 40: ...056 for the AS 400 line You can use the Work with Line Descriptions WRKLIND command to determine this value Logical channel entries LGLCHLE LGLCHLE If X 25 DCE support is specified X25DCE YES or X25DC...

Страница 41: ...al and remote AS 400 systems To configure a local AS 400 to a remote AS 400 v See Connecting one AS 400 to another AS 400 system on page 37 for an example of connecting one AS 400 to another AS 400 sy...

Страница 42: ...ystem must be coordinated Switched network backup SNBU SNBU Values specified for each system must match Source service access point SSAP DSAP SSAP specified for the local AS 400 system must match the...

Страница 43: ...description Remote location name RMTLOCNAME LCLLOCNAME For systems not using APPN APPN NO specified for the controller and device descriptions this value must match the value specified by the LCLLOCN...

Страница 44: ...This example shows the matching parameters between an AS 400 connecting to another AS 400 that uses X 25 Example 2 AS 400 to AS 400 using SDLC 38 Version 5...

Страница 45: ...another AS 400 that uses SDLC Example 3 AS 400 to AS 400 using one way automatic dialing This example shows the matching parameters between an AS 400 connecting to another AS 400 that uses one way aut...

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Страница 47: ...Ethernet on page 44 Matching AS 400 parameters for a 5494 connected by frame relay on page 46 Matching AS 400 parameters for a 5494 connected by SDLC on page 48 Matching AS 400 parameters for a 5494...

Страница 48: ...LOCNAME H1 1 Values specified for the AS 400 CRTCTLRWS command and for the 5494 Remote Control Unit must match This will probably match LCLLOCNAME in the network attributes This value will probably ma...

Страница 49: ...5494 configuration must be compatible with the physical interface INTERFACE parameter specified on the CRTLINSDLC command Select 4 for the network connections Example Connecting AS 400 to a 5494 contr...

Страница 50: ...er that is connected by Ethernet A description of these parameters are in the following table Then the related fields and subfields from the 5494 configuration display and the AS 400 configuration val...

Страница 51: ...cal location name LCLLOCNAME H1 1 Values specified for the AS 400 CRTCTLRWS command and for the 5494 Remote Control Unit must match This will probably match LCLLOCNAME in the network attributes This v...

Страница 52: ...can coordinate these values automatically or manually Pick one of these ways v To automatically connect the AS 400 to a 5494 controller you can use the automatic remote controller QAUTORMT system valu...

Страница 53: ...ecified for the LINKTYPE parameter on the CRTCTLAPPC command For APPC controllers that specify LINKTYPE SDLC the value specified in the 5494 configuration must be compatible with the physical interfac...

Страница 54: ...re listed next These values are followed by the AS 400 configuration value and the matching 5494 value to be entered in the display subfield You can coordinate these values automatically or manually P...

Страница 55: ...k attributes Link type LINKTYPE AA SDLC 0 2 3 5494 configuration values must match the values specified for the LINKTYPE parameter on the CRTCTLAPPC command For APPC controllers that specify LINKTYPE...

Страница 56: ...in the AS 400 controller description and for the 5494 Remote Control Unit must match This value must also be specified as the last 2 digits of the AS 400 EXCHID parameter Example Connecting AS 400 to...

Страница 57: ...Chapter 7 Communicating with remote workstation controllers 51...

Страница 58: ...5494 Remote Control Unit Planning Guide GA27 3936 v IBM 5494 Remote Control Unit User s Guide GA27 3852 AS 400 Prompt AS 400 Parameter 5494 AS 400 Value 5494 Value Notes Field Subfield Connection numb...

Страница 59: ...the AS 400 controller description and for the 5494 Remote Control Unit must match This value must also be specified as the last 2 digits of the AS 400 EXCHID parameter Example Connecting AS 400 to a 5...

Страница 60: ...lay subfield You can coordinate these values automatically or manually Pick one of these ways v To automatically connect the AS 400 to a 5494 controller you can use the automatic remote controller QAU...

Страница 61: ...rs that specify LINKTYPE SDLC the value specified in the 5494 configuration must be compatible with the physical interface INTERFACE parameter specified on the CRTLINSDLC command Select 1 for communic...

Страница 62: ...ol Unit must match This value must also be specified as the last 2 digits of the AS 400 EXCHID parameter Example Connecting AS 400 to a 5494 controller connected by X 25 Configuration parameters must...

Страница 63: ...Chapter 7 Communicating with remote workstation controllers 57...

Страница 64: ...Ethernet support To configure the AS 400 to a 3174 controller v See Example Connecting an AS 400 to a 3174 control unit on page 61 for an example of connecting an AS 400 to a 3174 retail controller v...

Страница 65: ...25 SVCs the connection number specified on the CRTCTLRWS command and in question 424 must match Destination service access point DSAP 940 Ring Address Assignment The value specified for the DSAP param...

Страница 66: ...n 104 must match the STNADR specified on the CRTCTLRWS command Switched connection SWITCHED 317 Telecommunication Facilities Values specified on the CRTLINSDLC command and in question 317 match as fol...

Страница 67: ...HNAD For X 25 SVCs the network address specified on the CRTLINX25 command and in sequence number 410 must match Modem data rate select MODEMRATE 318 Full or Half Speed Transmission The values specifi...

Страница 68: ...70x finance controllers You must match the AS 400 configuration parameters with the configuration CPGEN for the 4701 and 4702 finance controllers These parameters are described in the following table...

Страница 69: ...ications the LLC parameter must specify QLLC for the type of logical link control LINKPCL QLLC must also be specified on the AS 400 CRTCTLFNC command Link type LINKTYPE COMLINK TYPE 4700 TYPE paramete...

Страница 70: ...address STNADR X25CKT CUA The values specified for the AS 400 STNADR parameter on the CRTCTLFNC command must match the physical address CUA parameter specified for the 4700 Matching AS 400 parameters...

Страница 71: ...iderations in the Communications Configuration book Connection type CNN SDLC Communications Switched line Values specified for the FBSS and AS 400 configurations must match v If the FBSS response is Y...

Страница 72: ...parameter value specified on the CRTDEVFNC command The FBSS logical unit assignments are decimal numbers the AS 400 values must be hexadecimal LU Assignments for Display Emulators LU Assignments for...

Страница 73: ...AS 400 system and in the controller configuration For an example on connecting an AS 400 to a 4690 retail controller see Examples Connecting AS 400 to a 4690 retail controller on page 75 To match par...

Страница 74: ...e Store System Language and Host Services Macro Reference To configure the AS 400 to a 3651 retail controller use the following table AS 400 Prompt AS 400 Parameter 3651 Definition Statement 3651 Para...

Страница 75: ...describes how to coordinate values for parameters on the AS 400 CRTLINSDLC and CRTCTLRTL commands with bits that are specified for the 3651 SDLCLIN parameter The SDLCLIN parameter is specified as a se...

Страница 76: ...rates the answer tone or 1 to indicate that the controller generates the answer tone 1 None For information about SDLC see Synchronous data link control network on page 94 Matching AS 400 parameters f...

Страница 77: ...D parameter specified on the AS 400 CRTCTLRTL command Station address STNADR QVSFGLNK POLCHAR 3684 POLCHAR parameter must match the 2 digit hexadecimal address specified for the STNADR parameter on th...

Страница 78: ...network backup 1 SNBU YES 5 0 MODEMRATE FULL Data rate select speed 1 MODEMRATE HALF 6 0 DUPLEX HALF Data carrier setting 1 DUPLEX FULL 7 0 None Answer tone generation There is no equivalent parameter...

Страница 79: ...meter specified on the AS 400 CRTLINSDLC command NRZI data encoding NRZI 4680 NRZI MODE parameter must match the NRZI parameter specified on the AS 400 CRTLINSDLC command Station address STNADR 4680 S...

Страница 80: ...er v See Examples Connecting AS 400 to a 4690 retail controller on page 75 for an example of an AS 400 connecting to a 4690 retail controller v Use the following table to connect to a 4690 retail cont...

Страница 81: ...CRTLINSDLC command and the RIPSS configuration must match v If the RIPSS response is NRZI NRZI YES must be specified for the CRTLINSDLC command v If the RIPSS response is NRZ NRZI NO must be specifie...

Страница 82: ...Example 2 AS 400 to 4690 PEER connection over token ring network 76 Version 5...

Страница 83: ...Chapter 7 Communicating with remote workstation controllers 77...

Страница 84: ...78 Version 5...

Страница 85: ...solve communication problems Message queues receive some messages that are related to communications failures The message lists possible causes of the problem and additional information depending on t...

Страница 86: ...ed QPCSMPRT or in a specified output file 2 Find and read these error logs For more information about displaying the Print Error Log see the Communications Management book A variety of job logs may co...

Страница 87: ...RC End Communications Trace The ENDCMNTRC command ends the trace currently running on the specified line network interface description or network server description The ENDCMNTRC command saves the com...

Страница 88: ...b is active to find out where the error might have occurred The TRCCPIC command captures information about CPI Communications calls that is processed by your program The system collects trace informat...

Страница 89: ...lue that is specified on the Trace full prompt If the trace storage area becomes full and the collection of trace records stops you must enter the TRCCPIC command again to create output The output tha...

Страница 90: ...stem based on this value Automatic adjustment may be a desirable feature particularly when unexpected loads hit the system Automatic adjustment can help the system perform better through these peak lo...

Страница 91: ...fined size is zero 602 Transaction program name value is reserved but not supported 604 Matching routing entry was not found 605 Program was not found 704 Password is not valid 705 User is not authori...

Страница 92: ...to current library 1509 Not authorized to QS36PRC in current library 1510 Not authorized to procedure in current library 1511 Not authorized to System 36 environment library 1512 Not authorized to fi...

Страница 93: ...be any of the following systems v AS 400 system v System 36 v System 38 v IBM personal computer v Displaywriter v Series 1 v 5520 Administrative System v RISC System 600 Reduced Instruction Set Compu...

Страница 94: ...gramming Interface CPI Communications call interface Using CPI Communication calls carries the LU 6 2 verbs v The CICS file interface In CICS 400 support the LU 6 2 verbs are carried out by using EXEC...

Страница 95: ...se architecture or can operate under the base architecture plus options There are performance capabilities available under the Tower RTP option not available with the base The page HPR architecture op...

Страница 96: ...formation units through networks SNA also controls the configuration and operation of networks APPC APPN and HPR are some examples of the protocols included within SNA They can be used to connect the...

Страница 97: ...onous transfer mode ATM network interface NWI describes everything that is common across the ATM physical interface Each AS 400 ATM input output adapter 2809 or 2810 may have one network interface att...

Страница 98: ...usually in a star wired ring topology to a wiring concentrator such as the IBM 8228 Multistation Access Unit The concentrator serves as a logical ring around which data is transmitted at 4 million or...

Страница 99: ...s support allows you to send data to and receive data from a remote program or device attached by either an asynchronous start stop or an X 25 line Your application program must provide the data strea...

Страница 100: ...switching X 31 For more information on ISDN see the topics ISDN on AS 400 and ISDN data link control network ISDN data link control network You can use ISDN data link control IDLC to connect two syste...

Страница 101: ...SNA sessions that can include Advanced Program to Program communications APPC SNA upline facility remote work stations or finance communications v One connection to an asynchronous communications hos...

Страница 102: ...96 Version 5...

Страница 103: ......

Страница 104: ...Printed in U S A...

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