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Machine Level Table

The machine level table (MLT) contains information such as the microcode level of
the machine, the type and version of control program (NCP or PEP), and the load
module being used.

This table provides information required by the maintenance personnel. The
machine level table can be displayed from the operator console. Using SSP, this
file may be transferred and printed at the host whenever a microcode dump is
requested.

 IPL Port

An IPL port is any communication link (LSS or HSS) used to transfer the control
program from the host to the controller. The user uses the link IPL port (LKP)
function to define the communication link addresses for each IPL port at installation

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time, or to update them. This function is not supported by ESS.

The parameters of each IPL port that are used to initialize the controller are
maintained on the MOSS disk.

Machine Status Area

The machine status area (MSA) is an area of the console screen. It displays
permanent information on the 3745 status.

This area is divided into fields respectively dedicated to various status information.
It provides the operator with the MOSS, scanner, token-ring adapter, and TIC
status. It displays information on the progress of controller IPL and scanner IML
functions.

 Password Management

Access to the system is controlled by passwords defined by the user.

The password management (PSW) function enables the user to update the
passwords.

The password is required when logging on from a local, remote, or alternate
console. A temporary or permanent maintenance password enables IBM service
personnel to access the system through the RSF link.

Channel Interface Display

The channel adapter enable/disable function is always accessible from the attached
console.

The related menu is displayed immediately after the console power-on and MOSS
IML. For this function only, no password is necessary. The user can also display
additional information relating to the host(s) to which a channel interface is
attached.

 Port Swapping

The port swap function (PSF) is used to switch one LIC or TIC port to another
without control program regeneration.

If a link to a port is disconnected (line, LIC, or scanner failure), this failing link can
be logically and physically switched from its original port to a spare one. Through

   

Chapter 4. Controller Description

4-31

Summary of Contents for ThinkPad 130

Page 1: ...IBM 3745 Communication Controller Models 130 150 and 170 IBM Introduction GA33 0138 2...

Page 2: ......

Page 3: ...IBM 3745 Communication Controller Models 130 150 and 170 IBM Introduction GA33 0138 2...

Page 4: ...o your IBM representative or to the IBM branch office serving your locality A form for readers comments is provided at the back of this publication If the form has been removed comments may be address...

Page 5: ...BLICATION AS IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow discl...

Page 6: ...er than recommended cables and connectors or by unauthorized changes or modifications to this equipment Unauthorized changes or modifications could void the user s authority to operate the equipment T...

Page 7: ...IBM 3745 Communication Controller Model 130 150 or 170 with an IBM 3151 Display Station as Operator Console Note This picture shows the design model only v...

Page 8: ...vi IBM 3745 Models 130 150 170 Introduction...

Page 9: ...capabilities of the IBM 3745 Communication Controller Models 130 150 and 170 in their data communication network The reader is assumed to be familiar with data communication networks Terms Used in Th...

Page 10: ...allation and reconfiguration improvements Where to Find More Information The Bibliography on page X 11 lists 3745 manuals according to the user tasks they describe viii IBM 3745 Models 130 150 170 Int...

Page 11: ...ment 3 1 Controller Resident Programs 3 1 Network Control Program NCP 3 1 Partitioned Emulation Programming Extension 3 2 Generating and Loading the Control Program 3 2 Multiple Load Module 3 3 Automa...

Page 12: ...Box Event Records 5 3 AutoBER Program and Refcode 5 4 Retry and Recovery 5 4 Chapter 6 Controller Maintenance 6 1 Remote Support Facility 6 4 Installation and Upgrade 6 5 3745 130 150 170 General Data...

Page 13: ...nodes distributed data processing center nodes concentrator access nodes intermediate routing nodes in the network Intelligent refers to their ability to dynamically alter certain characteristics of t...

Page 14: ...unication controllers run under control of the Network Control Program NCP stored in their own storage and generated in the host using the System Support Programs SSP 1 2 IBM 3745 Models 130 150 170 I...

Page 15: ...IBM 3745 Communication Controllers in a Typical Network Chapter 1 Highlights 1 3...

Page 16: ...time as some items are mutually exclusive see IBM 3745 Configuration Program GA33 0093 3745 Model 150 Environment 32 Low medium speed lines 16 Integrated DCEs Modems DSUs 2 High speed lines 1 active a...

Page 17: ...speed lines 2 active at a time 4 Token rings 4 Ethernet type LANs NOTE All the above connection capabilities might not be present at the same time as some items are mutually exclusive see IBM 3745 Con...

Page 18: ...ssociated DCEs b Other IBM communication controllers via medium or high speed lines and their associated DCEs c Local clusters and terminals directly attached without DCE d Remote clusters and termina...

Page 19: ...n line Ethernet type network and token ring network attachments are possible The modularity of the 3745 130 150 170 hardware and control programs provides a high degree of flexibility in configuring a...

Page 20: ...n storage MB Channel adapters Low medium speed lines Integrated DCEs Modems DSUs High speed lines Token rings Ethernet type LANs 1 8 4 0 0 4 4 4 1 8 0 32 16 2 2 2 1 8 4 96 32 4 2 4 1 8 16 896 416 16 8...

Page 21: ...3745 continues to run Remote support facility The following capabilities also enhance the availability of the controller operation Scheduled power on Concurrent and scheduled IPL in all network commu...

Page 22: ...from one port of this network See also Automatic Control Program Load on page 3 4 Enhanced load module operation allows the operator to transfer and save the control program load modules on the hard...

Page 23: ...eration avoiding controller shutdown in various failure situations The error handling procedures and improved problem determination lead to better serviceability Connectivity The architecture of the 3...

Page 24: ...2 4 IBM 3745 Models 130 150 170 Introduction...

Page 25: ...tion programming PEP mode to support non SNA devices Network Control Program NCP NCP Version 5 provides major capabilities for SNA networks with synchronous data link control SDLC The 3745 operates wi...

Page 26: ...tioned emulation programming PEP extension of NCP allows the NCP and the EP to coexist in the same 3745 PEP lets NCP operate certain lines in network control mode while operating others in emulation m...

Page 27: ...oad module last loaded in the CCU if it was saved to the disk or loaded from the disk during IPL This load module is displayed specified as the active load module at the 3745 console see Disk IPL Info...

Page 28: ...disk the network operator must have specified this option during NCP loading This capability can also be selected for any IPL operation In that case The CCU initialization automatically uses the activ...

Page 29: ...2702 2703 and from IBM 3704 3705 3720 and 3725 communication controllers that run EP The 3745 Models 310 and 610 have no EP stand alone support Stand alone Emulation Program Release 8 operates in 3745...

Page 30: ...ase 5 in MVS VM or VSE environments Version 3 Release 5 1 in MVS environment Version 3 Release 6 in MVS and VM environments SSP is used to generate the 3745 control program In addition SSP provides ut...

Page 31: ...lps the user to get problem determination information that is generated at resources that are either link attached or channel attached to the host system As a cohesive set of SNA host network manageme...

Page 32: ...3 8 IBM 3745 Models 130 150 170 Introduction...

Page 33: ...of three main functional areas The following is a functional description of the main components and available features of the 3745 130 150 170 The overall data flow of a maximum 3745 130 150 170 confi...

Page 34: ...ading the control program through a host channel or a communication link or from the controller hard disk Data transfer between the CCU and the main storage is achieved by the storage control and enha...

Page 35: ...lows the data address and control information to be exchanged between the CCU work registers and the channel and line adapters DMA Bus The DMA bus allows data transfer only in cycle steal between the...

Page 36: ...mode The instantaneous data rate can reach a maximum speed of 3MB per second Channel adapter with data streaming is supported by the IBM 937X 3090 and ES 9000 Processors The host connection can only b...

Page 37: ...to two channels of the same host Both interfaces cannot be active simultaneously and the host is responsible for activating them alternately and dynamically This maximizes the availability of the hos...

Page 38: ...nnection are used to connect data communication lines The transmission subsystem TSS The high performance transmission subsystem HPTSS The Ethernet type LAN subsystem ESS The token ring subsystem TRSS...

Page 39: ...six low speed scanners LSSs or Up to four low speed scanners LSSs if two HSSs or ELAs are installed And Up to four LIC bases LIBs Note A LIB is functionally equivalent to a LIC unit LIU of the 3745 2...

Page 40: ...anges The twisted pair interface eliminates the fixed positional relationship between scanner and LIC The flexible nature of the serial link allows the CSP and the connecting LICs to be in any of thei...

Page 41: ...er speed lines 256 kbps with other LICs Notes 1 It is the user s responsibility to ensure that the currently active line configuration does not overload the scanner processing capability See the expla...

Page 42: ...are up to four LIC bases LIBs Each LIB houses One multiplexer MUX and Up to eight line interface couplers LICs The figure below shows a maximum configuration for a 3745 170 4 10 IBM 3745 Models 130 15...

Page 43: ...Appendix A for details LIC Weights The weight of a line is a value 0 4 through 100 that represents the percentage of scanner occupation The weight of a line depends on its speed bps the protocol SS BS...

Page 44: ...supports the following CCITT V 25 BIS options Call establishment in SDLC or start stop mode Data transmission in SDLC BSC or start stop mode Call request with number to be dialed CRN command optional...

Page 45: ...BSC SDLC Interface CCITT V 35 32 kbps 32 to 64 64 kbps Number of LIC3s per scanner 8 4 to 8 1 or 2 Speed Up to 9 6 kbps Protocol SDLC Interface CCITT X 21 Number of LIC4As per scanner Up to 8 Chapter...

Page 46: ...or 2 Speed 4 8 9 6 or 14 4 kbps Protocol BSC SDLC Interface Voice grade telecommunication network Number of LIC5s per scanner Up to 16 Configuration Point to point multipoint The LIC5 integrated DCEs...

Page 47: ...l 10 or 18 Data Service Unit Channel Service Unit DSU CSU Notes 1 LIC5 and LIC6 integrated DCEs can stand poor line conditions or temporary line problems For this the operator can select a slower spee...

Page 48: ...s of the integrated DCEs see Chapter 5 Problem Determination Various parameters are stored in a nonvolatile random access memory RAM Details on LIC5 DCEs can be found in the IBM 786x Modem Description...

Page 49: ...ermediate routing node IRN support of high speed line to another communication controller This connection must be SDLC duplex point to point nonswitched line traffic This high speed scanner can also b...

Page 50: ...ating at speeds of either 4 or 16 Mbps Token Ring Multiplexer TRM The TRM handles operations between the NCP running in the CCU and the two TICs Token Ring Interface Coupler TIC Each TIC contains a mi...

Page 51: ...he Ethernet adapter supports two transceiver ports connected to Ethernet V2 or IEEE 802 3 LAN Both ports can be active at the same time to the NCP The ELA interface to the external equipment is a IEEE...

Page 52: ...error notification including for the integrated DCEs Problem determination error in the network including the controller Failure isolation and repair error in the controller Remote support facility l...

Page 53: ...00 bps DCE to the controller Only one console may be active at a time If the remote support facility RSF is used it allows communication between the MOSS and the IBM RETAIN system The RSF terminal can...

Page 54: ...k Then the latter becomes the only disk system used by the MOSS If the disk fails MOSS IML can be performed from the diskette at the control panel The hard disk contains the following Scanner microcod...

Page 55: ...el display gives information on power control and service mode The ten digit alphanumeric display shows the operator progress and errors during initialization It also displays progress of the MOSS dia...

Page 56: ...sole It also provides attachment for the remote support facility RSF The consoles and RSF are connected to the MOSS via a common communication adapter Only one console can be active at a time There is...

Page 57: ...a a DCE The console which is compatible with CCITT V 24 communicates with the 3745 in duplex start stop mode at 1200 bps The remote console can be An IBM 3151 Display Station running in native mode An...

Page 58: ...d to an IBM 7427 Console Switching Unit The IBM 7427 is an RPQ A maximum of four IBM communication controllers can share a local console In this case the shared console must be at a maximum distance o...

Page 59: ...he BER file on the controller hard disk Generation of A reference code by the autoBER program for each new BER Alert messages for display at the host console via NCP or PEP using the alert support pro...

Page 60: ...load module from disk to diskette and from diskette to disk for Remote Loading and Activation Isolate hardware faults in the controller Isolate faults on lines and token ring adapters Manage the remot...

Page 61: ...am load module on the controller hard disk When two control program load modules are stored on the disk the load module designated for automatic loading is used See Generating and Loading the Control...

Page 62: ...l adapters and two processor switches the line adapters the line interface couplers the Ethernet adapters the cables and the clocking modes The configuration data file is created at manufacturing time...

Page 63: ...ous status information It provides the operator with the MOSS scanner token ring adapter and TIC status It displays information on the progress of controller IPL and scanner IML functions Password Man...

Page 64: ...The date and time of each load module are displayed on the MOSS display The user can also set the automatic IPL or dump option for the required load module and purge the control program dump file Eve...

Page 65: ...oller errors component of the 3745 itself These errors are detected by the MOSS and can be fixed either by the customer or by the IBM service organization see pages 6 2 and 6 3 2 Network errors DCEs l...

Page 66: ...INOP message for the VTAM console if NetView is not installed along with a logging record Logrec for the VTAM log file Errors detected in the integrated DCE can be handled as 1 An error of a controlle...

Page 67: ...with the most probable cause of network problems INOP messages RECMS or RECFMS for network problems and NMVT for controller problems are reported to the host via VTAM The NetView program presents NMV...

Page 68: ...e of error and gives information about the suspected component When the NetView program is not supported or not active the error is reported as a record to the VTAM log file Logrec and an alarm messag...

Page 69: ...swapping function If a channel adapter is disabled that route to a host is inoperative When the line status given by the portable keypad display or host messages indicates poor condition of the lines...

Page 70: ...printouts NetView facilities Refcode1 Host initiated link tests Controller Facilities Control panel functions Alarm content Event log file Refcode1 Machine status display Diagnostics1 Dumps and dump...

Page 71: ...splay Port swapping LSS and TRA services1 Channel adapter services1 Power services Automatic CCU scanner and TIC dump Internal and external trace on LSS lines TIC trace Internal trace on HSS and ELA l...

Page 72: ...5 8 IBM 3745 Models 130 150 170 Introduction...

Page 73: ...olate hardware failures in the controller They also help verify the controller after repairs and engineering changes or after controller configuration changes Controller maintenance is independent of...

Page 74: ...6 2 IBM 3745 Models 130 150 170 Introduction...

Page 75: ...ated DCE problem cannot be solved through this process the user should call the appropriate maintenance organization for example the IBM Hardware Support Center HSC in the U S A or the IBM Hardware Ce...

Page 76: ...rily or permanently authorized through a password defined by the user RSF is a helpful mechanism for solving problems without on site intervention of an IBM service representative It allows The RETAIN...

Page 77: ...e on request assistance to the user for starting the network These instructions include the following steps 1 Setting the operating characteristics of the local console and if installed the other cons...

Page 78: ...3745 130 150 170 General Data Flow 6 6 IBM 3745 Models 130 150 170 Introduction...

Page 79: ...heir direct attached nonclocked DTEs Note A 3725 3720 or 3745 model 210 310 410 or 610 may be locally attached to a 3745 130 150 170 low speed scanner as for any other DTE at speeds up to 245 760 kbps...

Page 80: ...4800 9600 19 200 38 400 and 55 855 bps With SDLC only 245 760 bps is also allowed EXTERNAL Mode The EXTERNAL clocking mode does not activate the ICF since the DCE provides the transmit and receive cl...

Page 81: ...work adapter in remote attachment mode Direct Attachment Speed Selection By SSP at generation time NCP Parameters CLOCKING DIRECT SPEED xxx Speeds Synchronous SDLC or HDLC 0 24576 Mbps 1 47456 Mbps 1...

Page 82: ...A 4 IBM 3745 Models 130 150 170 Introduction...

Page 83: ...circuit terminating equipment DCI direct current interlock DDS digital data service DII disk IPL information DMA direct memory access DSU data service unit DTE data terminal equipment EAC Ethernet ad...

Page 84: ...work Extension Facility NMVT network management vector transport NPM NetView Performance Monitor NPSI X 25 NCP Packet Switching Interface NRF Network Routing Facility ns nanosecond NSI Non SNA Interco...

Page 85: ...e Extended Advanced Functions VSE SP Virtual Storage Extended System Product VTAM Advanced Communications Function for the Virtual Telecommunications Access Method V 22 CCITT V 22 recommendation V 22...

Page 86: ...X 4 IBM 3745 Models 130 150 170 Introduction...

Page 87: ...t interleaves bytes of data See also block multiplexer channel Contrast with selector channel cache A high speed buffer storage that contains frequently accessed instructions and data and currently pr...

Page 88: ...ta Adapter Unit an IBM 2702 Transmission Control an IBM 2703 Transmission Control or an IBM 3705 Communication Controller error recovery The process of correcting or bypassing the effects of a fault t...

Page 89: ...f data See also byte multiplexer block multiplexer multiplexing The division of a transmission facility into two or more channels by allocating the common channel to several different channels one at...

Page 90: ...hed line Synchronous Data Link Control SDLC A discipline for managing synchronous code transparent serial by bit information transfer over a link connection Transmission exchanges may be duplex or hal...

Page 91: ...X 20 bis 21 21 bis 21 native 24 25 CCITT recommendations on transmission interfaces Glossary X 9...

Page 92: ...X 10 IBM 3745 Models 130 150 170 Introduction...

Page 93: ...rom the 3745 operator console Advanced Operations Guide SA33 0097 Remote Loading Activation Guide SA33 0161 Managing problems To perform problem determination Problem Determination Guide SA33 0096 Fin...

Page 94: ...X 12 IBM 3745 Models 130 150 170 Introduction...

Page 95: ...installation 6 5 CCU configuration 4 30 description 4 2 functions 5 6 modes of operation 4 30 recovery 5 4 CDF 4 30 channel adapter attachment 4 3 block multiplexer channel 4 3 byte multiplexer chann...

Page 96: ...ization CCU 4 27 channel adapter 4 27 initialization continued controller 4 31 MOSS 4 27 scanner 4 27 INOP message 5 3 installation 6 5 integration network characteristics 6 5 IOC bus description 4 3...

Page 97: ...6 protocol data streaming CA 4 4 R reactivation resource 5 4 RECFMS 5 3 recovery from CCU failure 5 4 from hardware failure 5 1 from line failure 5 4 from microcode failure 5 1 from MOSS failure 5 4 r...

Page 98: ...mode asynchronous A 1 synchronous A 1 TRSS 4 6 4 18 TSS 4 6 4 7 two processor switch See TPS U upgrading the 3745 6 5 usability highlights 2 2 utility program 4 28 V V 25 bis 4 12 VTAM 3 6 W wrap test...

Page 99: ...owing pages are detachable in order to make foils for internal presentations by the network specialists to the various customer departments The customer is authorized to reproduce these pages for its...

Page 100: ...X 18 IBM 3745 Models 130 150 170 Introduction...

Page 101: ...ncerning this book We will greatly appreciate them and will consider them for later releases of the present book If you prefer sending comments by FAX or electronically use FAX 33 4 93 24 77 97 E mail...

Page 102: ...s We d Like to Hear from You GA33 0138 2 IBM Fold and Tape Please do not staple Fold and Tape PLACE POSTAGE STAMP HERE IBM France Centre d Etudes et Recherches Service 0798 BP 79 06610 La Gaude France...

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