Troubleshooting Terminal, Printer, and Serial Device Connections HP 3000 MPE/iX Computer Systems Edition 4 Customer Order Number 32022-61002 32022-90030 E1093 Printed in: U.S.A.
Notice The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability or fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for direct, indirect, special, incidental or consequential damages in connection with the furnishing or use of this material.
Contents Skills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Guide To This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Helpful Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1. General Information Datacommunications and Terminal Subsystem (DTS) . . . . . . . . . . . . Datacommunications and Terminal Controller . . . . . . . . . . . . . . . .
Contents Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DI[AG] PR[INT] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DU[MP] V[C] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents S[TATUS] PO[RT] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S[TATUS] SN[P] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures Figure 1-1 . Datacommunications and Terminal Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Figure 1-2 . ThinLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Figure 1-3 . ThickLAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Figure 1-4 . 10Base-T Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures 8
Tables Table 3-1. Security Levels for TermDSM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface This manual documents functionality for the MPE/iX release for HP 3000 Series 900. This manual is designed to aid the troubleshooting of device connections. Information and strategies for troubleshooting networking environments is provided. TermDSM is a utility program used to troubleshoot: • Terminal connections. • Printer connections. • Other serial device connections. This manual only covers troubleshooting connections for host-based management (i.e.
Guide To This Manual Troubleshooting Terminal, Printer, and Serial Device Connections is divided into the following chapters and appendixes: • Chapter 1, “General Information,” presents an overview of the troubleshooting environment. • Chapter 2, “Troubleshooting Procedures,” gives information and suggests troubleshooting strategies. • Chapter 3, “Introduction to TermDSM,” introduces the TermDSM utility program and lists the steps to start it.
1 General Information This manual addresses troubleshooting from a host (and host-based management) perspective. For troubleshooting information related to PC-based management, see the Using HP OpenView DTC Manager manual as well as other manuals referenced earlier in this book. This chapter provides a description of the hardware and software components of the Datacommunications and Terminal Subsystem (DTS).
General Information Datacommunications and Terminal Subsystem (DTS) Datacommunications and Terminal Subsystem (DTS) With the exception of the system console which has its own access port, all asynchronous serial devices can be connected to HP 3000 Series 900 computers through the Datacommunications and Terminal Subsystem (DTS).
General Information Datacommunications and Terminal Subsystem (DTS) Each HP 2345B DTC (DTC 48) can provide connections for up to 48 local devices, 36 remote devices using modems, or a combination of both. For the DTC 48, up to three of the DTC’s slots can contain a DTC/X.25 Network Access card. This card provides access to X.25 networks, and can be used to connect asynchronous devices through PAD connections.
General Information Datacommunications and Terminal Subsystem (DTS) The DTC is controlled by software that is downloaded by its host system at boot time or by the OpenView Windows Workstation, depending on the type of management used. Systems can use either host-based management or PC-based management. Refer to Configuring Systems for Terminals, Printers and Other Serial Devices for more information on host-based management and PC-based management.
General Information Datacommunications and Terminal Subsystem (DTS) LAN. You can connect up to three segments of the cable with two repeaters, thus extending the length of the LAN 555 meters. Figure 1-2 shows a configuration using ThinLAN. Figure 1-2 ThinLAN Configuration ThickLAN Connection The second version of the LAN cable, ThickLAN (Type 10 BASE 5) offers maximum connection lengths of up to 500 meters (1600 feet), and supports up to 100 nodes.
General Information Datacommunications and Terminal Subsystem (DTS) Figure 1-3 ThickLAN Configuration 10Base-T Figure 1-4 shows that 10Base-T is a star topology and offers a third way to lay out your Ethernet network. 10Base-T offers maximum connection lengths of up to 200 meters of unshielded twisted pair per segment and supports up to 12 workstations per HUB. You can connect multiple HUBs to the LAN with an Ethernet performance of 10 Mbps.
General Information Datacommunications and Terminal Subsystem (DTS) Figure 1-4 10Base-T Configuration ASC Software The Asynchronous Serial Communications (ASC) software controls the DTS hardware. It provides the interface between the IEEE 802.3 LAN and the MPE/iX operating system. The software is included with the MPE/iX Fundamental Operating System (FOS). The MPE/iX system tracks all of the devices connected to it by means of configuration files.
General Information Powerfail Recovery Powerfail Recovery DTC powerfail recovery works for direct-connect nailed sessions using character mode. The system also attempts to recover direct-connect sessions using block mode; however, this might not be successful if the powerfail has affected terminal configuration. This is especially true for VPLUS applications. In the event of a DTC powerfail, some data loss might occur. Data buffered in the DTC at the time of the powerfail is not recoverable.
General Information Troubleshooting Responsibilities Troubleshooting Responsibilities Many problems encountered with terminals and serial printers can be solved by the end user. Even more can be solved by a system manager. If the system manager cannot solve a problem, they should contact an HP support representative. Each of the above groups has a specific role to play in the troubleshooting process. Each person needs to fulfill this role for troubleshooting to be completed quickly.
General Information Troubleshooting Responsibilities • Check each device that is malfunctioning. • Check configuration values for the malfunctioning devices. • Perform a modem check (if modems are used). • Run TermDSM to collect more information. At this point, it is usually possible to return specific devices or the whole subsystem to a state where new sessions can be started and new device opens can occur. Not all of the above steps are necessary each time.
2 Troubleshooting Procedures Recall that, in this manual, “serial device” refers to any of the following DTC connected devices: • Terminals. • Serial printers. • PCs (in terminal emulation mode). • Plotters. Serial device problems can be caused by the system, by application software, by faults within the device or DTC connections, or by the LAN hardware. Procedures for troubleshooting all possible faults are beyond the scope of this manual.
Troubleshooting Procedures Troubleshooting Pathway Troubleshooting Pathway A practiced method for problem resolution is to first identify the problem and then identify alternative causes of that problem. Break the big problem into smaller, more manageable components. By breaking the problem into manageable and testable components, the cause can be easily isolated. A recommended troubleshooting pathway is shown in Figure 2-1.
Troubleshooting Procedures Troubleshooting Pathway problem is system-wide. The verifications require no particular expertise; they are appropriate for general users. After this, it will be clear if more detailed device, DTC, or LAN testing is needed. 2. Testing DTC-Device Connections. If necessary, use TermDSM for more detailed diagnostics. This must be done at another device or the console. Test DTC-device connections first.
Troubleshooting Procedures Troubleshooting the Device Troubleshooting the Device Most problems can be diagnosed and/or resolved quickly at the device (terminal or serial printer). It’s best to do simple verifications before using TermDSM for more involved diagnostics. First, note the following: • How many devices are affected? • Which devices are affected? The number and proximity of devices affected provides a clue to the cause. If all devices are affected, the fault is likely to be with the system.
Troubleshooting Procedures Testing DTC Device Connections Testing DTC Device Connections This section applies if only one device is affected and simple causes have been ruled out. In this case, it is appropriate to use TermDSM for more detailed diagnostics. This must be done from another terminal or the console. TermDSM is part of the Online Diagnostic Subsystem. The diagnostics in this section require security level 2 (SM, DI, or OP capability).
Troubleshooting Procedures Testing DTC Device Connections Your choice of test will depend on: • The type of device you are testing (supported or unsupported; terminal or printer). • The availability of the appropriate loopback connector. The tests can be used individually, or they can be used together to systematically isolate the fault. If used together, the following are recommended test sequences.
Troubleshooting Procedures Testing DTC Device Connections • If the test fails, the fault is in the DTC (refer to “Testing the DTC” later in this chapter). • If the test passes, do the Print-to-Port Test. 3. Print-to-Port Test. • If the test fails, the fault is in the device or the device cable. • If the test passes, the fault is in the inbound data path of the device or in the device cable.
Troubleshooting Procedures Testing the DTC Testing the DTC If the DTC is suspected as the cause, TermDSM can be used to determine the hardware or software component involved. It also provides DTC dump and reset functions. CAUTION TermDSM functions described in this section cause all sessions on the DTC to abort. Data for each session can be lost. Verify that users are logged off before attempting these tests. Security level 1 (SM or DI capability) is required for the following functions.
Troubleshooting Procedures Testing the LAN Testing the LAN If system, device, and DTC faults are ruled out as the cause of the problem, LAN hardware is suspect. LAN hardware troubleshooting is beyond the scope of this manual. Contact your HP support representative.
Troubleshooting Procedures Testing the LAN 32 Chapter 2
3 Introduction to TermDSM TermDSM (Terminal Online Diagnostic/Support Monitor) is a utility program for host-based management that provides various diagnostic services for terminal and serial printer connections on systems of the HP 3000 Series 900 computer family. It is patterned after the MPE V utility of the same name. Typically, TermDSM is used when a problem is suspected with one or more terminals, printers, or other serial devices; the problem can be related to hardware or software.
Introduction to TermDSM TermDSM Requirements TermDSM Requirements The following hardware is required when using TermDSM: • The minimal mainframe configuration of a HP 3000 Series 900 computer. • The system and each DTC connected and configured as nodes on the LAN. • At least one pair of serial interface/connector cards installed in each DTC, with at least one port of each connector card connected to an asynchronous device.
Introduction to TermDSM TermDSM Requirements NOTE Users without any of the above capabilities cannot use TermDSM. A Word of Caution Some TermDSM commands abort sessions and can cause a loss of data. If used incorrectly, the commands can unnecessarily disrupt or abort user sessions. If more than one user is running TermDSM, it is not advisable for one user of TermDSM to reset another user of TermDSM. (The user’s port, ldev, SIC, or DTC should not be reset.
Introduction to TermDSM TermDSM Functionality TermDSM Functionality TermDSM is a command-based utility program which allows you to monitor and troubleshoot the DTS. It is set up so that you can monitor the condition of a single device or an entire DTC. TermDSM provides several specific functions. Some commands provide only information, such as a listing of all the DTCs associated with the system or the internal configuration information of any DTC.
Introduction to TermDSM TermDSM Commands TermDSM Commands Troubleshooting tasks are accomplished through a set of commands. Each command and its basic functionality is as follows: • C[OMMENT] is used to type informational comments for reference later. The security level of this command is 2. • DI[AG] allows several diagnostic functions to be run on a port. It is also used to initiate a DTC selftest. The security level of this command is 1 for the DTC selftest, and 2 for the individual port tests.
Introduction to TermDSM Starting TermDSM Starting TermDSM To use TermDSM, enter the SYSDIAG command at the MPE/iX prompt (:). The Diagnostic User Interface prompt appears: DUI> From this prompt, many diagnostics can be run. Type HELP to see a list.
Introduction to TermDSM Starting TermDSM The last line is the TermDSM prompt. Notice that the prompt lists all the possible commands that you can enter. The capital letters listed are the abbreviations for each command. You can stop the looping of a diagnostic function by entering [CTRL]-Y (looping is terminated after the current loop is completed).
Introduction to TermDSM Stopping TermDSM Stopping TermDSM To stop using TermDSM, enter the EXIT command at the TermDSM main prompt. The DUI prompt is displayed. Enter EXIT again to return to the MPE/iX prompt.
4 TermDSM Commands This chapter provides complete descriptions of the TermDSM commands. Commands are listed in alphabetical order for your convenience. Each command description uses the same format: 1. Command Name. 2. Purpose of Command. 3. Security Level. 4. Syntax of the command’s functions. 5. Parameter descriptions (if the command has parameters). 6. Description. This provides an explanation of the command's functions and details not listed in the individual parameter descriptions. 7.
TermDSM Commands C[OMMENT] C[OMMENT] Allows you to enter a line of information on the terminal screen. Security level: 2. Syntax C[OMMENT] commenttext Parameter commenttext Any string of alphanumeric characters. Description This command is used to make informational comments regarding what you are currently doing in TermDSM. If you are keeping a hardcopy record of everything that you are typing in at your terminal, you will want to type in any information that you feel will be useful to you later.
TermDSM Commands DI[AG] DI[AG] Determines if the DTC hardware or the connections from a DTC to its devices are functioning properly. Security level: 1 for DTC selftest; 2 for remaining diagnostic functions.
TermDSM Commands DI[AG] EXT[ERNAL] DI[AG] EXT[ERNAL] Determines if a specific port is functioning properly , including the connector. Sends data out and reads it immediately, verifying that the data received is exactly what was sent. DIAG EXTERNAL is available for DTC 16s and DTC 48s only. Security level: 2. Syntax EXT[ERNAL] dtcnum,cardnum,portnum Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number.
TermDSM Commands DI[AG] EXT[ERNAL] Any time that you want to stop the diagnostic, press [CTRL]-Y. The diagnostics prompt will be printed and you will be allowed to enter another subcommand. If TermDSM knows that this test has failed, an error message will be printed listing the reason for the failure and how many milliseconds the test ran before failing. The diagnostics prompt will be printed and you will be allowed to enter another subcommand.
TermDSM Commands DI[AG] I[NTERNAL] DI[AG] I[NTERNAL] Determines if a specific port is functioning properly without disconnecting the device from the port. Security level: 2. Syntax I[NTERNAL] dtcnum,cardnum,portnum Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number.
TermDSM Commands DI[AG] I[NTERNAL] Any time that you want to stop the diagnostic, press [CTRL]-Y. The diagnostics prompt will be printed and you will be allowed to enter another subcommand. If TermDSM knows that this test has failed, an error message will be printed listing the reason for the failure and how many milliseconds the test ran before failing. The diagnostics prompt will be printed and you will be allowed to enter another subcommand.
TermDSM Commands DI[AG] PR[INT] DI[AG] PR[INT] Determines if the connection between a DTC and one of its devices is functioning properly by printing to the device. Security level: 2. Syntax PR[INT] dtcnum,cardnum,portnum Parameters CAUTION dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number.
TermDSM Commands DI[AG] PR[INT] You should then enter how many times you want to run the print operation. Enter a number between 1 and 65535. Then the following is displayed: Type CONTROL_Y to stop the looping. Any time that you want to stop the diagnostic, press [CTRL]-Y. The diagnostics prompt will be printed and you will be allowed to enter another subcommand.
TermDSM Commands DI[AG] SE[LFTEST] DI[AG] SE[LFTEST] Determines if the hardware of a particular DTC is functioning properly. Security level: 1. Syntax SE[LFTEST] dtcnum Parameter dtcnum CAUTION The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number. This subcommand aborts all sessions on the DTC under test. Data for those sessions may be lost.
TermDSM Commands DI[AG] SE[LFTEST] The Selftest subcommand causes a complete DTC selftest to be run. This selftest includes the selftests for each of the interface cards within the DTC, and a download of the DTC across the LAN. Any jobs or sessions that are running on devices connected to the DTC are aborted. Each loop of the Selftest subcommand is functionally identical to the RESET DTC subcommand.
TermDSM Commands DI[AG] T[ERMINAL] DI[AG] T[ERMINAL] Determines if the connection between a DTC port and a terminal is functioning properly. TermDSM writes a line of characters to the terminal and orders it to send that line back. TermDSM then compares the characters received with those sent. Security level: 2. Syntax T[ERMINAL] dtcnum,cardnum,portnum Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number.
TermDSM Commands DI[AG] T[ERMINAL] Any time that you want to stop the diagnostic, press [CTRL]-Y. The diagnostics prompt will be printed and you will be allowed to enter another subcommand. This diagnostic function tests the connection between the DTC port up to and including some terminal functions. (It is not a thorough terminal test.) It does this by writing a string of characters to the terminal and ordering the terminal to send those characters back for comparison.
TermDSM Commands DI[AG] XI[NTERNAL] DI[AG] XI[NTERNAL] Determines if the SNP hardware is functioning properly. The internal loopback test is executed only if the SNP is not started. No external connections are required. Security level: 2. Syntax XI[NTERNAL] dtcnum,cardnum Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number.
TermDSM Commands DI[AG] XI[NTERNAL] If TermDSM knows that this test has failed, an error message will be printed listing the reason for the failure and how many milliseconds the test ran before failing. The diagnostics prompt will be printed and you will be allowed to enter another subcommand.
TermDSM Commands DI[AG] XE[XTERNAL] DI[AG] XE[XTERNAL] Determines if the SNP hardware and the physical connection is functioning properly. The external loopback test is executed only if the SNP is not started. External connections are required only for the V.35, the V.36, and the RS-422 interface. (External loopback is not available for the DTC 72MX.) Security level: 2. Syntax XE[XTERNAL] dtcnum,cardnum Parameters dtcnum The number TermDSM associates with a particular DTC.
TermDSM Commands DI[AG] XE[XTERNAL] Type CONTROL - Y to stop the looping. You can use subsystem break (normally [CTRL]-Y to stop the diagnostic at any time. The diagnostics prompt will be printed and you will be allowed to enter another subcommand. If TermDSM knows that this test has failed, an error message will be printed listing the reason for the failure and how many milliseconds the test ran before failing. The diagnostics prompt will be printed and you will be allowed to enter another subcommand.
TermDSM Commands DI[AG] XN[ETWORK] DI[AG] XN[ETWORK] Determines if the connection to the network is functioning properly. This test is executed only if the SNP is not started. Security level: 2. Syntax XN[ETWORK] dtcnum,cardnum, destination address Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number.
TermDSM Commands DI[AG] XN[ETWORK] How many times do you want to repeat this operation? Enter the number of times you want to run this diagnostic function. Enter a number between 1 and 65535. The following is then printed on the terminal: Type CONTROL - Y to stop the looping. You can use subsystem break (normally [CTRL]-Y to stop the diagnostic at any time. The diagnostics prompt will be printed and you will be allowed to enter another subcommand.
TermDSM Commands DT[C] DT[C] Lists each DTC assigned to the system and displays the number that TermDSM has assigned to each DTC. Security level: 2.
TermDSM Commands DU[MP] DU[MP] Captures data pertaining to a particular port, asynchronous processor board (mux card of a DTC 72MX), DTC, or logical device number and writes it to a disk file. Security level: 1 for DTC dump; 2 for remaining dump functions.
TermDSM Commands DU[MP] If you need the information in the dump analyzed, send it to your HP representative on magnetic tape. Information written to a disk file for this type of dump will appear in two forms: • A hexadecimal listing of all data. • The ASCII representation of each byte of that data. The file will also contain: • The day and time of the dump. • The type of dump (logical device number or port). • Headings before each of the major areas of dump information.
TermDSM Commands DU[MP] DT[C] DU[MP] DT[C] Captures data pertaining to a particular DTC and writes it to a disk file. Security level: 1. Syntax DT[C] dtcnum Parameter dtcnum CAUTION The number TermDSM associated with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number. This subcommand resets all sessions on the DTC under test.
TermDSM Commands DU[MP] DT[C] This numbering system allows you to create many dump files in one day and to later know on what day each dump was created by simply looking at the file name. If you need to send dump information to HP to have it analyzed, make sure that you send both dump files. NOTE If all 26 (suffix A through Z) DTC dump files already exist, one will be overwritten by the current DTC dump.
TermDSM Commands DU[MP] L[DEV] DU[MP] L[DEV] Captures data pertaining to a specific logical device number and writes it to a disk file. Security level: 2. Syntax L[DEV] ldevnum Parameter ldevnum The logical device number associated with the device whose data you want to dump. Description Information associated with the logical device number is dumped to a disk file. Since the ldev is also associated with a port, information pertaining to the port is also dumped.
TermDSM Commands DU[MP] M[UX] DU[MP] M[UX] Captures data pertaining to a particular asynchronous processor board (mux card) of a DTC 72MX to a disk file. This command is supported for DTC 72MX only. Security level: 2. Syntax M[UX] dtcnum, boardnum Parameters dtcnum Number of the DTC to which the board is installed. This is the number TermDSM associates with this DTC. boardnum Number of the asynchronous processor board (mux card) within the DTC 72MX.
TermDSM Commands DU[MP] PO[RT] DU[MP] PO[RT] Captures data pertaining to a particular port and writes it to a disk file. Security level: 2. Syntax PO[RT] dtcnum,cardnum,portnum Parameters dtcnum Number of the DTC to which the device is connected. This is the number TermDSM associates with this DTC. cardnum Number of the interface card within the DTC to which the device is connected. The cards are numbered from zero beginning at the bottom of the DTC. portnum Number of the port on the interface card.
TermDSM Commands DU[MP] SN[P] DU[MP] SN[P] Captures data pertaining to a particular X.25 card and writes it to a disk file. Security level: 2. Syntax SN[P] dtcnum,cardnum Parameters dtcnum Number of the DTC that contains the SNP card (X.25 card). This is the number TermDSM associates with this DTC. cardnum Number of the interface card within the DTC. The cards are numbered from zero beginning at the bottom of the DTC.
TermDSM Commands DU[MP] V[C] DU[MP] V[C] Captures data pertaining to a particular VC on an X.25 card and writes it to a disk file. (If the VC you are attempting to dump is a PAD VC, you must use the Ldev option instead.) Security level: 2. Syntax V[C] dtcnum,cardnum,vcnum Parameters dtcnum Number of the DTC that contains the SNP (X.25) card. This is the number TermDSM associates with this DTC. cardnum Number of the X.25 card within the DTC.
TermDSM Commands EE[PROM] DT[C] EE[PROM] DT[C] Downloads the new ROM code on the DTC 72MX and DTC 16iX/16MX. This feature is not supported on the DTC 48 and the DTC 16. Security level: 1. Syntax DT[C] dtcnum Parameter dtcnum The number TermDSM associated with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number. CAUTION This subcommand aborts all sessions on the DTC under test.
TermDSM Commands EX[IT] EX[IT] Exits the TermDSM program and returns you to the DUI prompt.Security level: 2.
TermDSM Commands H[ELP] H[ELP] Lists information regarding TermDSM and its commands. Security level: 2.
TermDSM Commands R[ESET] R[ESET] To clear hardware and software associated with a logical device number, physical port, serial interface card, or DTC so that a new session or job can be started on each port. Security level: 1 for DTC; 2 for remaining functions. Syntax R[ESET] Description After the RESET command is entered, the following prompt is printed on the terminal: (reset) Ldev # POrt #,#,# SNp #,# Vc #,#,# SIc #,# DTc # (X.
TermDSM Commands R[ESET] DT[C] R[ESET] DT[C] Resets the hardware of a particular DTC or group of DTCs. Security level: 1. Syntax DT[C] dtcnums Parameter dtcnums The DTC number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned DTC number. You may also reset multiple DTCs with one RESET DTC command. The first command below resets DTC 3, 5, and 9. The second command resets DTCs 4 through 15, inclusive. These two commands are typed at the RESET subcommand prompt.
TermDSM Commands R[ESET] DT[C] If the selftest completes successfully, the results of each of the card selftests will be displayed. Refer to the SIC subcommand for the explanation of these results. The DTC software is then downloaded to the DTC so that users may again use devices connected to the DTC. If you are running TermDSM at the system console, you will receive informational messages relating to this download. You will then be returned to the reset prompt and may enter another RESET subcommand.
TermDSM Commands R[ESET] L[DEV] R[ESET] L[DEV] Clears the software associated with a particular logical device number (and its associated port) so that the associated device may be used again. Security level: 2. Syntax L[DEV] ldevnum Parameter ldevnum The logical device number associated with the connection you want to reset. Description This subcommand also resets the port associated with this ldev number. Also, any session or job running on the device is aborted.
TermDSM Commands R[ESET] PO[RT] R[ESET] PO[RT] Clears the software associated with a particular port so that the associated device can be used again.Security level: 2. Syntax PO[RT] dtcnum,cardnum,portnum Parameters dtcnum Number of the DTC to which the device is connected. This is the number TermDSM associates with this DTC. cardnum Number of the interface card within the DTC to which the device is connected.
TermDSM Commands R[ESET] SI[C] R[ESET] SI[C] Resets all ports of a specific Serial Interface Card in a specific DTC. Security level: 2. Syntax SI[C] dtcnum,cardnum Parameters dtcnum Number of the DTC to which the device is connected. This is the number TermDSM associates with this DTC. cardnum Number of the interface card within the DTC to which the device is connected. The cards are numbered from zero beginning at the bottom of the DTC.
TermDSM Commands R[ESET] SN[P] R[ESET] SN[P] Resets the specific X.25 card in a specific DTC. Security level: 2. Syntax SN[P] dtcnum,cardnum Parameters dtcnum Number of the DTC that contains the X.25 (SNP) card. This is the number TermDSM associates with this DTC. cardnum Number of the interface card within the DTC. The cards are numbered from zero beginning at the bottom of the DTC. (Note that SNP cards may not be mounted in slot 0 or 1 for DTC 16, and slot 0 for DTC 48.
TermDSM Commands R[ESET] V[C] R[ESET] V[C] Resets the specific VC on an X.25 card in a specific DTC. (If the VC you are attempting to dump is a PAD VC, you must use the Ldev option instead.) Security level: 2. Syntax V[C] dtcnum,cardnum,vcnum Parameters dtcnum Number of the DTC that contains the X.25 card (SNP). This is the number TermDSM associates with this DTC. cardnum Number of the X.25 card within the DTC. The cards are numbered from zero beginning at the bottom of the DTC.
TermDSM Commands S[TATUS] S[TATUS] Obtains information about DTC or port configuration and the state of the DTC or port. Security level: 2. Syntax S[TATUS] Description After the STATUS command is entered, the following prompt is printed on the terminal: (status) DTc # POrt #,#,# SNp #,#,# X.25 options - 1:Global, 2:level2, 3:level3, 4:PAD) Vc #,#,# (carriage return to exit) ? These are the subcommands that can then be entered. The following pages describe these two options.
TermDSM Commands S[TATUS] DT[C] S[TATUS] DT[C] Obtains configuration and status information about a particular DTC. Security level: 2. Syntax DT[C] dtcnum Parameter dtcnum This is the number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This is also printed when you make a mistake while typing in a DTC number. Description When this subcommand is entered, a large amount of information related to the DTC is printed on the terminal.
TermDSM Commands S[TATUS] DT[C] The remaining fields provide a detailed record of DTC events. They tell what events are being logged (by MPE/iX) and list event frequencies. This information can be used by HP support representatives for detailed diagnosis of DTC problems. Further explanation of these fields is beyond the scope of this manual.
TermDSM Commands S[TATUS] PO[RT] S[TATUS] PO[RT] Obtains status information about a particular port. Security level: 2. Syntax PO[RT] dtcnum,cardnum,portnum Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number. cardnum Number of the interface card within the DTC to which the device is connected.
TermDSM Commands S[TATUS] PO[RT] • Connected. The port is connected to an MPE/iX system. • Disconnect from AFCP Pending. MPE/iX has requested and is awaiting disconnection from the port. • Disconnect from DIODAM Pending. Device has requested and is awaiting disconnection from MPE/iX. • Bad. The port has failed its selftest, or this is a non-existent port on the SIC. The remaining fields contain detailed diagnostics information for use by HP support representatives.
TermDSM Commands S[TATUS] SN[P] S[TATUS] SN[P] Obtains status information about a particular X.25 card. Security level: 2. Syntax SN[P] dtcnum,cardnum,optionnum Parameters dtcnum Number of the DTC that contains the X.25 (SNP) card. This is the number TermDSM associates with this DTC. cardnum Number of the X.25 card within the DTC. The cards are numbered from zero beginning at the bottom of the DTC. (Note that SNP cards may not be mounted in slot 0 or 1 for DTC 16, and slot 0 for DTC 48.
TermDSM Commands S[TATUS] V[C] S[TATUS] V[C] Obtains status information about a particular VC on an X.25 card. Security level: 2. Syntax V[C] dtcnum,cardnum,vcnum Parameters dtcnum Number of the DTC that contains the X.25 (SNP) card. This is the number TermDSM associates with this DTC. cardnum Number of the X.25 card within the DTC. The cards are numbered from zero beginning at the bottom of the DTC. (Note that SNP cards may not be mounted in slot 0 or 1 for DTC 16, and slot 0 for DTC 48.
TermDSM Commands T[RACE] T[RACE] Turns on a trace for a specific port on an asynchronous processor board of a DTC 72MX or a specific VC, level 2, or level 3 on an X.25 card (for a DTC 16, DTC 48, or DTC 72MX). Security level: 2. Syntax T[RACE] Description After the command is entered, the following prompt is printed on the terminal: (TIO or X25) TIo X25 (carriage return to exit) ? TIO specifies tracing on a selected port of an asynchronous processor board (mux card) of a DTC 72MX.
TermDSM Commands T[RACE] TI[O] T[RACE] TI[O] Specifies tracing on a selected asynchronous port of a DTC 72MX. TRACE TIO is not supported for ports on DTC 16s or DTC 48s. Security level: 2 Syntax T[RACE] TI[O] Description After the command is entered, the following prompt is printed on the terminal: (tio trace) TRACEON #, #, # TRACEOFf #, # TRACEShow # (carriage return to exit) ? These are the subcommands that can then be entered. The following pages describes these options.
TermDSM Commands T[RACE] TI[O] TRACEON T[RACE] TI[O] TRACEON Starts extended tracing on a selected port of an asynchronous processor board in a DTC 72MX. Security level: 2 Syntax TRACEON dtcnum, boardnum, portnum Parameters dtcnum The number TermDSM associates with a particular DTC. The DTC command lists each DTC with its assigned number. This list is also printed when you make a mistake while typing in a DTC number.
TermDSM Commands T[RACE] TI[O] TRACEOF[F] T[RACE] TI[O] TRACEOF[F] Turns off extended tracing of an asynchronous port on a DTC 72MX.Security level : 2. Syntax TRACEOF[F] dtcnum, boardnum Parameters dtcnum Number of the DTC that contains the asynchronous board with a port that is being traced. This is the number TermDSM associates with this DTC. boardnum Number of the asynchronous board that contains the port being traced. Description TRACEOFF turns off extended trace on a port.
TermDSM Commands T[RACE] TI[O] TRACES[HOW] T[RACE] TI[O] TRACES[HOW] Lists all the ports on the specified DTC 72MX that currently have extended tracing on. Security level: 2. Syntax TRACES[HOW] dtcnum Parameter dtcnum 92 Number of the DTC 72MX that has extended tracing on for one or more of its asynchronous processor boards. This is the number TermDSM associates with this DTC.
TermDSM Commands T[RACE] X2[5] T[RACE] X2[5] Specifies tracing for a particular VC on an X.25 card on a DTC 16, DTC 48, or DTC 72MX. Security level: 2. Syntax T[RACE] X2[5] Description After the command is entered, the following prompt is printed on the terminal: (X25 trace) TRACEON #, #, # TRACEOFf (carriage return to exit) ? TRACEON and TRACEOFF are subcommands that can be entered with the TRACE X25 command. The following pages describes these options. When you specify tracing on an X.
TermDSM Commands T[RACE] X2[5] TRACEON T[RACE] X2[5] TRACEON Turns on a trace for a particular VC on an X.25 card. Security level: 2. Syntax TRACEON dtcnum,cardnum,traceoption Parameters dtcnum Number of the DTC that contains the DTC/X.25 Network Access card (SNP). This is the number TermDSM associates with this DTC. cardnum Number of the SNP card within the DTC. The cards are numbered from zero beginning at the bottom of the DTC.
TermDSM Commands T[RACE] X2[5] TRACEON Enter HDr if you want only header information (including TCP/IP headers) included in the trace. Enter FUll if you want full packet information included in the trace. You will then be prompted to enter a trace file name, as follows: (Filename) Please enter a filename for the X.25 trace or press carriage return to use the default (TRACE.PUB.SYS). Trace file will be kept in PUB.SYS.
TermDSM Commands T[RACE] X2[5] TRACEON Enter PAd to trace PAD VCs only, enter SYs to trace system-to-system VCs only, enter All to trace both PAD and system-to-system VCs. You will then be asked to enter the link name, as follows: (linkname) Please enter the linkname for level 3 trace (carriage return to exit) ? Enter the link name of the X.25 link as configured in NMMGR. The link name may be up to eight (8) ASCII characters.
TermDSM Commands T[RACE] X2[5] TRACEOF[F] T[RACE] X2[5] TRACEOF[F] Turns off a trace for a VC, level 2, or level 3 on an X.25 card. Security level: 2. Syntax TRACEOF[F] Description Turns off the trace activated through a previous TRACEON command. Since only one trace can be active at a time, this command does not require any parameters.
TermDSM Commands T[RACE] X2[5] TRACEOF[F] 98 Chapter 4
A TermDSM Messages MESSAGE: You have entered an unknown or incorrect command. Please try again. (TDSM 15) (TDSM 15) CAUSE: You have entered something that is not a TermDSM command or a command that is not valid in this context. ACTION: Commands that are valid at this time are listed in the prompt. Please try again. Type HELP or refer to Chapter 4, “TermDSM Commands,” for more information. MESSAGE: TermDSM has compiled without $partial eval$ in effect. It cannot continue.
TermDSM Messages ACTION: Enter a valid ldev number. Note that you can also use the POrt subcommand. MESSAGE: The ldev number is missing or invalid. Ldev numbers are positive integers. (TDSM 21) (TDSM 21) CAUSE: The logical device number was not entered or is unrecognizable. ACTION: Enter a valid ldev number. Note that you can also use the POrt subcommand. MESSAGE: You have entered an invalid SIC card number. SIC card numbers range from 0 to 5.
TermDSM Messages ACTION: Delete some files beginning with the file called TRMdddAA since this is the oldest file. Note that if all files for this Julian date already exist, there are over 600 dump files for today. You can delete most of these files. MESSAGE: Your security level (3) is too low to take dumps. Please log on with level 2 security to dump ports, or level 1 security to dump ports and DTCs. (TDSM 32) For level 1, you need SM or DI capability. For level 2, you need SM or DI or OP capability.
TermDSM Messages The override facility is provided for the case where a terminal running TermDSM is hung and therefore cannot exit the program. Note that if one TermDSM user resets the port of another TermDSM user, this can cause the system to go down. MESSAGE: No ldevs seem to be configured on your system. (TDSM 36) (TDSM 36) CAUSE: Necessary configuration information does not exist on the system. ACTION: Make sure the file NMCONFIG.PUB.SYS exists.
TermDSM Messages ACTION: Move to a terminal on another DTC or the system console to run TermDSM. MESSAGE: Warning: This will reset all users on that DTC. (TDSM 44) (TDSM 44) CAUSE: If you continue, all user sessions on this DTC will be aborted. ACTION: If you want to continue, you should alert all the users that their sessions will be aborted. MESSAGE: Warning: This will reset all users on that SNP. As many as 256 virtual circuits could be affected.
TermDSM Messages MESSAGE: Your answer must be at least 1 and no more than 65535. (TDSM 56) (TDSM 56) CAUSE: The value entered is not in the range 1 to 65535. ACTION: Enter a value in the range. Diagnostic loop counts are limited to this range. MESSAGE: Please deliver the following SNP dump to your HP representative. (TDSM 63) (TDSM 63) CAUSE: Informational message.
TermDSM Messages MESSAGE: You can’t reset your own port or ldev. Please run TermDSM from a different port or ldev to do this. (TDSM 80) (TDSM 80) CAUSE: Verify the ldev numbers entered. If you want to reset a port, you cannot be logged on to that port; the operation will abort your session. ACTION: If you want to reset the port you are using, move to another port or the system console to run TermDSM. MESSAGE: That ldev is unknown (not configured). Please check the ldev number, or use reset port.
TermDSM Messages MESSAGE: You can’t test your own port. Please run TermDSM from another port. (TDSM 110) (TDSM 110) CAUSE: Double check the numbers entered. If you wish to test a port, you cannot be logged on to that port; the operation will abort your session and you will be unable to obtain the results of the test. ACTION: If you want to test the port to which you are logged on, move to another port or the system console to run TermDSM.
TermDSM Messages MESSAGE: You can’t reset your own SIC. Please run TermDSM from another SIC or DTC, or from the console. (TDSM 122) (TDSM 122) CAUSE: Your own session is on this SIC (serial interface card). If you wish to reset a SIC, you cannot be logged onto that card; the operation will abort your session and you will be unable to obtain the results. ACTION: Move to a port on a different DTC or SIC, or to the system console, to run TermDSM. MESSAGE: You can’t reset your own SNP.
TermDSM Messages ACTION: Contact you HP support representative. You can obtain additional information by running the card selftest (through the SIC subcommand of the TermDSM RESET command), the DTC selftest, and the DTC offline diagnostics. MESSAGE: Too many characters came back. Time = xx msec. (TDSM 219) (TDSM 219) CAUSE: More characters were returned than were sent. Someone might have pressed a key on the terminal under test, if this was a terminal loopback. Probable hardware failure.
TermDSM Messages ACTION: Contact you HP support representative. MESSAGE: No record separator in Vplus. Time = xx msec. (TDSM 226) (TDSM 226) CAUSE: Probable hardware failure. ACTION: Contact you HP support representative. You can obtain additional information by running the card selftest (through the SIC subcommand of the TermDSM RESET command), the DTC selftest, and the DTC offline diagnostics. MESSAGE: Read timeout (no data came back). Time = xx msec. If external loopback, check loopback hood.
TermDSM Messages ACTION: Reconnect the modem and try the test again. If the failure continues, or if there was no modem in use on that port, there is a probable hardware failure. Contact your HP support representative. You can obtain additional information by running the card selftest (through the SIC subcommand of the TermDSM RESET command), the DTC selftest, and the DTC offline diagnostics. MESSAGE: Console attention. Time = xx msec. (TDSM 234) (TDSM 234) CAUSE: Probable hardware failure.
TermDSM Messages MESSAGE: The TermDSM command resulted in an instruction being sent to a DTC, and the DTC did not respond. (TDSM 244) CAUSE: Timeout waiting for the DTC to respond. The DTC may be powered off, malfunctioning, or misconfigured. (TDSM 244) ACTION: Note that the DTC list printed by TermDSM is only a list of the DTCs configured, not a list of installed, powered on, and working DTCs.
TermDSM Messages ACTION: Wait for the download, or upload/download, to complete (as shown by the console messages). Verify then that the DTC is operational. If not, contact your HP support representative. MESSAGE: The DTC requested that it be dumped during the operation. (TDSM 249) (TDSM 249) CAUSE: The DTC detected an internal error at the same time you were trying to access it through TermDSM. ACTION: Wait for the download, or upload/download, to complete (as shown by the console messages).
TermDSM Messages ACTION: Contact your HP support representative. MESSAGE: Bad RMP return code received. (TDSM 261) (TDSM 261) CAUSE: Unknown error reported by the Distributed Terminal Subsystem to TermDSM. ACTION: Contact your HP support representative. MESSAGE: The DTC subsystem has reported that an error was detected. Here is the specific message: (TDSM 262) (TDSM 262) CAUSE: This is the standard message that precedes specific error messages. ACTION: Contact your HP support representative.
TermDSM Messages MESSAGE: You have entered an incorrect ROM code version.) (TDSM 268) CAUSE: Incorrect ROM code version was entered for EEPROM reprogramming. ACTION: Re-enter the correct ROM code version. MESSAGE: You have entered an incorrect ROM code version.) (TDSM 270) CAUSE: The DTC has reported that the port in question is bad or does not exist. ACTION: Note the range of ports in the error message.
TermDSM Messages MESSAGE: Dump failed: Send or Receive of dump request failed. (TDSM 281) (TDSM 281) CAUSE: An internal error. This message is written to dump files and never appears as an error message to a user. ACTION: Contact you HP support representative. MESSAGE: Dump failed: Bad function in internal error reply to dump request.(TDSM 282) (TDSM 282) CAUSE: An internal error. This message is written to dump files and never appears as an error message to a user.
TermDSM Messages MESSAGE: DTCM produced an unknown action code. (TDSM 309) (TDSM 309) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: Unable to get an outbound packet buffer. (TDSM 317) (TDSM 317) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: Unable to write to an outbound packet buffer. (TDSM 318) (TDSM 318) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: Unable to send an LLIO message.
TermDSM Messages ACTION: Verify the number that TermDSM associated with the DTC containing the DTC/X.25 XL Network Access card. Reenter the command with the correct DTC number specified. MESSAGE: Some other DTC is already tracing. (TDSM 325) (TDSM 325) CAUSE: Only one DTC can be tracing at a time. ACTION: Turn off tracing on the other DTC and try again. MESSAGE: This requested DTC is already tracing. (TDSM 326) (TDSM 326) CAUSE: Tracing has already been turned on for the specified DTC.
TermDSM Messages MESSAGE: X.25 or X.25/PADSUP not stopped. (TDSM 333) (TDSM 333) CAUSE: The operation you attempted required that X.25 or X.25/PADSUP be stopped and it was still running. ACTION: Start up X.25 on the specified card and try again or specify a card that has X.25 started. MESSAGE: DTCM reports unexpected SIC UPLOAD request. (TDSM 334) (TDSM 334) CAUSE: Internal error. ACTION: Contact your HP representative. MESSAGE: This port is already under extended trace.
TermDSM Messages MESSAGE: This is not a MUX board. (TDSM 340) (TDSM 340) CAUSE: A TermDSM command that is only valid for asynchronous processor boards (MUX board) on DTC 72MX is issued against a wrong type of card. ACTION: Verify that you have specified the right DTC number and board number on the DTC. Only asynchronous processor boards on DTC 72MX can accept this TermDSM command. MESSAGE: The DTC is not up during showtrace on a MUX board.
TermDSM Messages MESSAGE: The DTC reported an NMP bad port. (TDSM 403) (TDSM 403) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: The DTC reported an NMP loopback aborted. (TDSM 404) (TDSM 404) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: The DTC reported an NMP loopback modem error. (TDSM 405) (TDSM 405) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: The DTC reported an NMP loopback time out.
TermDSM Messages MESSAGE: The system is PC BASED. TERMDSM doesn’t support PC BASED. (TDSM 591) (TDSM 591) CAUSE: The user attempted to run TermDSM on a system managed by the OpenView DTC Manager. Such systems are said to be “PC-based,” and TermDSM is not supported on PC-based systems. ACTION: See the manual titled Using HP OpenView DTC Manager for information on obtaining diagnostic information for terminal and printer connections on PC-based systems. MESSAGE: The system is HOST BASED TIO.
TermDSM Messages For example, to execute a DUmp command for an SNP card contained in slot 3 of the DTC designated as DTC #1, you would enter the following subcommand at the DUmp subcommand prompt: SN 1,3 MESSAGE: You have entered a bad VC number. VC numbers range from 0 to 4095. (TDSM 606) (TDSM 606) CAUSE: The user entered an invalid number when asked to specify the VC number associated with the virtual circuit on which the TermDSM function is to be performed.
TermDSM Messages ACTION: Determine the correct X.25 destination address as configured on the Level 3 Configuration screen in NMMGR. Reenter the XNetwork subcommand using the correct X.25 address. For example, to perform a loopback for an SNP card contained in slot 3 of the DTC designated as DTC #1, with a destination address configured as 345678, you would enter the following subcommand at the DIag subcommand prompt: XN 1,3,345678 MESSAGE: You have entered a bad X25 status option.
TermDSM Messages MESSAGE: You have entered a bad X25 trace option. X25 trace options range from 1 to 3. (TDSM 612) (TDSM 612) CAUSE: The user entered an invalid trace option for the TermDSM TRACEON function.
TermDSM Messages MESSAGE: TRACE will be used as X25 trace filename by default. (TDSM 617) (TDSM 617) CAUSE: During execution of the TRACEON function, the user pressed the carriage return when prompted for a trace file name. ACTION: None. This message is for information only. MESSAGE: There is no TRACE in progress. (TDSM 618) (TDSM 618) CAUSE: The user entered a TRACEOFF command to stop a trace but there was no trace active. ACTION: None. This message is for information only.
TermDSM Messages ACTION: If you want to continue, you should alert all the users that their sessions will be aborted. MESSAGE: Fatal error occurred during EEPROM reprogramming process. Please contact HP representative to recover the DTC. (TDSM 638) (TDSM 638) CAUSE: Internal error. ACTION: Contact your HP support representative. MESSAGE: You have entered an invalid MUX board number. MUX board numbers range from 0 to 3.
TermDSM Messages MESSAGE: Please set up the environment for the network loopback test on the SNP card before answering the 'How may times?' question. (TDSM 701) (TDSM 701) CAUSE: Supported hardware must be present and ready before the diagnostic is run. ACTION: Make the appropriate hardware ready and continue. MESSAGE: Termdsm could not open the DTC manager, so the SNP dump could not be obtained.
TermDSM Messages MESSAGE: The call has been accepted by another node on the network. Verify the correct configuration of the X25 address. (TDSM 801) (TDSM 801) CAUSE: The user was attempting to perform a loopback test, but the connection was accepted by a different node on the network. This could happen if the X.25 address configured for loopback belongs to a different system instead of the local system. ACTION: Run NMMGR and correct the X.
Glossary A access port A special interface card in the system cabinet through which the MPE/iX system console is connected. ADCP Avesta Device Control Protocol. An HP proprietary protocol which provides device control features. ADCP is optimized for communications between a DTC and MPE/iX systems. address A numerical identifier defined and used by a particular protocol and associated software to distinguish one node from another. address key See X.25 address key.
Glossary AFCP, allowing connections from terminals on ARPA systems to HP 3000s. Attachment Unit (MAU) that connects it to the LAN in a ThickLAN configuration. ASCII American National Standard Code for Information Interchange. A character set using 7-bit code used for information interchange among data processing and data communications systems. The American implementation of International Alphabet No. 5.
Glossary binary mode A data-transfer scheme in which no special character processing is performed. All characters are considered to be data and are passed through with no control actions being taken. bit Binary digit. A unit of information that designates one of two possible states, which are represented by either 1 or 0. block mode A terminal processing mode in which groups, or “blocks,” of data are transmitted all at once.
Glossary required to adhere to a CCITT recommendation, although most do so in their own interests. CIB The channel input/output bus in the backplane of an HP 3000. circuit-switching network A type of data communications network wherein a physical and exclusive link is maintained between two communicating devices for the call duration. An all-digital, circuit-switching network is often referred to as an X.21 network. closed user group An X.
Glossary necessary for link-level and NetIPC logging. The only file name that the system recognizes is NMCONFIG.PUB.SYS. control-X echo Three exclamation marks (!!!) output to the terminal screen when the cancel character (normally [CTRL]-X) is entered. control-Y trap A user-written procedure to which control is passed when the subsystem break character (normally [CTRL]-Y) is entered during execution of a program with subsystem break enabled.
Glossary therefore allows the choice between local and end-to-end acknowledgment. DCE Data circuit-terminating equipment. The interfacing equipment required in order to interface to data terminal equipment (DTE) and its transmission circuit. Synonyms: data communications equipment, dataset. A modem is an example of a DCE. DDX The national public PSN of Japan. DDFA DTC Device File Access Utilities.
Glossary device independence A characteristic of the operating system that allows users to selectively redirect input/output from a program, session, or job without regard to the nature of the device. host-based network management, and by the PC for DTCs managed by the OpenView DTC Manager. device name See PAD name. DTC Datacommunications and Terminal Controller. The DTC is a hardware device, configured as a node on a LAN, that enables asynchronous devices to access HP 3000 Series 900 computers.
Glossary DTC 16 MX HP J2063A product. A DTC terminal server for HP 3000 and Telnet systems. It allows up to 16 asynchronous connections for the HP 3000 environment and for computer systems running ARPA, such as HP 9000s and third party systems. When managed by the HP 3000, the DTC 16MX is configured and functions exactly like a DTC 16iX. The full functionality of the DTC 16MX is only available when it is managed by the OpenView DTC Manager. DTC 16TN HP J2060A product.
Glossary DTC/X.25 Network Access The software that resides on the Datacommunications and Terminal Controller (DTC). To configure access to an X.25 network, you must configure two software components: the X.25 iX System Access (residing on the HP 3000 host and configured through use of NMMGR software), and DTC/X.25 Network Access (configured on the OpenView Windows Workstation through use of the OpenView DTC Manager software for PC-based management, and through NMMGR for host-based management). DTC/X.
Glossary desirable route for data to travel from a given local node to a remote node. entry priority In a point-to-point network, it is a ranking that identifies the most desirable route for data to travel from a given local node to a remote node. environment A session that is established on a remote node. escape from data transfer character A character that allows a user who is connected to a host system through the DTC, to break that connection and return to the DTC switching user interface.
Glossary HPFOPEN call used to open the file. It can be used to access that file until the file is closed. file specification The name and location of a file. The full specification for a file includes the file name, group, and account. full gateway A full gateway is a node that belongs to more than one network and has one IP address for each network. It uses store and forward to transfer packets between each network that it belongs to.
Glossary NMMGR interface is presented, and defaults of configurable values are used automatically. H handshaking A communications protocol between devices or between a device and the CPU. Provides a method of determining that each end of a communications link is ready to transmit or receive data, and that transmission has occurred without error. hardware handshake Uses modem signals CTS and RTS to pace the data transfer from the DTC to the attached device. (For DTC 72MX only.
Glossary a device connected to the DTC user interface that is still inactive will be disconnected. IEEE 802.3 A standard for a broadcast local area network published by the Institute for Electrical and Electronics Engineers (IEEE). This standard is used for both the ThinLAN and ThickLAN implementations of the LAN. IEEE 802.3 multicast address A hexadecimal number that identifies a set of nodes. This address is used for multicast delivery. IEEE 802.
Glossary intranet routing Intranet routing involves all the processes required to route a packet from one node in a network to another node in the same network. intrinsic A system routine accessible by user programs. It provides an interface to operating system resources and functions. Intrinsics perform common tasks such as file access and device control. L LAN Local Area Network. A collection of data communication systems sharing a common cable whereby each system can communicate directly with another.
Glossary to establish a virtual circuit (SVC or PVC) through an X.25 network. ldev See logical device number. leased line A data-grade telephone line leased directly to a subscriber and allocated specifically for the subscriber’s needs. line speed The speed at which data is transferred over a specific physical link (usually measured in bits or kilobits per second). link name A name that represents a hardware interface card. The link name can contain as many as eight characters.
Glossary LUG Local User Group. A list defined for a particular DTC and card that specifies which remote nodes this DTC can send data to and also which remote nodes this DTC can receive data from. See also Closed User Group. M map, network A drawing that shows the topology of the network. For networks managed by the OpenView DTC Manager a network map must be created through use of the OVDraw capability provided with the management software.
Glossary MPE/iX MultiProgramming Executive iX The operating system of the HP 3000 Series 900 computers. The NS 3000/iX network services operate in conjunction with the MPE/iX operating system. multiplexer MUX. A device that allows multiple communication links to use a single channel. N nailed device A device with a permanently assigned ldev. The assignment is established through the system configuration of the MPE/iX host system. Nailed devices can be accessed programmatically through their ldev number.
Glossary network map must be created using the OVDraw capability provided with the management software. Network Services NS. Software application products that can be used to access data, initiate processes, and exchange information among nodes in the network. The HP 3000/iX Network Services include RPM, VT, RFA, RDBA, and NFT. network subscribed facilities A set of parameters that the user chooses when he subscribes to the X.
Glossary Node Management Services Configuration Manager See NMMGR. since it is not required that each non-nailed device be individually configured. node name A character string that uniquely identifies each system in a network or internetwork. Each node name in a network or internetwork must be unique; however, a single node can be identified by more than one node name. NS 3000/iX A Hewlett-Packard data communication product that provides networking capabilities for MPE/iX based HP 3000 minicomputers.
Glossary networks used by the DTC Manager, and other applications, such as Switch/PAD Manager, Hub Manager, etc. OpenView Admin An OpenView Windows program that enables you to configure how your OpenView Windows applications will function. For example, it enables you to set a default map for the OpenView DTC Manager. OpenView Draw An OpenView windows program that is used to draw the network map and to label the components on it.
Glossary recommendation. This can be a PDN or a private network such as the HP PPN. PAD (packet assembler/disassembler) A device that converts asynchronous character streams into packets that can be transmitted over a packet switching network (PSN). PAD name A name of up to eight characters that is associated with a configured PAD device. The PAD name is known to both the DTC (defined by the DTC Manager) and the MPE/iX systems (defined by NMMGR) that the device can access.
Glossary more printers through the NMMGR configuration. Printer profile specifications include the printer type, line speed, device class assignment, and other values relevant to printers connected through a DTC. printer type A set of configuration cA collection of characteristics that cause a printer connected to an MPE/iX system to act and react in a specified manner.
Glossary PSS Packet-Switching System. The national public PSN of the United Kingdom. PVC Permanent Virtual Circuit. A permanent logical association between two physically separate DTEs that does not require call set-up or clearing procedures. Q bit See Packet Exchange Protocol. Q Q bit Qualified bit. When set in DATA packets the Q bit signifies that the packet’s user data is a control signal for the remote device, not a message for its user.
Glossary RS-232-C The Electronic Industries Association (EIA) Level 1 protocol specification that defines electrical circuit functions for 25 connector pins. HP provides two implementations of this standard: a 3-pin version for direct connections up to a distance of 15 meters (50 feet), and a version which makes use of additional circuits and can be used for either modem or direct connections. transmission. This transmission scheme is employed by devices connected to the MPE/iX systems via the DTC.
Glossary SNMP Simple Network Management Protocol. An industry standard, for managing networked computers in a multi-vendor environment. subnet Another name for a network, especially if the network is part of an internetwork. The word subnet is also a synonym for intranet. SNP Synchronous Network Processor card; an alternative name for an X.25 board. SVC Switched Virtual Circuit. The path through an X.25 network that is established at call set-up time.
Glossary T TCP See Transmission Control Protocol. Telnet A proprietary public data network in the USA. Telnet Access Card (TAC) A card that resides in the DTC 48 and provides protocol conversion between Telnet and AFCP. Telnet Express See HP ARPA Telnet Express. TermDSM Terminal Online Diagnostic System Manager. A utility that provides diagnostic services for DTC connections by means of a series of commands accessible through the SYSDIAG utility.
Glossary Retransmission Timer (T1) so that no doubt exists about the link’s state. topology The physical arrangement of nodes in a network. Some common topologies are bus, star, and ring. Transmission Control Protocol TCP. A network protocol that establishes and maintains connections between nodes. TCP regulates the flow of data, breaks messages into smaller fragments if necessary (and reassembles the fragments at the destination), detects errors, and retransmits messages if errors have been detected.
Glossary VAN Value-Added Network. A data communication network that uses and pays for facilities belonging to another carrier. The value-added package is then sold to a user. VC See virtual circuit. virtual circuit A logical association between two physically separate DTEs. virtual circuit A logical association between two physically separate DTEs. Virtual Terminal A network service that allows a user to establish interactive sessions on a node.
Glossary Network Access software to provide MPE/iX access to X.25. The software resides on an HP 3000 host and is configured through use of NMMGR. To configure access to an X.25 network, you must configure two software components: the X.25 iX System Access and the DTC/X.25 Network Access (residing on the Datacommunications and Terminal Controller and configured at the OpenView Windows Workstation). Together, these two components provide a network connection on HP 3000 systems to private and public X.
Glossary 158 Glossary
Index Numerics 10Base-T, 18 25-pin connectors, 34 25-pin RS-232, 15 3-pin connectors, 34 3-pin RS-232, 15 5-pin connectors, 34 5-pin RS-422, 15 A abort sessions, 35 aborting sessions, 36 access port, 14 application software, 21, 23 ASC, 33 Asynchronous Serial Communications ASC, 19 asynchronous serial devices, 14, 33, 34 Attachment Unit Interface (AUI), 17 B block mode, 20, 21 BNCT-connector, 17 C cabinet space, 14 character mode, 20, 21 coaxial cable, 16 collect information, 21 command-based utility, 36 C
Index RS-232-C direct-connect cards, 34 RS-422 direct-connect cards, 34 S security levels, 34 serial interface, 26 serial interface/connector cards, 34 serial printers, 23 sessions, 35 SNP cards, 34 soft reset, 26 software, 16, 30, 33 software faults, 27 speed sensing, 26 SPU, 16 station address, 16 STATUS command, 37, 81, 87 DTC, 82 Port, 84 SNP, 86 subsystem information, 36 SYSDIAG command, 38 system console, 14 system powerfail, 20 System Processing Unit SPU, 16 T TermDSM, 22, 27, 30, 33, 34, 35, 36 Ter
