Benutzeranleitung / Produktwartung 100BASE-TX des Produzenten HP (Hewlett-Packard)
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Using Dual P ort 100Base-TX and Dual P ort W ide Ultra2 SCSI V ersion B.11.00.01 Manufacturing P art Number: E1099 U . S . A. © Copyright 1999 Hewlett-P ackard Company .
2 Legal Notices The information in this document is subject to change without notice. Hewlett-P ackard makes no warranty of any kind with regard to this manual, including , but not limited to , the implied warranties of merchantability and fitness f or a particular purpose .
Contents iii 1. Installing and Configuring PCI 10/100 Base-TX Compatibility and Installation Requirements . . . . . . . . . . . . . . . . . . . . . 10 Manual Speed and Duplex Mode Configuration . . . . . . . . . . . . . . . . . . . 11 Autonegotiation and Autosensing .
iv Contents 6. Troubleshooting 10/100Base-TX/9000 P erformance Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Corrective Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Troubleshooting Overview .
Contents v Cabling Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Cable Lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 Dual P ort 100Base-TX and Dual P ort Wide Ultra 2 SCSI Specifications .
vi Contents.
7 Preface The information in this manual is intended for network managers who install and administer 10/100Base-TX networks and Wide Ultra2 SCSI devices. It is assumed the reader is experienced with the basics of local and wide area networking and SCSI technology .
8.
9 1 Installing and Configuring PCI 10/100 Base-TX This document contains information on the PCI 10/100Base-TX/9000 amd Wide Ultra2 SCSI cards for use with the 11.
10 Chapter 1 Installing and Configuring PCI 10/100 Base-TX Compatibility and Installation Requirements Compatibility and Installation Requirements F ollowing are the limits of the current PCI 10/100Base-TX/9000: • The PCI 10/100Base-TX/9000 ports support autonegotiation and autosensing .
Chapter 1 11 Installing and Configuring PCI 10/100 Base-TX Manual Speed and Duplex Mode Configuration Manual Speed and Duplex Mode Configuration Because the PCI 10/100Base-TX/9000 LAN ports support autonegotiation, you should not normally need to manually set the duplex mode.
12 Chapter 1 Installing and Configuring PCI 10/100 Base-TX Manual Speed and Duplex Mode Configuration T o manually set the duplex mode of the PCI ports, first ensure that your computer has the latest applicable patches installed as listed in the Required and Optional P atches section of this release note.
Chapter 1 13 Installing and Configuring PCI 10/100 Base-TX Manual Speed and Duplex Mode Configuration some switches may disable that switch port from doing autonegotiation. V erify that both the card and the switch port are operating in the same speed and duplex mode as desired.
14 Chapter 1 Installing and Configuring PCI 10/100 Base-TX A utonegotiation and Autosensing Autonegotiation and Autosensing Autonegotiation is a mechanism defined in the IEEE 802.
Chapter 1 15 Installing and Configuring PCI 10/100 Base-TX What Manuals are A vailable If a PCI 10/100Base-TX/9000 port is connected to a device, such as a switch, that is autonegotiating , the PCI card will autonegotiate with the device to mutually determine the highest possible speed and duplex settings between them.
16 Chapter 1 Installing and Configuring PCI 10/100 Base-TX Software A vailability in Native Langua ges Software A vailability in Native Languages The commands used with this product are the ones supported by the Native Language Support Catalog of HP-UX.
17 2 Configuring Network Connectivity Using SAM This chapter describes how to configure remote connectivity using SAM. It contains the following sections:.
18 Chapter 2 Configuring Network Connectivity Using SAM • Step 1: Configuring Network Connectivity • Step 2: Deleting a Default Gatewa y (Optional).
Chapter 2 19 Configuring Network Connectivity Using SAM Step 1: Configuring Network Connectivity Step 1: Configuring Network Connectivity Y our system may not be able to communicate with other systems, for example, PCs , workstations , servers, etc .
20 Chapter 2 Configuring Network Connectivity Using SAM Step 1: Configuring Network Connectivity Internet Addresses window . Proceed to step 5 if a gatewa y is not required for this remote connection. SAM displays fields for entering gatew ay information if a gatewa y is required for this remote system connection.
Chapter 2 21 Configuring Network Connectivity Using SAM Step 2: Deleting a Default Gatewa y Step 2: Deleting a Default Gateway T o delete a default gateway that you have added with SAM, do the following: 1.
22 Chapter 2 Configuring Network Connectivity Using SAM Step 2: Deleting a Default Gatewa y.
23 3 SCSI P arameter and T ermination Information.
24 Chapter 3 SCSI P arameter and T er mination Inf or mation Configuring SCSI P arameters Configuring SCSI P arameters In order to change the SCSI ID , the path for the card of interest must first be determined. Once the path is known, the SCSI ID may be changed.
Chapter 3 25 SCSI P arameter and T er mination Inf or mation SCSI T ermination Information P ath (dec) Initiator ID SCSI Rate Auto T erm ------------ -------------- ---------- --------------- .
26 Chapter 3 SCSI P arameter and T er mination Inf or mation SCSI T ermination Information.
27 4 T roubleshooting SCSI.
28 Chapter 4 T roubleshooting SCSI T r oubleshooting T roubleshooting The A5838A host bus adapter is a single field-replaceable unit (FR U) and does not contain any field-serviceable parts. T roubleshooting procedures described in this section are limited to verifying that the controller is operational and a v alid connection is established.
Chapter 4 29 T roubleshooting SCSI T r oubleshooting If diagnostics determine that the controller is defectiv e, you must replace it. Contact your local He wlett-Packard customer representati ve or call the HP Response Center .
30 Chapter 4 T roubleshooting SCSI T r oubleshooting SCSI Command Use the SCSI command to ensure SCSI controller and SCSI device compatibility by displaying and selecting SCSI bus parameters. The SCSI command is av ailable from the boot menu displayed after the test station has booted, provided autoboot is disabled.
Chapter 4 31 T roubleshooting SCSI T r oubleshooting command: SCSI rate 5 2 PCI device /5.2 = fast scsi Display and Set SCSI IDs 1. Display the initiator (SCSI) IDs for all controllers, buses, and slots using the SCSI command. The follo wing example sho ws the SCSI ID for the controller on bus 5 slot 2.
32 Chapter 4 T roubleshooting SCSI T r oubleshooting Contacting Y our HP Representative If the equipment is cov ered by an HP service contract, document the problem as a service request and forward it to your HP representati ve.
Chapter 4 33 T roubleshooting SCSI T r oubleshooting • In the e vent of a system failure, obtain a full memory dump. If the directory /var/adm/crash exists, the HP-UX utility /sbin/savecor e automatically ex ecutes during reboot to sav e the memory dump.
34 Chapter 4 T roubleshooting SCSI T r oubleshooting If the equipment is not cov ered by an HP service contract, there may be a charge for time and materials.
Chapter 4 35 T roubleshooting SCSI T r oubleshooting SCSI Status Codes SCSI Status Code Name 0x00 good 0x02 check condition 0x04 condition met 0x08 busy 0x10 intermediate 0x14 intermediate - condition.
36 Chapter 4 T roubleshooting SCSI T r oubleshooting 0xd volume o verflo w 0xe miscompare 0xf reserved SCSI Sense K eys (Continued) Sense Ke y Name SCSI Additional Sense and Qualifier Codes Addition.
Chapter 4 37 T roubleshooting SCSI T r oubleshooting 0x04 0x04 logical unit not ready , format in progress 0x05 0x00 logical unit does not respond to selection 0x06 0x00 reference position found 0x07 .
38 Chapter 4 T roubleshooting SCSI T r oubleshooting 0x12 0x00 address mark not found for id field 0x13 0x00 address mark not found for data field 0x14 0x00 recorded entity not found 0x14 0x01 recor.
Chapter 4 39 T roubleshooting SCSI T r oubleshooting 0x19 0x02 defect list error in primary list 0x19 0x03 defect list error in grown list 0x1a 0x00 parameter list length error 0x1b 0x00 synchronous d.
40 Chapter 4 T roubleshooting SCSI T r oubleshooting 0x2f 0x00 commands cleared by another initiator 0x30 0x00 incompatible medium installed 0x30 0x01 cannot read medium - unknown format 0x30 0x02 can.
Chapter 4 41 T roubleshooting SCSI T r oubleshooting 0x3e 0x00 logical unit has not self-configured yet 0x3f 0x00 target operating conditions ha ve changed 0x3f 0x01 microcode has been changed 0x3f 0.
42 Chapter 4 T roubleshooting SCSI T r oubleshooting 0x55 0x00 system resource failure 0x56 0x00 reserved 0x57 0x00 unable to recov er table of contents 0x58 0x00 generation does not exist 0x59 0x00 u.
Chapter 4 43 T roubleshooting SCSI T r oubleshooting 0x68 0x00 reserved 0x69 0x00 reserved 0x6A 0x00 reserved 0x6B 0x00 reserved 0x6C 0x00 reserved 0x6D 0x00 reserved 0x6E 0x00 reserved 0x6F 0x00 rese.
44 Chapter 4 T roubleshooting SCSI T r oubleshooting.
45 5 10/100Base-TX Resources In addition to this manual, use the following resources to maintain and administer PCI 10/100Base-TX/9000..
46 Chapter 5 10/100Base-TX Resources HP-UX Manual Reference P ages HP-UX Manual Reference P ages While installing, configuring , or troubleshooting 10/100Base-TX, you may need to refer to any of the following online manual reference pages (man pages) for useful HP-UX operating system or 10/100Base-TX commands .
Chapter 5 47 10/100Base-TX Resources HP-UX Manual Reference P ages • swinstall(1M) loads software filesets onto 10.x systems . • swverify(1M) verifies software installation.
48 Chapter 5 10/100Base-TX Resources Error Messa ges Error Messages PCI 10/100Base-TX comes with an online message catalog that is used to report networking problems. Y ou must use the nettl logging and tracing utility to display the probable cause and action for a message .
Chapter 5 49 10/100Base-TX Resources Logging Messages Logging Messages HP 100Base-TX/9000 uses the nettl(1M) logging and tracing facility supplied with HP-UX. Y ou may access the logging and tracing utility using either the graphical user interface (GUI) version or the command line interface.
50 Chapter 5 10/100Base-TX Resources Logging Messages <6011> HP PCI 10/100Base-T driver detected bad cable connection between the adapter in slot 2 and the hub or switch. • T o examine just the log messages in the log file. netfmt -f /var/adm/nettl.
Chapter 5 51 10/100Base-TX Resources Manual Installation and Configuration Manual Installation and Configuration If you want to manually install and configure your 10/100Base-TX/9000 product, refer to the detailed instructions in the Installing and Administering LAN/9000 Software manual.
52 Chapter 5 10/100Base-TX Resources Contacting Y our HP Representative Contacting Y our HP Representative If you have no service contract with HP , you may follow the procedure described below , but you will be billed accordingly for time and materials.
Chapter 5 53 10/100Base-TX Resources Contacting Y our HP Representative • Save all network log files . Make sure that ERROR and DISASTER log classes are enabled when log files are collected. Prepare the formatted output and a copy of the log file for your HP representative to further analyze.
54 Chapter 5 10/100Base-TX Resources Contacting Y our HP Representative.
55 6 T roubleshooting 10/100Base-TX/9000 This chapter provides guidelines for troubleshooting 10/100Base-TX. It contains the following sections:.
56 Chapter 6 T roubleshooting 10/100Base-TX/9000 • Troubleshooting Overview . • Diagnostic Flowcharts ..
Chapter 6 57 T roubleshooting 10/100Base-TX/9000 P erformance T roubleshooting P erformance T roubleshooting This section is intended to provide system administrators or advanced users with detailed information on how to troubleshoot performance related problems with the PCI 100BT product.
58 Chapter 6 T roubleshooting 10/100Base-TX/9000 P erformance T roubleshooting are in the transmit FIFO . While the current Transmit Threshold value allows the PCI 100BT product to achieve it's best performance, it also increases the probability of Transmit Underrun errors.
Chapter 6 59 T roubleshooting 10/100Base-TX/9000 P erformance T roubleshooting a TransmitThreshold of 1500 is conservative In all of the cases above after setting the Transmit Threshold mode as speci.
60 Chapter 6 T roubleshooting 10/100Base-TX/9000 T r oubleshooting Overview T roubleshooting Overview 10/100Base-TX problems can be caused by problems in a variety of hardware and softw are components. The problem impacting your system may originate in another part of the 10/100Base-TX network.
Chapter 6 61 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Diagnostic Flowcharts Below is a summary of the types of network tests in the diagnostic flowcharts .
62 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Transport Level Loopback T est: Checks roundtrip communication between Transport Layers on the source and target host using ARP A services telnet and ftp commands . Bridge/Gateway Loopback T est: Checks general network connections through a gatewa y .
Chapter 6 63 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 1: Network Level Loopback T est Figure 6-1 Flowchart 1: Network Level Loopback T est 1 A C Execute: ping to remote hos.
64 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 1 Procedures A. Execute: ping to remote host. Using ping(1M) , send a message to the remote host to which you are having problems connecting. F or example: ping spiff B.
Chapter 6 65 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 2: 10/100Base-TX Connections/LED T est Figure 6-2 Flowchart 2: 10/100Base-TX Connections/LED T est 2 Check: Power outl.
66 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 2 Procedures A. Check P ower outlet. Ensure the power cord is plugged in to a live outlet. B. T est Error Message on Screen? At the HP-UX prompt, type the dmesg command, and look for an error message.
Chapter 6 67 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 3: Configuration T est Figure 6-3 Flowchart 3: Configuration T est 3 A Execute: lanscan Is your interface displayed B 5 yes yes V erify or edit /stand/system Regen kernel.
68 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 3 Procedures NO TE Check that your 10/100Base-TX connectors to the card and hub (or w all plug) are fully connected before beginning this flowchart. A. Execute: lanscan.
Chapter 6 69 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts similar to the following will be displayed:.
70 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Class I H/W Path Driver S/W State H/W Type Description ======================================================================== .
Chapter 6 71 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts E. Is driver in kernel? If the driver has not been generated into the kernel, ioscan output will be: The class and driver fields alone will indicate “unknown” status if the kernel has not been generated.
72 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 4: Configuration T est Figure 6-4 Flowchart 4: Configuration T est no Problem solved ? Execute: netfmt A B C D E yes.
Chapter 6 73 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 4 Procedures A. Execute: netfmt. Use the netfmt command to view log data (error and disaster messages). An example command is shown below . netfmt -v -f /var/adm/nettl.LOG00 | more B.
74 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 4A: Configuration T est Figure 6-5 Flowchart 4A: Configuration T est Flowchart 4A Procedures A. Execute: netfmt. Use the netfmt command to view log data (error and disaster messages).
Chapter 6 75 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts 10/100Base-TX information. C. Problem solved. If yes , go to flowchart 1. If not, contact your HP representative.
76 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 5: Configuration T est Figure 6-6 Flowchart 5: Configuration T est Flowchart 5 Procedures A. Execute: ifconfig <interface> <IP address> up. : ifconfig successful ? 5 Add ifconfig command to ? ifconfig entry in /etc/rc.
Chapter 6 77 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Execute ifconfig on the interface you want to configure in order to ensure that the interface is enabled. F or example, to configure the 10/100Base-TX interface lan1 , enter: ifconfig lan1 192.
78 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts I. Add ifconfig command to /etc/rc.config.d/netconf file. Add the ifconfig command to /etc/rc .config .d/netconf , and reboot . F or more information, refer to the ifconfig(1M) online man page.
Chapter 6 79 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 6: Network Level Loopback T est Figure 6-7 Flowchart 6: Network Level Loopback T est 6 A D Entry complete ? yes Bring .
80 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 6 Procedures A. Host entry in ARP cache? Using arp , check that an entry exists for the remote host in your system's ARP cache .
Chapter 6 81 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 7: Link Level Loopback T est Figure 6-8 Flowchart 7: Link Level Loopback T est 7 C Loopback F AILED: Address has bad L.
82 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 7 Procedures A. Execute: linkloop to remote host. Enter the NMID of your 10/100Base-TX card and link level address (station address) of the remote host in hexadecimal form (preceded by “0x”).
Chapter 6 83 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts flowchart 1 to verify configuration of the remote host..
84 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 8: Transport Level Loopback T est (using ARP A) Figure 6-9 Flowchart 8: T ransport Level Loopback T est (using ARP A) .
Chapter 6 85 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 8 Procedures A. Execute: telnet to remote host. Try to establish a telnet connection to the remote host. B. Successful? If your telnet attempt was successful, stop. The connection is o .
86 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts Flowchart 9: Bridge/Gateway Loopback T est Figure 6-10 Flowchart 9: Bridge and Gateway Loopback T est 9 F Non-HP 9000 or Config.
Chapter 6 87 T roubleshooting 10/100Base-TX/9000 Diagnostic Flo wcharts Flowchart 9 Procedures A. Execute: ping from known good host through gateway to known good remote host.
88 Chapter 6 T roubleshooting 10/100Base-TX/9000 Diagnostic Flowc harts gatewa y ..
89 A 10/100Base-TX Interface Card Statistics.
90 Appendix A 10/100Base-TX Interf ace Card Statistics LAN Interface Status Display LAN Interface Status Display This appendix contains descriptions of the RFC 1213 MIB II statistics fields for LAN interface cards which are displayed on the screen with the display command in lanadmin LAN Interface T est Mode .
Appendix A 91 10/100Base-TX Interf ace Card Statistics LAN Interface Status Display Deferred Transmissions = 0 Late Collisions = 0 Excessive Collisions = 0 Internal MAC Transmit Errors = 0 Carrier Sen.
92 Appendix A 10/100Base-TX Interf ace Card Statistics RFC 1213 MIB II RFC 1213 MIB II F or more detailed information about the fields described below , refer to RFC 1213. Field Description Network Management ID A unique ID assigned by the system for the network management of each network interface.
Appendix A 93 10/100Base-TX Interf ace Card Statistics RFC 1213 MIB II Operation Status The current operational state of the interface. This value is the same as the hardware status displa yed by lanscan(1M) . It will have one of the following values .
94 Appendix A 10/100Base-TX Interf ace Card Statistics RFC 1213 MIB II Outbound Non-Unicast P ackets The total number of packets that higher -level protocols requested be transmitted to a non-unicast (a subnetwork-broadcast or subnetwork-multicast) address, inc luding those that were discarded or not sent.
Appendix A 95 10/100Base-TX Interf ace Card Statistics RFC 1284 Ethernet-Like Interface Statistics RFC 1284 Ethernet-Like Interface Statistics Field Description Index A value that uniquely identifies an interface to an 802.
96 Appendix A 10/100Base-TX Interf ace Card Statistics RFC 1284 Ethernet-Like Interface Statistics condition was lost or never asserted when attempting to transmit a frame on a particular interface. Frames T oo Long A count of frames received on a particular interface that exceed the maximum permitted framer size.
Appendix A 97 10/100Base-TX Interf ace Card Statistics Create a Record or Map of Y our Internetwork Create a Record or Map of Y our Internetwork Be sure to create or update a record of your network and internetwork before attempting 10/100Base-TX installation.
98 Appendix A 10/100Base-TX Interf ace Card Statistics Create a Record or Map of Y our Internetwork.
99 B Hardware Reference Information This appendix contains information about the card LEDs, cabling specifications and card specifications..
100 Appendix B Hardware Ref erence Inf or mation Basic T roub leshooting Tips Basic T roubleshooting Tips Listed below are some tips on troubleshooting common hardware problems . Refer to this information when you are trying to identify 10/100Base-TX hardware problems .
Appendix B 101 Hardware Ref erence Inf or mation Connector Information Connector Information This section includes pin usage information for the RJ-45 twisted pair connector . Connectors on LAN adapters adhere to appropriate standards agreed upon by various standards bodies and are widely available .
102 Appendix B Hardware Ref erence Inf or mation Connector Information Figure B-1 Pin Layout of RJ-45 Connector on PCI Card A vailable HP Cables: • HP 92268A - 4 meter with attached 8-pin connectors . • HP92268B - 8-meter with attached 8-pin connectors .
Appendix B 103 Hardware Ref erence Inf or mation Connector Information A vailable HP Cables: • HP 92268A - 4 meter with attached 8-pin connectors . • HP92268B - 8-meter with attached 8-pin connectors . • HP 92268C - 16-meter with attached 8-pin connectors .
104 Appendix B Hardware Ref erence Inf or mation Cabling Inf ormation Cabling Information Connectors on LAN adapters adhere to appropriate standards agreed upon by various standards bodies and are widely available . Incorrectly wired or installed cabling is the most common cause of communications problems for local area networks.
Appendix B 105 Hardware Ref erence Inf or mation Dual P ort 100Base-TX and Dual Port Wide Ultra 2 SCSI Specifications Dual P ort 100Base-TX and Dual P ort W ide Ultra 2 SCSI Specifications A5838A Specifications Physical Electrical Environmental T emperature Degrees F = (1.
106 Appendix B Hardware Ref erence Inf or mation Dual P ort 100Base-TX and Dual Port Wide Ultra 2 SCSI Specifications Cable Interfaces • The 10/100Base-TX ports are compatible with IEEE 802.3u standard and use RJ-45 connectors. Communications Standards • The physical layer of IEEE 802.
107 C Hardware Regulatory Statements This section contains hardware regulatory statements for the Dual P ort 100Base-TX and Dual P ort Ultra2 SCSI product used in the United States, Canada, and the European community . Refer to your Dual P ort 100Base-TX and Dual P ort Ultra2 SCSI Quick Installation card for product installation instructions.
108 Appendix C Hardware Regulatory Statements FCC Statement (For U .S.A.) FCC Statement (F or U .S .A.) F ederal Communications Commission Radio Frequency Interference Statement W ARNING This device complies with P art 15 of the FCC rules.
Appendix C 109 Hardware Regulatory Statements EMI Statement (European Comm unity) EMI Statement (European Community) NO TE This is a Class A product. In a domestic environment, this product may cause radio interference, in whic h case you may be required to take adequate measures .
110 Appendix C Hardware Regulatory Statements EMI Statement (European Comm unity).
111 Glossary 10Base-T: A 10 Mbit/s communication method specified in the IEEE 802.3u-1995 standard. 100Base-T: A 100 Mbit/s communication method specified in the IEEE 802.3u-1995 standard. The official name for F ast Ethernet. 100Base-TX: A specific implementation of 100Base-T designed to operate over Category 5 UTP cabling.
112 used to transmit data, status, and control signals . EISA, PCI, and SCSI are examples of buses. Bus Mastering A high-performance way to transfer data. The host adapter controls the transfer of data directly to and from system memory without bothering the computer’ s microprocessor .
113 message communications to STREAMS-based network interface drivers. DMA (direct memory access) A method of moving data from a storage device directly to RAM, without using the CPU’ s resources.
114 networks whereby data can flow in only one direction at a time across the multiple wire pairs of a physical link. Hard Disk A rigid disk permanently sealed into a drive cartridge.
115 Internet Address: The network address of a computer node. This address identifies both which network the host is on and which host it is . Refer to the Installing and Administering LAN/9000 Software manual for detailed information about network addressing.
116 Major Number: Unique value that identifies an individual hardware device.The number for the 10/100Base-TX card floats . Maximum Transmission Unit (MTU). Largest amount of data that can be transmitted through that interface. This value does not include the LLC or MAC headers.
117 P acket: A sequence of binary digits that is transmitted as a unit in a computer network. A packet usually contains control information plus data. P arity Checking A way to verify the accurac y of data transmitted over the SCSI bus. One bit in the transfer is used to mak e the sum of all the 1 bits either odd or e ven (for odd or e ven parity).
118 lost when the computer is turned off. RISC Core Symbios SCSI chips contain a RISC (Reduced Instruction Set Computer) processor , programmed through microcode scripts. RJ-45: The name for the connector type used with UTP cabling. ROM (Read-Only Memory) Memory from which information can be read but not changed.
119 which share the same network address space . Refer to the Installing and Administering LAN/9000 Software manual for detailed information about subnetworks and subnet addressing. Subnet mask: A 32-bit mask which, when AND'd with an internet address , determines a subnetwork address.
120 consisting of pairs of wires twisted together without an electrically shielding jacket. VCCI V oluntary Control Council for Interference. VHDCI V ery High Density Cable Interconnect. Wide SCSI A SCSI-2 feature allo wing 16 or 32-bit transfers on the SCSI bus.
Ein wichtiger Punkt beim Kauf des Geräts HP (Hewlett-Packard) 100BASE-TX (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
Wenn Sie HP (Hewlett-Packard) 100BASE-TX noch nicht gekauft haben, ist jetzt ein guter Moment, um sich mit den grundliegenden Daten des Produkts bekannt zu machen. Schauen Sie zuerst die ersten Seiten der Anleitung durch, die Sie oben finden. Dort finden Sie die wichtigsten technischen Daten für HP (Hewlett-Packard) 100BASE-TX - auf diese Weise prüfen Sie, ob das Gerät Ihren Wünschen entspricht. Wenn Sie tiefer in die Benutzeranleitung von HP (Hewlett-Packard) 100BASE-TX reinschauen, lernen Sie alle zugänglichen Produktfunktionen kennen, sowie erhalten Informationen über die Nutzung. Die Informationen, die Sie über HP (Hewlett-Packard) 100BASE-TX erhalten, werden Ihnen bestimmt bei der Kaufentscheidung helfen.
Wenn Sie aber schon HP (Hewlett-Packard) 100BASE-TX besitzen, und noch keine Gelegenheit dazu hatten, die Bedienungsanleitung zu lesen, sollten Sie es aufgrund der oben beschriebenen Gründe machen. Sie erfahren dann, ob Sie die zugänglichen Funktionen richtig genutzt haben, aber auch, ob Sie keine Fehler begangen haben, die den Nutzungszeitraum von HP (Hewlett-Packard) 100BASE-TX verkürzen könnten.
Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit HP (Hewlett-Packard) 100BASE-TX. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei HP (Hewlett-Packard) 100BASE-TX gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
