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JDS Uniphase HST-3000 User Manual

Adsl2 testing
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  • Page 1 HST-3000 ADSL2 Testing User’s Guide...
  • Page 3 HST-3000 ADSL2 Testing User’s Guide Communications Test and Measurement Solutions One Milestone Center Court Germantown, Maryland 20876-7100 USA Toll Free 1-855-ASK-JDSU Tel +1-240-404-2999 Fax +1-240-404-2195 www.jdsu.com...
  • Page 4 Copyright release Reproduction and distribution of this guide is authorized for Government purposes only. Trademarks JDS Uniphase, JDSU, HST-3000, and HST-3000C are trade- marks or registered trademarks of JDS Uniphase Corporation in the United States and/or other countries.
  • Page 5 Ordering This guide is a product of JDSU’s Technical Information information Development Department, issued as part of the HST-3000. The catalog number for a printed guide is ML-059701. The catalog number for a USB stick containing the manual in elec- tronic form is ML-060301.
  • Page 6 JDSU for appropriate disposal. If the equipment or battery was imported by a reseller whose name or logo is marked on the equipment or battery, then the owner should return the equipment or battery directly to the reseller. HST-3000 ADSL2 Testing User’s Guide...
  • Page 7 Instructions for returning waste equipment and batteries to JDSU can be found in the Environmental section of JDSU’s web site at www.jdsu.com. If you have questions concerning disposal of your equipment or batteries, contact JDSU’s WEEE Program Management team at WEEE.EMEA@jdsu.com. HST-3000 ADSL2 Testing User’s Guide...
  • Page 8 HST-3000 ADSL2 Testing User’s Guide...

  • Page 9: Table Of Contents

    HST-3000 ADSL2 Testing User’s Guide ... . . xiii HST-3000 Base Unit User’s Guide ....xiii Safety and compliance information.
  • Page 10 Step 1: specifying test settings ....46 Step 2: measuring throughput ....48 viii HST-3000 ADSL2 Testing User’s Guide...
  • Page 11 General test problems ..... 86 ADSL test problems ..... . . 86 HST-3000 ADSL2 Testing User’s Guide...
  • Page 12 Contents Glossary Index HST-3000 ADSL2 Testing User’s Guide...
  • Page 13 “Purpose and scope” on page xii – “Assumptions” on page xii – “Terminology” on page xii – “HST-3000 ADSL2 Testing User’s Guide” on page xiii – “HST-3000 Base Unit User’s Guide” on page xiii – “Safety and compliance information” on page xiii –...

  • Page 14: About This Guide

    Assumptions This guide is intended for novice, intermediate, and experi- enced users who want to use the HST-3000 effectively and efficiently. We are assuming that you have basic computer experience and are familiar with basic telecommunication concepts, terminology, and safety.

  • Page 15: Hst-3000 Adsl2 Testing User's Guide

    The HST-3000 ADSL2Testing User’s Guide is an application- oriented user’s guide containing information about using the HST-3000 ADSL2 testing option to perform test operations on ADSL2/2+ services. This includes an overview of testing features, instructions for using the HST-3000 in ADSL2 modem emulate mode, ADSL2 through mode, and Ethernet TE mode.

  • Page 16: Technical Assistance

    Before you contact JDSU for technical assistance, please have the serial numbers for the service interface module (SIM) and the base unit handy (see “Locating the serial number” in the HST-3000 Base Unit User’s Guide). Table 1 Technical assistance centers...

  • Page 17: Conventions

    A plus sign + indicates simul- Press Ctrl+s taneous keystrokes. A comma indicates consecu- Press Alt+f,s tive key strokes. A slanted bracket indicates On the menu bar, click choosing a submenu from Start > Program Files. menu. HST-3000 ADSL2 Testing User’s Guide...
  • Page 18 WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. HST-3000 ADSL2 Testing User’s Guide...

  • Page 19: Getting Started

    Getting Started Chapter 1 This chapter provides a general description of the HST-3000’s optional ADSL2 testing features. Topics discussed in this chapter include the following: – “About ADSL2 testing” on page 2 – “Quick tour” on page 3 HST-3000 ADSL2 Testing User’s Guide...

  • Page 20: About Adsl2 Testing

    Chapter 1 Getting Started About ADSL2 testing About ADSL2 testing The HST-3000 ADSL testing features use modem emulation (ATU-R Annex A or Annex B) to turn up and troubleshoot ADSL and ADSL2 services as well as provide ATM statistics and analysis. The optional internet protocol (IP) suite software allows IP/PPP troubleshooting.

  • Page 21: Quick Tour

    – Flashing green indicates that the modems are training. – Solid green indicates that the modems have synchronized. – Solid red indicates a synchronization error has occurred. For Ethernet: – Solid green indicates 10/100 activity has been detected. HST-3000 ADSL2 Testing User’s Guide...
  • Page 22 – Solid green indicates that a data connection has been established with the network (so that the HST-3000 may send and receive data on the network). In DHCP mode, it indi- cates that we have achieved an IP address assignment.

  • Page 23: Connector

    CAUTION: INSTRUMENT DAMAGE Using a cable that is not specified for the port can damage the port. For example, using a RJ-11 connector in a RJ-45 or RJ-48 port will damage the port. Use only appropriate cables. HST-3000 ADSL2 Testing User’s Guide...

  • Page 24: User Interface Navigation

    HST test results. CAUTION: DAMAGE TO MODULE Placing the sealing current terminator on a line with voltage over 150 volts may damage the unit. HST-3000 ADSL2 Testing User’s Guide...

  • Page 25: Updating The Modem Software

    The gateway that IP traffic will be routed through when attempting to connect to the server. This is only valid when IP Mode is Static. Username The user that will be used when connect- (FTP only) ing to the FTP server. HST-3000 ADSL2 Testing User’s Guide...
  • Page 26 The IP or domain name to get the update Address from. This should point to the actual direc- tory on the server containing the files used for the update. 5 Select Start to begin the update. This may take several minutes. HST-3000 ADSL2 Testing User’s Guide...

  • Page 27: Adsl2 Testing

    ADSL2 Testing Chapter 2 This chapter provides task-based instructions for using the optional HST-3000 ADSL2 testing features. Topics discussed in this chapter include the following: – “Accessing the ADSL2 testing feature” on page 10 – “Testing in modem emulate mode” on page 11 –...

  • Page 28: Accessing The Adsl2 Testing Feature

    You can access Ethernet terminal equipment (TE) mode by pressing the Ethernet soft key (see “Ethernet TE Testing” in the HST-3000 Base Unit User’s Guide). To access the ADSL testing feature 1 If you haven’t already done so, press the power key to turn on the HST-3000.

  • Page 29: Testing In Modem Emulate Mode

    For example, VoIP and Video are options, so they may or may not appear. Testing in modem emulate mode In modem emulate mode, the HST-3000 terminates the line instead of the CPE. The modem emulation test involves the following steps: –...

  • Page 30: Specifying Test Settings

    Testing in modem emulate mode Specifying test Before you begin testing, make sure the test settings on the HST-3000 match the settings of the line you are testing. settings To specify test settings 1 Access the ADSL testing options (see page 10).
  • Page 31 If you have a Conexant SIM, the selection does not appear. 8 Select Auto Sync, and then select either On or Off. 9 This parameter specifies whether the HST-3000 will auto- matically attempt to re-sync with the DSLAM if the connection drops.
  • Page 32 Annex J. This selection is only available on Infineon SIMs with modem software version 5.1.4.0. (To verify your modem software version, go to the Identity results menu.)Select DSL Interface and then specify whether to use the RJ45 connector or Tip/Ring/Ground as the DSL interface. HST-3000 ADSL2 Testing User’s Guide...
  • Page 33 13 If the line modulation standard is G.Lite, the Fast Retrain option appears. Select Fast Retrain, and then select either On or Off. This parameter specifies whether the HST-3000 attempts to reconnect at the same speed (ON) or fully initiate the line and retrain (OFF).

  • Page 34: Connecting To The Line

    22 If you are using a Conexant SIM and wish to change the modem driver, use Select Driver to select a driver. The general modem settings are specified. Connecting to After specifying the test settings, you can connect to the line. the line HST-3000 ADSL2 Testing User’s Guide...

  • Page 35: Testing The Physical Layer

    Line port The test leads are connected. Testing the You can use the HST-3000 to test the physical layer of the ADSL link. The following procedure describes the basic test physical layer for the ADSL link. HST-3000 ADSL2 Testing User’s Guide...

  • Page 36: Testing Line Quality

    If the unit achieves sync at the desired data rates, noise margins, and attenuation, the ADSL link is good. Testing line Once connected to the line, the HST-3000 gathers statistics for the line. These statistics are used to determine the line quality quality.

  • Page 37: Running A Dr. Dsl Test

    Testing line quality is complete. Running a The HST-3000 includes Aware, Inc.’s Dr. DSL diagnostics tool. This is an optional capability available on the Infineon Dr. DSL test SIMs, in Annex A, Annex B, and Annex M mode.
  • Page 38 “Connecting to the line” on page The modem begins to train on the line automatically. When it reaches show time, the HST-3000 begins gath- ering statistics. 2 Press the Display soft key and then select Dr. DSL. The ADSL Dr. DSL screen appears and the background test begins.

  • Page 39: Testing In Adsl Atu-C Mode

    Chapter 2 ADSL2 Testing Testing in ADSL ATU-C mode Testing in ADSL ATU-C mode If you have an Infineon SIM, the HST-3000 can emulate an ADSL ATU-C to help sectionalize troubles. NOTE: Data testing is not available in ATU-C mode.

  • Page 40: Connecting To The Line

    The ADSL General Settings menu appears. 2 Select DSL Type, and then select ATU-C. 3 Select Auto Sync, and then select either On or Off. This parameter specifies whether the HST-3000 will auto- matically attempt to re-sync with the modem if the connection drops.

  • Page 41: Testing Line Quality

    HST in ATU-R mode. The test leads are connected. Testing line Once connected to the line, the HST-3000 gathers statistics for the line. These statistics are used to determine the line quality quality.

  • Page 42: Testing Data Services

    Chapter 2 ADSL2 Testing Testing Data services For more information on saving results and managing the files, see the HST-3000 Base Unit User’s Guide. 3 Press the Display soft key to view different types of statis- tics. Chapter 3 “Interpreting Test Results”...

  • Page 43: Specifying Test Settings

    Through after analyzing it. Specifying test Before you begin testing, make sure the settings on the HST-3000 match the settings of the line you are testing. The settings following settings can be specified on the HST: – Data settings (see “Specifying data settings”...

  • Page 44: Specifying Data Settings

    The following procedure describes how to specify the data settings. To specify the data settings 1 Press the Configure navigation key. The parameter soft keys appear. 2 Press the DATA soft key. The Data Settings menu appears. HST-3000 ADSL2 Testing User’s Guide...
  • Page 45 – ATM Loopback allows ATM cells to be looped back. – IPoE MVC Video is an optional mode for IP video testing. For more information, see the HST-3000 IP Video Testing User’s Guide. – Bridged Ethernet - HST acts as a layer two bridging device between the WAN and LAN (no routing).

  • Page 46: Specifying Lan Settings

    The data settings are specified. Specifying LAN The following procedure describes how to specify the LAN settings settings. The LAN settings are only available in Through mode (when the Data Emulation Type is set to Through). HST-3000 ADSL2 Testing User’s Guide...
  • Page 47 Enter the pool size. This is how many IP addresses the tester’s DHCP server may assign to other computers. 7 Select Media Type, then select the media type. The LAN settings are specified. HST-3000 ADSL2 Testing User’s Guide...

  • Page 48: Specifying Wan Settings

    Data Settings menu “Interface x Mode” selection. 2 If you are using IPoE or IPoA data mode, select IP Mode, then select either Static or DHCP (dynamic host configu- ration protocol). If you selected DHCP, do the following. HST-3000 ADSL2 Testing User’s Guide...
  • Page 49 If you are using Multi VLAN data mode and you specify the same settings for different VLANs, a “VLAN CONFLICT” error will be displayed. 4 Press the Home navigation key to return to the Data Summary screen. The WAN settings are specified. HST-3000 ADSL2 Testing User’s Guide...

  • Page 50: Specifying 802.1X Security Settings

    3 Press 3 then enter the Password. The 802.1x settings are specified. On the main screen, a lock icon indicates whether you are authenticated (indicated by a secured/closed lock) or unau- thenticated (an open lock). HST-3000 ADSL2 Testing User’s Guide...

  • Page 51: Specifying Stun Settings

    2, select Server Name, and then enter DNS name of the STUN server. 4 Select Server Port, and then enter the port number for the STUN server. 5 Select Client Port and then enter the client port number. HST-3000 ADSL2 Testing User’s Guide...

  • Page 52: Specifying Ppp Settings

    PPP screen (for example, PPP2, PPP3). To specify the PPP settings 1 Press the PPP soft key. The PPP Settings menu appears. 2 Select PPP Mode, and then select either Client or Server. HST-3000 ADSL2 Testing User’s Guide...

  • Page 53: Specifying Ping Settings

    Testing Data services Client is normally used. Use Server only when you have an ATU-C. This feature allows a remote ATU-R to estab- lish a PPP session with the HST-3000. NOTE: If you selected “Server” as the PPP mode, connect only to other devices with the same service name.

  • Page 54: Specifying Trace Route Settings

    The ping settings are specified. Specifying trace The following procedure describes how to specify trace route route settings settings. For all modes except TE mode, the WAN interface is the DSL connection to tip and ring. HST-3000 ADSL2 Testing User’s Guide...

  • Page 55: Specifying Ftp/Http Settings

    The following procedure describes how to specify FTP/HTTP HTTP settings (throughput) settings. To specify FTP/HTTP settings 1 Press the FTP/HTTP soft key. You may need to use the left or right arrow key to find the FTP/HTTP soft key. HST-3000 ADSL2 Testing User’s Guide...
  • Page 56 – Basic – the client sends the user name and password entered, with no security – Digest – the client sends the user name and password in a series of hashes for added security. The FTP/HTTP settings are specified. HST-3000 ADSL2 Testing User’s Guide...

  • Page 57: Specifying Atm Bert Settings

    5 Select Pattern Invert, and then select whether to invert the pattern. 6 Select Duration, and then select a test duration from the following: – Continuous – 1 Minute – 15 Minutes – 1 Hour – User Defined HST-3000 ADSL2 Testing User’s Guide...

  • Page 58: Connecting To The Line

    3 Connect to the CPE: a Connect one end of the Ethernet cable to the Ethernet jack on the top of the HST-3000. b Connect the other end of the cable to the PC, hub, or router. Use a shielded crossover cable if you are connecting to a PC.

  • Page 59: Testing Line Quality

    Chapter 2 ADSL2 Testing Testing Data services Testing line Once connected to the line, the HST-3000 gathers statistics for the line. These statistics are used to determine the line quality quality. To test line quality 1 Connect to the line.

  • Page 60: Performing A Ping Test

    Press the Home navigation key. d Press the Display soft key, and then select Data - IP. See if there are any error messages. e Locate the Actions soft key. 2 Press the Actions soft key. HST-3000 ADSL2 Testing User’s Guide...

  • Page 61: Releasing Ip Addresses

    4 Press the Results soft key to clear the results or save them to a text file. For more information on saving results and managing the files, see the HST-3000 Base Unit User’s Guide. The ping test is complete. Releasing IP The HST allows you to release allocated IP addresses, so it can be used by other equipment.

  • Page 62: Throughput Testing

    “FTP/HTTP results” on page 76 for information on inter- preting the results. ATM BERT The HST-3000 allows testing of the ATM layer using a bit error rate test (BERT). The following procedure describes how to testing perform an ATM BERT.

  • Page 63: Measuring Throughput Using Jdsu Qos

    This is a network testing tool that can using JDSU create TCP and UDP data streams and measure the HST-3000 ADSL2 Testing User’s Guide...

  • Page 64: Step 1: Specifying Test Settings

    Test Duration Specify the test duration in number of seconds, between 5 and 300 seconds (5 minutes). IP TOS Field Specify the Type of Service (TOS) byte. This is a whole number between 0 and 255. HST-3000 ADSL2 Testing User’s Guide...
  • Page 65 Specify the port number used for management messages. Username Specify the test duration in number of seconds, between 5 and 300 seconds (5 minutes). Password Specify the Type of Service (TOS) byte. This is a whole number between 0 and 255. HST-3000 ADSL2 Testing User’s Guide...

  • Page 66: Step 2: Measuring Throughput

    After specifying settings and connecting to the circuit, use the throughput JDSU QoS results to measure throughput. To measure throughput 1 If you haven’t already done so, connect the HST-3000 to the circuit under test. 2 Press the Display soft key and then select JDSU QoS Results.

  • Page 67: Finding Disturbers

    However, this process can help you isolate the frequency where the interference occurs. You can then use that information to identify possible sources of interference. To find disturbers 1 After running the test, press the Display soft key. HST-3000 ADSL2 Testing User’s Guide...
  • Page 68 Press the Cursor soft key. b Select Zoom in. 7 To view the BPT graph for higher frequencies, perform the following steps. a Press the Graphs soft key. b Select View Ext BPT graph. HST-3000 ADSL2 Testing User’s Guide...
  • Page 69 Chapter 2 ADSL2 Testing Finding disturbers The Extended BPT graph appears. 8 Find the corresponding tone in Table 7 on page HST-3000 ADSL2 Testing User’s Guide...
  • Page 70 HDSL passband max 392.4375 HDSL2 T1 passband center E1 passband center 1024 1022 By noting the frequency where the interference occurs, you can associate the affected frequencies with possible disturbers. Finding disturbers is complete. HST-3000 ADSL2 Testing User’s Guide...

  • Page 71: Saving Graphical Results

    The graph is saved to the following directory on the HST: /results/ADSL. The graph is saved as a bit map file with a .bmp file extension. For information about viewing and printing files on the HST, see the HST-3000 Base Unit User’s Guide. HST-3000 ADSL2 Testing User’s Guide...
  • Page 72 Chapter 2 ADSL2 Testing Saving graphical results HST-3000 ADSL2 Testing User’s Guide...

  • Page 73: Interpreting Test Results

    This chapter describes the test results that are gathered when running a test. Topics in this chapter include the following: – “About ADSL results” on page 56 – “Modem emulate results” on page 56 – “Data mode results” on page 66 HST-3000 ADSL2 Testing User’s Guide...

  • Page 74: About Adsl Results

    Chapter 3 Interpreting Test Results About ADSL results About ADSL results After the HST-3000 has synchronized with the DSLAM, the unit will immediately display results on the LCD. You can view many additional results by pressing the DISPLAY soft key and selecting other results screens.

  • Page 75: Summary Results

    32–8160 kbps (Dn) 32–12000 kbps (Up) 4-32 kbps 32–25000 kbps (Dn) Max rate Maximum attainable 32–1024 kbps (Up) 32 kbps upstream and down- 32–8160 kbps (Dn) stream rates 32–12000 kbps (Up) 32–25000 kbps (Dn) HST-3000 ADSL2 Testing User’s Guide...

  • Page 76: Error Results

    (selected on the General Setup menu), the range may be above 10M Error results This category provides both local and remote error statistics. Table 9 describes the error results for ADSL. Table 9 Error results Result Description Range Resolution Loss of signal. HST-3000 ADSL2 Testing User’s Guide...
  • Page 77 1 error Errored ATM cell head- ers that have been auto- matically corrected. Out of cell delineation 0–4294967295 errors 1 error Loss of cell delineation 0–4294967295 errors 1 error Loss of margin 0–4294967295 errors 1 error HST-3000 ADSL2 Testing User’s Guide...

  • Page 78: Performance Results

    10-7. Attenuation The degradation of signal strength in dB upstream and downstream. It is the differ- ence in Tx power from the transmitter to receiver. HST-3000 ADSL2 Testing User’s Guide...

  • Page 79: Signal Results

    ADSL using the “fast” method which does not protect data quite as well. This method is set by the DSLAM Training Time The number of seconds it took the HST-3000 to synchronize with the DSLAM. Num Syncs The number of synchronization attempts. it is...
  • Page 80 Current state of the modem. Estimated Length Estimated loop length. 1. The estimated loop length is a rough estimated based on attenuation. For a more accurate measure of loop length, use the TDR in Copper mode. HST-3000 ADSL2 Testing User’s Guide...

  • Page 81: Graphs

    Figure 2 shows an example of the standard range BPT graph. Figure 2 BPT graph Identity results This category provides the HST-3000 modem firmware revi- sion information, and the following information from the DSLAM (when synchronized). Table 12 describes the identity results.

  • Page 82: Event Log

    Down Rate lost The amount of downstream rate loss that is occurring due to the interfer- ence. Topology Estimate Signal Path Main path or bridged tap Length Lenght in feet of the main signal path. HST-3000 ADSL2 Testing User’s Guide...

  • Page 83: Microfilter Test

    Microfilter test The Microfilter test runs the same test as the background test but looks closer at the microfilter result, providing more confi- dence regarding missing microfilters. HST-3000 ADSL2 Testing User’s Guide...

  • Page 84: 30 Mhz Spectral Test

    Data mode results The following result categories are available in Data mode: – Data summary – IP – Ping – Trace route – ATM General – ATM OAM – ATM Channel – FTP/HTTP – JDSU QoS HST-3000 ADSL2 Testing User’s Guide...

  • Page 85: Data Summary

    Since ATM can carry different types of user data (such as web pages or voice), ATM layers are defined to carry the different types of data effectively. For normal, non-time sensitive data, such as e-mail and user files, AAL5 is used. HST-3000 ADSL2 Testing User’s Guide...

  • Page 86: Ip Results

    VLAN (for example, WAN2 Net Mask and WAN3 Net Mask). LAN IP Address The HST-3000's IP address to a PC or lap- top, hub or router connected to the HST-3000's ethernet port. (Through mode only)

  • Page 87: Ping Results

    The status of each VLAN. Only appears when using Multi VLAN data mode. LAN IP Address The HST-3000's IP address to a PC or lap- top, hub or router connected to the HST-3000's ethernet port. (Through mode only) LAN Net Mask The HST-3000’s netmask address for the...
  • Page 88 Chapter 3 Interpreting Test Results Data mode results the destination is alive and awake, how fast the ping went to the destination and back to the HST-3000, and if ping packets were dropped and lost along the way. Table 17 on page 70 describes the ping results.

  • Page 89: Trace Route Results

    Delay average. The average time in milli- seconds it has taken all transmitted pings to reach their destinations and receive replies back to the HST-3000. Delay Max The longest time in milliseconds it has taken any one transmitted ping to reach its destination and receive a reply back to the HST-3000.
  • Page 90 Chapter 3 Interpreting Test Results Data mode results HST-3000 provides a number of different ATM statistics (these are useful if IP pings don't work, but ATM cells are still being sent and received). Table 19 describes the test results for the general ATM cate- gory.

  • Page 91: Atm Oam Results

    ATM networks, the results HST-3000 supports the F5 loopback function to verify ATM level connectivity (analogous to IP ping, but F5 is only for ATM; IP ping does not apply to ATM and there is officially no such thing as an “ATM ping”).

  • Page 92: Atm Channel Results

    ATM network or segment. Delay Max Delay maximum. The longest time in millisec- onds that it took an HST-3000 F5 loop back request to return to the HST-3000. Delay Min Delay minimum. The shortest time in millisec- onds that it took an HST-3000 F5 loop back request to return to the HST-3000.
  • Page 93 Chapter 3 Interpreting Test Results Data mode results HST-3000 is connected to the access network (after ADSL synchronization is achieved). Table 21 describes the test results for the identity category. Table 21 ATM channel results Result Definition VPI/VCI The virtual path indicator and virtual circuit...

  • Page 94: Ftp/Http Results

    RX AAL5 Length Total number of ATM AAL5 frames Errors received by the HST-3000, which were too short or too long due to errors. RX AAL5 Aborts Total number of ATM AAL5 frames which were lost or dropped due to excessive errors.

  • Page 95: Atm Bert Results

    Number of injected errors transmitted. JDSU QoS Table 24 describes the JDSU QoS results. results Table 24 JDSU Qos results Result Description Test Type Describes the type of test, for example, UDP Download Only, or TCP Upload/Download. HST-3000 ADSL2 Testing User’s Guide...
  • Page 96 (upload). Packets Lost The number of packets lost. Loss Ratio Ratio of the number of lost packets to the total number of packets, if running a UDP test. For a TCP test, displays dashes. HST-3000 ADSL2 Testing User’s Guide...
  • Page 97 JDSU Qos results (Continued) Result Description Loss QoS Reports Pass/Fail for the Loss test. Jitter (ms) Reports the jitter if running a UDP test. For a TCP test, displays dashes. Jitter QoS Reports the jitter QoS. HST-3000 ADSL2 Testing User’s Guide...
  • Page 98 Chapter 3 Interpreting Test Results Data mode results HST-3000 ADSL2 Testing User’s Guide...

  • Page 99: Troubleshooting

    Troubleshooting Chapter 4 This chapter describes how to identify and correct problems related to the HST-3000. Topics discussed in this chapter include the following: – “Interpreting messages” on page 82 – “Resolving problems” on page 85 HST-3000 ADSL2 Testing User’s Guide...

  • Page 100: Interpreting Messages

    Chapter 4 Troubleshooting Interpreting messages Interpreting messages The HST-3000 provides error messages when it is unable to complete a command. This information enables you to solve simple problems that may be a result of data input. Each message is listed in...
  • Page 101 The unit was unable to Check the destination address UNREACH connect to the specified or name. address. HOST UNREACH- The unit was unable to Check the destination address ABLE reach the specified host. or name. HST-3000 ADSL2 Testing User’s Guide...
  • Page 102 TOS NOT SUPP The type of service is not Try a different IP address. supported on the network. TOS NOT SUPP The type of service is not Try a different IP address. HOST supported on the host. HST-3000 ADSL2 Testing User’s Guide...

  • Page 103: Resolving Problems

    UNREACHABLE resolve the IP address with Ethernet protocol. Resolving problems If you are having trouble with the HST-3000, the following sections describe common problems and solutions. You should verify whether your problem is listed here before contacting technical assistance. Operating the...

  • Page 104: Performing Tests

    The headset is not used for ADSL testing (only used for POTS and VoIP calls). Performing The following section addresses questions that may be asked about completing tests with the HST-3000. There are two tests sections included: – General – ADSL tests...

  • Page 105: Hst-3000 Adsl2 Testing User's Guide

    This could be caused by bridged taps, cable crosstalk, or AM radio. Use the HST-3000 to check physical conditions: DVOM, balance, opens, and use the TDR to check for bridged taps. Check the DSLAM configuration - the max rate may be limited there.
  • Page 106 If the Ethernet cable is not hooked up, or is hooked up incorrectly, a packet will not be sent. Thus the Ethernet statistics will not increment. Check the Ethernet link light on the HST-3000 Ethernet jack. It should be green. HST-3000 ADSL2 Testing User’s Guide...
  • Page 107 I did not get a green Data LED and pings are not working. Resolution Check the encapsulation and the mode. The wrong protocol may be in use. Issue I have a PPPoA service and I get a PPP TIMEOUT message HST-3000 ADSL2 Testing User’s Guide...
  • Page 108 Verify that the VPI-VCI is correct. Verify that the encapsulation is correct. Verify that the DHCP server isn't out of addresses. (Contact your IT department or help desk.) Issue I get an INVALID CONFIG message. HST-3000 ADSL2 Testing User’s Guide...
  • Page 109 Make sure the HST Data mode is set correctly for the type of circuit under test (such as PPPoE versus IPoE). Make sure you are not behind a firewall; they can block ping responses from reaching the host. HST-3000 ADSL2 Testing User’s Guide...
  • Page 110 ADSL modem errors. If you receive one of these messages, try the following: Try to resync with the line. Check the configuration of the HST-3000. Check the configuration of the DSLAM. Issue The Sync LED is lit, but the Data LED is not lit.
  • Page 111 ADSL2/2+ is the standard that dure for adjusting line speeds defines them: and other communication settings automatically between • ADSL1: ITU G.992.2. two computers during data • ADSL2: ITU G.992.3 and .4. transfer. • ADSL2+: ITU G.992.5. HST-3000 ADSL2 Testing User’s Guide...
  • Page 112 Most other data units can vary in length, but a DSLAM — Digital Subscriber cell is fixed in size. This helps Line Access Multiplexer. cut down on network delays and variations in the delay through a network. HST-3000 ADSL2 Testing User’s Guide...
  • Page 113 Ethernet — A local area based on traffic. network (LAN) wiring scheme. You can use the HST-3000 to L3 — Low power mode where emulate Ethernet terminal each end enters sleep mode equipment to test connectivity.
  • Page 114 Ethernet cally switch users' messages network cabling plugs into a between modems, rather than computer. requiring a modem to be dedi- cated to a particular user on a network. HST-3000 ADSL2 Testing User’s Guide...
  • Page 115 Internet Protocol (IP) addresses allocated to them RHNC — Relative humidity by the NAT. STUN works with non-condensing. many existing NATs, and does not require any special behavior from them. As a result, it allows HST-3000 ADSL2 Testing User’s Guide...
  • Page 116 HST-3000 is connected to the customer premise site of the DSLAM without a PC. You can then use the HST-3000 to ping. Through Mode — The WAN — Wide Area Network. A HST-3000 is connected with a...
  • Page 117 39–40 test 44–45 ATM results Data errors 66, channel general Data LED Data settings, specifying 26–28 ATU-C mode Defaults, restoring modem connecting to the line specifying settings Delay testing 21–24 DHCP server 82, HST-3000 ADSL2 Testing User’s Guide...
  • Page 118 FTP, specifying settings 37–38 Messages, interpreting G.Lite Modem Gateway 91, emulate mode emulation testing 11–20 Graphical results pooling description redundancy finding disturbers specifying settings 12–16 saving Modem settings restoring defaults specifying 21–22 Modes HTTP, specifying settings 37–38 HST-3000 ADSL2 Testing User’s Guide...
  • Page 119 Testing ADSL through mode error event log data through mode graphs emulating an ADSL modem 11– performance 60, line quality, ATU-C mode ping physical layer signal Through mode, data testing summary Tones, noise sources troubleshooting HST-3000 ADSL2 Testing User’s Guide...
  • Page 120 ADSL tests troubleshooting 82, 89, general operation Virtual channel indicator tests Virtual path indicator defined setting troubleshooting 82, 89, Upstream Rate User documentation ADSL testing user’s guide xiii base unit user’s guide xiii defined specifying settings HST-3000 ADSL2 Testing User’s Guide...
  • Page 122 Communications Test and Measurement Regional Sales North America Latin America Asia Pacific EMEA www.jdsu.com Toll Free: 1 855 ASK JDSU Tel: +55 11 5503 3800 Tel: +852 2892 0990 Tel: +49 7121 86 2222 Tel: +1 240 404 2999 Fax:+55 11 5505 1598 Fax:+852 2892 0770 Fax:+49 7121 86 1222 Fax:+1 240 404 2195...

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