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Lucent Stinger Manual

Adsl 24-port line interface module (lim)
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Stinger
®
ADSL 24-Port Line Interface Module (LIM) Guide
For software version 9.2-167
December 2001

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  • Page 1 Stinger ® ADSL 24-Port Line Interface Module (LIM) Guide For software version 9.2-167 December 2001...
  • Page 2 Radio and Telecommunications Technical Equipment (RTTE) Directive 1999/5/EC. To view the official Declaration of Conformity certificate for this equipment, according to EN 45014, access the Lucent INS online documentation library at http://www.lucentdocs.com/ins. Safety, Compliance, and Warranty Information Before handling any Lucent Access Networks hardware product, read the Edge Access Safety and Compliance Guide included in your product package.

  • Page 3: Customer Service

    Alternatively, call 1-866-LUCENT8 (1-866-582-3688) from any location in North America for a menu of Lucent services. Or call +1 510-769-6001 for an operator. If you do not have an active services agreement or contract, you will be charged for time and materials.

  • Page 5: Table Of Contents

    Overview of the LIM-Sparing-Config profile ..............2-2 Manual LIM redundancy ....................2-4 Automatic LIM redundancy.................... 2-4 LIM redundancy with IRMs and LPM-Rs..............2-7 Checking LIM redundancy status ................... 2-8 Checking status with the Rearslot command ..............2-9 Stinger® ADSL 24-Port LIM Guide...
  • Page 6 Contents Configuring LIM port redundancy..................2-10 Enabling LIM port redundancy..................2-11 Manual LIM port redundancy..................2-12 Automatic LIM port redundancy .................. 2-12 Checking the status of extended LIM port redundancy ..........2-13 Stinger® ADSL 24-Port LIM Guide...
  • Page 7 Future support: Noise margins and dynamic rate adaptation relationship . 1-14 Figure 1-4 ADSL ATM LIM configuration ..............1-21 Figure 2-1 LIM redundancy in a Stinger FS unit ............2-2 Figure 2-2 LIM port redundancy on a Stinger FS unit..........2-11 Stinger® ADSL 24-Port LIM Guide...
  • Page 9 Tables Table 1-1 ADSL 24-port LIM specifications ..............1-2 Table 1-2 ADSL 24-port LIM status lights ..............1-4 Stinger® ADSL 24-Port LIM Guide...

  • Page 11: About This Guide

    (LIM) and includes configuration examples and module specifications. This guide also describes how to configure LIM redundancy. Warning: Before installing your Stinger unit, be sure to read the safety instructions in the Edge Access Safety and Compliance Guide. For information specific to your unit, see the “Safety-Related Physical, Environmental, and Electrical Information”...

  • Page 12: Stinger Documentation Set

    Warning: Warns of danger of electric shock. Warning: Stinger documentation set The Stinger documentation set consists of the following manuals, which can be found at http://www.lucentdocs.com/ins • Read me first: – Edge Access Safety and Compliance Guide. Contains important safety instructions and country-specific information that you must read before installing a Stinger unit.
  • Page 13 About This Guide Stinger documentation set – Module guides. For each Stinger line interface module (LIM), trunk module, or other type of module, an individual guide describes the module's features and provides instructions for configuring the module and verifying its status.

  • Page 15: Configuring An Adsl 24-Port Line Interface Module (Lim)

    FS and Stinger LS chassis. Installing an ADSL 24-port LIM Install the ADSL 24-port LIM in the same manner as other LIMs. See the Stinger Getting Started Guide for details. After installation, the module must be configured following the instructions in this guide.

  • Page 16: Module Specifications

    Several status lights on the front panel of the ADSL 24-port LIM indicate the status of the module and its ports. Figure 1-1 shows the front panel and status lights of the ADSL 24-port LIM. Stinger® ADSL 24-Port LIM Guide...

  • Page 17: Figure 1-1 Adsl 24-Port Lim

    Configuring an ADSL 24-Port Line Interface Module (LIM) Status indicators Figure 1-1. ADSL 24-port LIM Stinger® ADSL 24-Port LIM Guide...

  • Page 18: Interpreting Adsl 24-Port Lim Status Lights

    If the light is not illuminated, the port is inactive. Configuring ATM ADSL-DMT interfaces A Stinger unit creates an AL-DMT profile for each ADSL-DMT interface in the system. For example, for an ASL-DMT LIM installed in slot 14, the system creates the following profiles: admin>...

  • Page 19: Overview Of The Al-Dmt Profile Parameters

    Various discrete multitone (DMT) standards define the fast and interleave data latencies for each direction (upstream and downstream) of ADSL transmission. In the Stinger AL-DMT profiles, you set parameters to specify the data rate, signal quality and power, and data delay of the interface.

  • Page 20: Line Activation And Dmt Parameters

    : slot : port format (for example, 1:2:3 ), but you can assign a text string of up to 16 characters. Physical-Address Physical address of the interface in the Stinger unit. Enabled Enables the ADSL-DMT interface. An ADSL-DMT line is disabled until you activate the line in the AL-DMT profile.
  • Page 21 Trellis-Encoding Enable or disable trellis encoding. Trellis encoding is specified in the DMT standard. Disabling this parameter (no) can increase performance, but at the cost of becoming noncompliant with the standard. The default is yes. Stinger® ADSL 24-Port LIM Guide...

  • Page 22: Rate-Adaptive Mode Parameters

    The line does not use a higher bit rate, even if it can support one. For details about specifying bit rates, see “Fast and interleaved bit-rate parameters” on page 1-10. For information about defining acceptable noise margins, see “Noise margin parameters” on page 1-12. Stinger® ADSL 24-Port LIM Guide...

  • Page 23: Power-Level Parameters And Power Spectral Density (Psd)

    -34 through -52 in even-number increments. If you lower the value from its default value of -40, the line consumes less power but also has a lower capacity. Increasing the value can boost the PSD to achieve a higher capacity. Stinger® ADSL 24-Port LIM Guide...

  • Page 24: Fast And Interleaved Bit-Rate Parameters

    Note that in the current software version, both upstream and downstream traffic must use the same channel. [in AL-DMT/{ any-shelf any-slot 0 }:fast-path-config] min-bitrate-up = 128 min-bitrate-down = 128 max-bitrate-up = 1000 max-bitrate-down = 8000 planned-bitrate-up = 512 planned-bitrate-down = 1000 1-10 Stinger® ADSL 24-Port LIM Guide...
  • Page 25 Constant bit rate for downstream traffic when operator-controlled rate-adaptive mode is in use. Valid values are from 0Kbps through 15,000Kbps. The default value for the ADSL 24-port LIM is 1000Kbps. Note: Not configured for automatic-at-startup rate adaptation. Stinger® ADSL 24-Port LIM Guide 1-11...

  • Page 26: Interleaving Delay Parameters

    15dB. Figure 1-2 illustrates the relationship of margin parameters to power adjustments. Figure 1-2. Relationship between noise margin parameters and power adjustments Reduce output power Maximum additional Steady-state operations noise margin Target noise margin Minimum noise margin Increase output power 0dB margin 1-12 Stinger® ADSL 24-Port LIM Guide...
  • Page 27 Configuring an ADSL 24-Port Line Interface Module (LIM) Configuring ATM ADSL-DMT interfaces On many loops, the Stinger unit uses large power margins. To avoid excessive power margins, you can configure the Stinger unit with a maximum downstream noise margin value that it translates into a maximum power output value.

  • Page 28: Dynamic Rate-Adaptive Noise Margin Parameters

    0dB, before attempting to reduce power output. The valid range is 0dB through 31dB, with a practical limitation of 15dB set by the modem software. On a system with typical noise patterns, Lucent recommends approximately 8dB. Enables or disables the maximum downstream noise margin.

  • Page 29: Configuring Call-Control

    Configuring call-control Using the call-control procedures, you can configure the Stinger to allow connections to be established even when the line state is not fully up. You can configure the unit to use these procedures system-wide or on a per-port basis on the DS3-ATM, OC3-ATM, and E3-ATM trunk modules and on the SDSL, ADSL, and SHDSL/HDSL2 LIMs.
  • Page 30 Configuring an ADSL 24-Port Line Interface Module (LIM) Configuring call-control By default, the Stinger unit monitors the physical line state of its interfaces and allows connections to be established only when the line state is fully up. Following are examples of the relevant parameters, shown with default settings:...

  • Page 31: Modifying Call Control To Support Dual Latency

    Both upstream and downstream latencies must be set to both. You cannot have dual latency in one direction and single latency in the other. Enable the line and set latency as follows: super> read al-dmt {1 6 2} AL-DMT/{ shelf-1 slot-6 2 } read super> set en = yes Stinger® ADSL 24-Port LIM Guide 1-17...
  • Page 32 = 32 max-bitrate-up = 1000 max-bitrate-down = 8000 planned-bitrate-up = 512 planned-bitrate-down = 1000 admin> set max-bitrate-up = 128 admin> set max-bitrate-down = 128 admin> list [in AL-DMT/{ shelf-1 slot-6 2 }:fast-path-config (changed)] 1-18 Stinger® ADSL 24-Port LIM Guide...
  • Page 33 = 4 aal-type = aal-0 early-packet-discard = no partial-packet-discard = no tag-or-discard = discard sub-channel = 1 Note: Use subchannel one for fast latency. admin> write ATM-QOS/voice written admin> new atm-qos data ATM-QOS/data read Stinger® ADSL 24-Port LIM Guide 1-19...
  • Page 34 = voice admin> set usr-dn = voice admin> write CONNECTION/voice-6-2 written admin> new conn data-6-2 CONNECTION/data-6-2 read admin> set active = yes admin> set atm-options vpi = 0 admin> set atm-options vci = 55 1-20 Stinger® ADSL 24-Port LIM Guide...

  • Page 35: Examples Of Adsl-Dmt Interface Configuration

    = data admin> write CONNECTION/data-6-2 written Examples of ADSL-DMT interface configuration In Figure 1-4, an ADSL-DMT interface in a Stinger unit is configured to support a rate-adaptive connection to a DSL-CELL-50A CPE. Figure 1-4. ADSL ATM LIM configuration Ethernet...

  • Page 36: Checking Status Of Adsl-Dmt Interface

    = { shelf-1 slot-3 4 } line-state = active spare-physical-address = { any-shelf any-slot 0 } sparing-state = sparing-none sparing-change-reason = unknown sparing-change-time = 0 sparing-change-counter = 0 vpi-vci-range = vpi-0-15-vci-32-127 vp-switching-vpi = 15 1-22 Stinger® ADSL 24-Port LIM Guide...

  • Page 37: Checking Status Of The Physical Interface

    The time that the last change in redundancy state occurred. Sparing-Change-Counter Each redundancy change, for example, primary to secondary, secondary to primary, increments the counter. The counter is reset when the Stinger starts or restarts. VPI-VCI-Range The valid range of VPI and VCI for the circuits established for the line.
  • Page 38 ). The none setting indicates that the line is not operational. Firmware-Ver Version number of the ADSL modem firmware. ANSI-ADSL-Ver Supported issue of the ANSI T1.413 standard (Issue 2). Hardware-Ver Hardware version of the ADSL modem. 1-24 Stinger® ADSL 24-Port LIM Guide...

  • Page 39: Displaying Adsl-Dmt Port Status And Nailed Groups

    Physical-Statistic parameters shown with sample settings for an active interface: [in AL-DMT-STAT/{ shelf-1 slot-3 4 }:physical-statistic] line-up-timer = { 0 0 1 } rx-signal-present = yes up-dwn-cntr = 3 self-test = passed noise-margin-down = 6 attenuation-down = 56 output-power-down = 19 Stinger® ADSL 24-Port LIM Guide 1-25...
  • Page 40 Header error control (HEC) errors detected by the CPE ATU. Received-Rs-Blcks Number of received Reed-Solomon blocks. Enabled on 24-port and 48-port LIMs only. Transmitted-Rs-Blocks Number of transmitted Reed-Solomon blocks. Incoming-Cells Number of incoming cells. Outgoing-Cells Number of outgoing cells. 1-26 Stinger® ADSL 24-Port LIM Guide...

  • Page 41: Configuring Lim And Lim Port Redundancy

    LIM with a PSM or CLT module plugged in behind or next to it. For example, a Stinger FS unit configured with 14 ADSL 24-port LIMs can be set up with the following module pairs: •...

  • Page 42: Overview Of The Lim-Sparing-Config Profile

    LIM. Figure 2-1 illustrates LIM redundancy for a failed SDSL LIM in slot 4 of a Stinger FS chassis. A Stinger LS chassis has its LPMs and PSMs or CLT modules next to its LIMs rather than behind them as shown here.
  • Page 43 LIM. number For example, suppose a Stinger unit is configured with an ADSL LIM in slot 1 and an SDSL LIM in slot 4. Slot 14 contains a spare ADSL LIM with a PSM, and slot 16 contains a spare SDSL LIM also with a PSM.

  • Page 44: Manual Lim Redundancy

    LIM 16 ACTIVATED as spare for LIM 4 Automatic LIM redundancy Automatic LIM redundancy detects a LIM failure and automatically sets up all the virtual channels of that LIM on the spare. When automatic LIM redundancy is activated, the primary Stinger® ADSL 24-Port LIM Guide...
  • Page 45 LIM-Sparing-Config profile. For example, suppose slot 16 in a Stinger FS units contains a spare SDSL LIM, slots 1 through 7 contain SDSL LIMs, but slots 10 through 15 contain ADSL LIMs. Only the parameters contained in LIM-Sparing-Config subprofiles 1 through 7 are applied to automatically replace the SDSL LIMs in slots 1 through 7.
  • Page 46 In the LIM-Sparing-Config profile for the spare LIM, set the sparing-mode parameter to automatic. For example, if you install a spare SDSL LIM in slot 15 of a Stinger FS unit and want to activate automatic LIM redundancy for the SDSL LIMs in slots 1 through 7, proceed as follows: List the Auto-LIM-Sparing-Config profile for slot 1.

  • Page 47: Lim Redundancy With Irms And Lpm-Rs

    For example, if a Stinger unit has an SDSL LIM and an IRM installed in slot 16, and it also has an SDSL LIM with an LPM-R installed in slot 4, you must first create a LIM-Sparing-Config profile for slot 16: admin>...

  • Page 48: Checking Lim Redundancy Status

    Slot number of the LIM being replaced by the spare LIM. spared-slot-number How redundancy is activated. Valid values are sparing-change-reason inactive, automatic, and manual. Time that the last change in redundancy state occurred. sparing-change-time Stinger® ADSL 24-Port LIM Guide...

  • Page 49: Checking Status With The Rearslot Command

    IRMs or LPM-Rs are reported as Empty by the rearslot command. Note: When a copper loop is being tested on a Stinger LS unit with a PSM or a CLT module, the rearslot command does not display any midplane sparing bus usage.

  • Page 50: Configuring Lim Port Redundancy

    LIM in slot 14. A subsequent failure of port 6 on an SDSL LIM in slot 4 can be backed up by port 6 on the spare SDSL LIM in slot 16. This example is illustrated for a Stinger FS chassis in Figure 2-2.

  • Page 51: Enabling Lim Port Redundancy

    Configuring LIM and LIM Port Redundancy Configuring LIM port redundancy Figure 2-2. LIM port redundancy on a Stinger FS unit When a port on a LIM that is being backed up is replaced, the virtual channels for that port are terminated and set up on the spare.

  • Page 52: Manual Lim Port Redundancy

    LIM port that was replaced. For example, suppose a Stinger FS unit is equipped with an ADSL LIM in slot 1 and an SDSL LIM in slot 4. Spare LIMs are located in slots 14 and 16 respectively. Port 2 fails on the ADSL LIM, and port 6 fails on the SDSL LIM.

  • Page 53: Checking The Status Of Extended Lim Port Redundancy

    [in SDSL-STAT/{ shelf-1 slot-4 6 }] spare-physical-address = { shelf-1 slot-16 6 } sparing-state = primary-inactive sparing-change-reason = manual sparing-change-time = 309108872 sparing-change-counter = 1 Parameter Indicates Shelf, slot, and port number of spare LIM. spare-physical-address Stinger® ADSL 24-Port LIM Guide 2-13...
  • Page 54 Time that the last change in redundancy state occurred. sparing-change-time Number of redundancy changes (for example, primary to sparing-change-counter secondary or secondary to primary). The counter is reset to zero each time the Stinger unit is turned on. 2-14 Stinger® ADSL 24-Port LIM Guide...

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