Lucent Technologies Stinger STGR-LIM-AC-48 User manual

Stinger®
ADSL 48-Port Annex C Line Interface Module (LIM) Guide
For software version 9.2-167
December 2001

Lucent Technologies
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Stinger® ADSL 48-Port Annex C LIM Guide iii
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Stinger®ADSL 48-Port Annex C LIM Guide v
Contents
Customer Service..................................................................................................................... iii
About This Guide.............................................................................. xi
What is in this guide.................................................................................................................. xi
What you should know ............................................................................................................. xi
Documentation conventions...................................................................................................... xi
Stinger documentation set.......................................................................................................xii
Chapter 1 Configuring an ADSL 48-Port Annex C
Line Interface Module (LIM) ........................................................... 1-1
Installing an ADSL 48-port Annex C LIM ........................................................................... 1-1
Module specifications ............................................................................................................ 1-1
Interpreting ADSL 48-port Annex C LIM status lights......................................................... 1-2
Configuring ADSL Annex C interfaces................................................................................. 1-3
Overview of AL-DMT profile........................................................................................ 1-4
AL-DMT parameters............................................................................................... 1-5
Line-Config subprofile ............................................................................................ 1-5
Fast and interleaved bit-rate parameters......................................................................... 1-9
The Fast-Path-Config subprofile............................................................................. 1-9
The Interleave-Path-Config subprofile.................................................................. 1-10
Margin-Config subprofile...................................................................................... 1-12
Configuring call control....................................................................................................... 1-14
Checking status of ADSL DMT interfaces.......................................................................... 1-16
AL-DMT-Stat profile.................................................................................................... 1-16
Checking status of physical interface.................................................................... 1-17
Displaying ADSL DMT port status and nailed groups................................................. 1-18
Obtaining statistics about operations..................................................................... 1-19
Chapter 2 Configuring LIM and LIM Port Redundancy................................. 2-1
Overview of LIM and LIM port redundancy......................................................................... 2-1
Configuring LIM redundancy................................................................................................ 2-1
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...................................................................... 2-6
Checking LIM redundancy status................................................................................... 2-8
Checking status with the Rearslot command.................................................................. 2-9
Configuring LIM port redundancy......................................................................................... 2-9
Enabling LIM port redundancy..................................................................................... 2-11
Manual LIM port redundancy....................................................................................... 2-11
Automatic LIM port redundancy.................................................................................. 2-12

vi Stinger®ADSL 48-Port Annex C LIM Guide
Contents
Checking the status of extended LIM port redundancy................................................ 2-13

Stinger®ADSL 48-Port Annex C LIM Guide vii
Figures
Figure 1-1 ADSL 48-port Annex C LIM ....................................................................... 1-2
Figure 1-2 Relationship between noise margin parameters and power adjustments.... 1-12
Figure 1-3 Future support: How noise margins relate to dynamic rate adaptation...... 1-14
Figure 2-1 LIM redundancy in a Stinger FS .................................................................. 2-2
Figure 2-2 LIM port redundancy on a Stinger FS........................................................ 2-10

Stinger®ADSL 48-Port Annex C LIM Guide ix
Tables
Table 1-1 ADSL 48-port Annex C LIM status light..................................................... 1-3
Table 1-2 Supported ADSL mode, bitmap, and latency combinations......................... 1-4

Stinger®ADSL 48-Port Annex C LIM Guide xi
About This Guide
What is in this guide
This guide describes how to configure and monitor the Stinger 48-port ADSL Annex C line
interface module (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”appendix in the Getting
Started Guide for your Stinger unit.
What you should know
To make use of the procedures and sample configurations in this guide, you should have a
general knowledge of Stinger products and a working knowledge of the command-line
interface (CLI). You should understand the fundamental concepts of digital subscriber line
(DSL) technology and be familiar with the relationship between DSL interfaces and associated
configuration profiles.
Documentation conventions
Following are the special characters and typographical conventions that might be used in this
manual:
Convention Meaning
Monospace text Represents text that appears on your computer’s screen, or that could
appear on your computer’s screen.
Boldface
monospace text Represents characters that you enter exactly as shown (unless the characters are also in italics—see Italics, below). If you could
enter the characters but are not specifically instructed to, they do not
appear in boldface.
Italics Represent variable information. Do not enter the words themselves in
the command. Enter the information they represent. In ordinary text,
italics are used for titles of publications, for some terms that would
otherwise be in quotation marks, and to show emphasis.

xii Stinger®ADSL 48-Port Annex C LIM Guide
About This Guide
Stinger documentation set
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.
–TAOS Command-Line Interface Guide. Introduces the TAOS command-line
environment and shows you how to use the command-line interface effectively. This
guide describes keyboard shortcuts and introduces commands, security levels, profile
structure, and parameter types.
•Installation and basic configuration:
–Getting Started Guide for your unit. Shows how to install your Stinger chassis and
hardware. This guide also shows you how to use the command-line interface to
configure and verify IP access and basic access security on the unit, and how to
configure Stinger control module redundancy.
[ ] Square brackets indicate an optional argument you might add to a
command. To include such an argument, type only the information
inside the brackets. Do not type the brackets unless they appear in
boldface.
| Separates command choices that are mutually exclusive.
> Points to the next level in the path to a parameter or menu item. The
item that follows the angle bracket is one of the options that appear
when you select the item that precedes the angle bracket.
Key1-Key2 Represents a combination keystroke. To enter a combination
keystroke, press the first key and hold it down while you press one or
more other keys. Release all the keys at the same time. (For example,
Ctrl-H means hold down the Control key and press the H key.)
Press Enter Means press the Enter, or Return, key or its equivalent on your
computer.
Note: Introduces important additional information.
!
Caution: Warns that a failure to follow the recommended procedure could result
in loss of data or damage to equipment.
!
Warning: Warns that a failure to take appropriate safety precautions could result
in physical injury.
Warning:
Warns of danger of electric shock.
Convention Meaning

About This Guide
Stinger documentation set
Stinger®ADSL 48-Port Annex C LIM Guide xiii
–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.
•Configuration:
–Stinger ATM Configuration Guide. Describes how to use the command-line interface
to configure Asynchronous Transfer Mode (ATM) operations on a Stinger unit. The
guide explains how to configure permanent virtual circuits (PVCs), and shows how to
use standard ATM features such as quality of service (QoS), connection admission
control (CAC), and subtending.
–Stinger Private Network-to-Network Interface (PNNI) Supplement. Provides
quick-start instructions for configuring PNNI and soft PVCs (SPVCs), and describes
the related profiles and commands in the Stinger command-line interface.
–Stinger SNMP Management of the ATM Stack Supplement. Describes SNMP
management of ATM ports, interfaces, and connections on a Stinger unit to provide
guidelines for configuring and managing ATM circuits through any SNMP
management utility.
–Stinger T1000 Module Routing and Tunneling Supplement. Describes how to
configure the Layer 3 routing and virtual private network (VPN) capabilities
supported by a Stinger T1000 module.
–TAOS RADIUS Guide and Reference. Describes how to set up a TAOS unit to use the
Remote Authentication Dial-In User Service (RADIUS) server and contains a
complete reference to RADIUS attributes.
•Administration and troubleshooting:
–Stinger Administration Guide. Describes how to administer the Stinger unit and
manage its operations. Each chapter focuses on a particular aspect of Stinger
administration and operations. The chapters describe tools for system management,
network management, and Simple Network Management Protocol (SNMP)
management.
•Reference:
–Stinger Reference. An alphabetic reference to Stinger profiles, parameters, and
commands.
–TAOS Glossary. Defines terms used in documentation for Stinger units.

Stinger®ADSL 48-Port Annex C LIM Guide 1-1
1
Configuring an ADSL 48-Port Annex C
Line Interface Module (LIM)
The Stinger ADSL 48-port Annex C Line Interface Module (LIM) provides 48 asymmetric
digital subscriber line (ADSL) interfaces that support high-speed, asymmetric data transfer.
The module supports the ITU G.992.1, G.992.2, G.994.1, and G.997.1 protocols.
The ADSL 48-port Annex C LIM, product code STGR-LIM-AC-48, supports Annex C in the
Stinger LS chassis only.
Note: The ADSL 48-port Annex C LIM is designed to be used in a Stinger unit that is
equipped with the model A-J control module (STGR-CM-A-J). The A-J control module
supplies the 400Hz clock required by Annex C ADSL. The model A-J control module operates
only with the Stinger LS unit, model STGRLS-1-J or STGRLS-2-J.
Installing an ADSL 48-port Annex C LIM
The ADSL 48-port Annex C LIM is installed in a Stinger unit in the same manner as any other
LIM. See the Getting Started Guide for your unit for details. After installation, configure the
module following the instructions in this document.
Module specifications
The specifications for the ADSL 48-port Annex C LIM are as follows:
Installing an ADSL 48-port Annex C LIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Module specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Interpreting ADSL 48-port Annex C LIM status lights. . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Configuring ADSL Annex C interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Configuring call control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Checking status of ADSL DMT interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Physical dimensions Height: 15 inches (38.1cm)
Width: 1.06 inches (2.69cm)
Depth: 9 inches (22.8cm)
Weight: 4.0 pounds (1.8kg)
Power requirements 84 W (typical).

1-2 Stinger®ADSL 48-Port Annex C LIM Guide
Configuring an ADSL 48-Port Annex C Line Interface Module (LIM)
Interpreting ADSL 48-port Annex C LIM status lights
Interpreting ADSL 48-port Annex C LIM status lights
Several status lights on the front panel of the ADSL 48-port Annex C LIM indicate the status
of the module and its ports. Figure 1-1 shows the front panel and status lights of the ADSL
Annex C LIM.
Figure 1-1. ADSL 48-port Annex C LIM
Temperature range LT version: 32°F to 131°F (0°C to 55°C).
Relative humidity 10% to 90% (noncondensing).
Physical connectors USOC RJ21X 50-pin telephone industry standard connector.
Must meet JIS C5973 standards.
Interface Standards ITU G.992.1 Annex C (G.dmt).
ITU G.992.2 Annex C (G.lite).
ITU G.997.1 (physical layer management).
ANSI T1E1.4/99-006 (draft).

Configuring an ADSL 48-Port Annex C Line Interface Module (LIM)
Configuring ADSL Annex C interfaces
Stinger®ADSL 48-Port Annex C LIM Guide 1-3
All status lights illuminate briefly upon startup or restart, then remain dark until the module
passes its power-on self test (POST). When the module passes the POST and becomes
operational, the ACTIVE light illuminates. It is the only light that is on during normal
operation.
Table 1-1 explains the ADSL 48-port Annex C LIM status lights.
Configuring ADSL Annex C interfaces
The ADSL Annex C module supplies 48 ADSL discrete multitone (ADSL-DMT) interfaces
per LIM. A Stinger unit creates an Al-Dmt profile for each ADSL-DMT interface in the
system. For example, for an ADSL 48-port LIM installed in slot 1, the system creates the
following profiles:
admin> dir al-dmt
28 06/20/1999 00:27:37 { shelf-1 slot-1 1 } 1:14:1
28 06/20/1999 00:27:37 { shelf-1 slot-1 2 } 1:14:2
28 06/20/1999 00:27:37 { shelf-1 slot-1 3 } 1:14:3
28 06/20/1999 00:27:37 { shelf-1 slot-1 4 } 1:14:4
28 06/20/1999 00:27:37 { shelf-1 slot-1 5 } 1:14:5
28 06/20/1999 00:27:37 { shelf-1 slot-1 6 } 1:14:6
28 06/20/1999 00:27:37 { shelf-1 slot-1 7 } 1:14:7
28 06/20/1999 00:27:37 { shelf-1 slot-1 8 } 1:14:8
28 06/20/1999 00:27:37 { shelf-1 slot-1 9 } 1:14:9
29 06/20/1999 00:27:37 { shelf-1 slot-1 10 } 1:14:10
29 06/20/1999 00:27:37 { shelf-1 slot-1 11 } 1:14:11
...
Table 1-1. ADSL 48-port Annex C LIM status light
Light Color Indication
STBY Orange The module is a designated spare. The control module
switches traffic to the module if one of the other
modules fails.
ACTIVE Green The module or port is fully operational and no errors
have been detected.
FAULT Orange The module failed to pass its POST.
BYPASS Orange The module is in bypass mode. (The module
redundancy feature is activated.)
PORT Green The local and remote ends of the physical line have
achieved frame synchronization, and the local end of
the ATM link has achieved cell delineation.
If the light is not illuminated, the port is inactive.

1-4 Stinger®ADSL 48-Port Annex C LIM Guide
Configuring an ADSL 48-Port Annex C Line Interface Module (LIM)
Configuring ADSL Annex C interfaces
Overview of AL-DMT profile
Each direction of traffic (upstream and downstream) on an Annex C ADSL line can have a
different minimum and maximum bit rate. The maximum bit rate depends upon the ADSL
mode, bitmap, and latency options that are selected. The bitmap can be either dual bitmap
(DBM) or far-end cross-talk bitmap (FBM). The six combinations in Table 1-2 are supported.
Choose the best combination of ADSL mode, bitmap, latency and data rate to meet the needs
of your customer. Consider the following factors:
•Select the ADSL mode based on the customer premises equipment (CPE), data rate and
splitter requirements.
•Select the latency based on error correction and stability needs. Fast has minimum latency
but depending on line conditions can be susceptible to increased errors and decreased
stability. Interleave has increased latency but less errors.
•Select the bitmap based on data rate, loop length and time-code modulation (TCM)-ISDN
interference factors. DBM is superior for shorter loops but affects TCM-ISDN service.
FBM is superior for loops greater than 2km and has no effect on TCM-ISDN service. Both
DBM and FBM are not affected by TCM-ISDN service.
An AL-DMT profile contains the following parameters and subprofiles as shown below.
[in AL-DMT/{ any-shelf any-slot 0 }]
name = ""
physical-address* = { any-shelf any-slot 0 }
enabled = no
sparing-mode = inactive
ignore-lineup = system-defined
line-config = { 1 15 automatic-at-startup automatic-at-startup 100 100
13 20 48+
fast-path-config = { 128 128 1000 8000 512 1000 }
interleave-path-config = { 128 128 1000 8000 512 1000 16 16 }
margin-config = { 6 6 6 6 31 31 0 0 0 0 0 0 0 0 }
thresh-profile = default
Table 1-2. Supported ADSL mode, bitmap, and latency combinations
ADSL
Mode Bitmap Latency Maximum Downstream Rate Maximum Upstream Rate
G.dmt DBM Fast 8Mbps 1Mbps
G.dmt DBM Interleave 8Mbps 1Mbps
G.dmt FBM Fast 3.2Mbps 328Kbps
G.dmt FBM Interleave 3.2Mbps 328Kbps
G.lite DBM Interleave 3.2Mpbs 928Kbps
G.lite FBM Interleave 1Mpbs 328Kbps

Configuring an ADSL 48-Port Annex C Line Interface Module (LIM)
Configuring ADSL Annex C interfaces
Stinger®ADSL 48-Port Annex C LIM Guide 1-5
AL-DMT parameters
Following are descriptions of AL-DMT parameters. Its subprofiles are described in the
following sections.
Line-Config subprofile
The Line-Config subprofile contains parameters that apply to the configuration of the ADSL
DMT line. Its parameters are shown below, with default values for activating and setting up the
line. They are described in the following table, except for the Rate-Adaptive mode and power
parameters, which are described separately.
[in AL-DMT/{ any-shelf any-slot 0 }:line-config]
nailed-group = 1
vp-switching-vpi = 15
rate-adapt-mode-up = automatic-at-startup
rate-adapt-mode-down = automatic-at-startup
rate-adapt-ratio-up = 100
rate-adapt-ratio-down = 100
max-aggr-power-level-up = 13
max-aggr-power-level-down = 20
max-power-spectral-density = 40
line-code = g-dmt
line-latency-down = interleave
line-latency-up = interleave
trellis-encoding = yes
gain-default = 20-db
upstream-start-bin = 6
upstream-end-bin = 31
Parameter Description
Name Specifies the name of the interface. The default value is the
interface address in shelf:slot:port format (for example,
1:2:3), but you can assign a text string of up to 16 characters.
Physical-Address Specifies the 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.
Sparing-Mode Enables or disables port redundancy and specifies the mode.
The default, inactive, disables LIM port redundancy.
The automatic setting activates automatic backup for the port.
The values of the error threshold parameters specified in the
auto-lim-sparing-config:lim-sparing-config
[slot number]profile are used.
The manual setting deactivates the LIM port and reestablishes
the connection on the same port of the spare LIM.
Ignore-Lineup Can be set to ignore the status of a line (whether or not the line is
up). When set to yes, call control establishes the call regardless
of the physical line state.

1-6 Stinger®ADSL 48-Port Annex C LIM Guide
Configuring an ADSL 48-Port Annex C Line Interface Module (LIM)
Configuring ADSL Annex C interfaces
downstream-start-bin = 32
downstream-end-bin = 255
loop-back = none
bit-swapping = no
fbm-dbm-mode = fbm
alcatel-us-413-boost = unknown
Parameter Description
Nailed-Group Specifies the nailed-group number for the ADSL-DMT physical
interface. A Connection or RADIUS profile uses this number to
specify the interface.
Because each interface is assigned a unique default number, you
do not need to modify the value of this parameter. If you assign a
new value, it must be a number from 1 through 1024 that is unique
within the system.
VP-Switching-VPI Specifies the virtual path identifier (VPI) to use for virtual path
(VP) switching on the LIM port. The default is 15. All other VPIs
are used for virtual channel (VC) switching.
Line-Code The 48-port LIM automatically defaults to g-dmt, which is
equivalent to auto-select, and automatically detects G.dmt or
G.lite. The line can be limited to G.lite by setting this parameter to
g-lite. The ansi-dmt setting is not supported for Annex C.
Line-Latency-Down Specifies the latency path to be used for downstream data
transport. Default value is interleave for Annex C. Fast
latency is not supported for G.lite.
For related settings, see “Fast and interleaved bit-rate parameters”
on page 1-9.
Line-Latency-Up Specifies the latency path to be used for upstream data transport.
Default value is interleave for Annex C. Fast latency is not
supported for G.lite.
For related settings, see “Fast and interleaved bit-rate parameters”
on page 1-9.
Trellis-Encoding The default value for the 48-port Annex C LIM is yes.
Gain-Default Specifies the default gain value in decibels (16dB or 20dB) for
automatic gain control (AGC) on early Alcatel-based LIMs. This
parameter does not apply to the Annex C LIM.
Upstream-Start-Bin Specifies the starting frequency bin for upstream transmission.
Valid range is 6 through 31 for 48-port Annex C LIMs. The
default value is 6.
Upstream-End-Bin Specifies the ending frequency bin for upstream transmission.
Valid range is 6 through 31 for 48-port Annex C LIMs. The
default value is 31.
Downstream-Start-Bin Specifies the starting frequency bin for downstream transmission.
Valid range is 32 through 255 for 48-port Annex C LIMs. The
default value is 32.