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

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

Lucent Technologies
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Stinger® ADSL 48-Port Annex A LIM Guide iii
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Stinger®ADSL 48-Port Annex A 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 A
Line Interface Module (LIM) ........................................................... 1-1
Installing an ADSL 48-port Annex A LIM ........................................................................... 1-1
Module specifications ............................................................................................................ 1-1
Interpreting ADSL 48-port Annex A status lights................................................................. 1-2
Configuring ATM ADSL-DMT interfaces............................................................................ 1-4
Overview of the Al-Dmt profile ..................................................................................... 1-4
ADSL protocol support................................................................................................... 1-5
Line activation and DMT parameters............................................................................. 1-5
The Al-Dmt profile.................................................................................................. 1-5
Line-Config subprofile ............................................................................................ 1-6
Rate-adaptive mode parameters............................................................................... 1-8
Power-level parameters and power spectral density (PSD)..................................... 1-9
Fast and interleaved bit-rate parameters....................................................................... 1-10
The Fast-Path-Config subprofile........................................................................... 1-10
The Interleave-Path-Config subprofile.................................................................. 1-11
Margin-Config subprofile...................................................................................... 1-13
Configuring call control....................................................................................................... 1-16
Examples of ADSL-DMT interface configuration....................................................... 1-18
Configuring selective frequency bin loading....................................................................... 1-19
Configuring the Stinger to disable a frequency bin...................................................... 1-20
Checking status of ADSL-DMT interface........................................................................... 1-20
Checking status of the physical interface ..................................................................... 1-21
Obtaining statistics about operations............................................................................ 1-23
Displaying ADSL-DMT port status and nailed groups ................................................ 1-24
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

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

Stinger®ADSL 48-Port Annex A LIM Guide vii
Figures
Figure 1-1 ADSL 48-port Annex A LIM....................................................................... 1-3
Figure 1-2 Relationship between noise margin parameters and power adjustments.... 1-13
Figure 1-3 Future support: Noise margins and dynamic rate adaptation relationship . 1-15
Figure 1-4 ADSL ATM LIM configuration................................................................. 1-18
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 B LIM Guide ix
Tables
Table 1-1 ADSL 48-port Annex A LIM status lights ................................................... 1-4

Stinger®ADSL 48-Port Annex A LIM Guide xi
About This Guide
What is in this guide
This guide describes how to configure and monitor the Stinger ADSL 48-port Annex A 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 mono-
space text Represents characters that you enter exactly as shown (unless the char- acters 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 A 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 key-
stroke, 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 com-
puter.
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 A 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 A LIM Guide 1-1
1
Configuring an ADSL 48-Port Annex A
Line Interface Module (LIM)
The Stinger asymmetric digital subscriber line (ADSL) 48-port Annex A line interface module
(LIM) provides 48 ADSL interfaces that support high-speed asymmetric data transfer using the
ANSI discrete multitone (DMT), G.lite, and G.dmt ADSL protocols.
One version of the ADSL 48-port Annex A LIM, product code STGR-LIM-AD-48, supports
the Stinger FS and Stinger LS chassis.
Installing an ADSL 48-port Annex A LIM
Install the ADSL 48-port LIM in the same manner as other LIMs. See the Stinger Getting
Started Guide for your unit for details. After installation, the module must be configured
following the instructions in this guide.
Module specifications
The specifications for the ADSL 48-port Annex A LIM are as follows:
Installing an ADSL 48-port Annex A LIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Module specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Interpreting ADSL 48-port Annex A status lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Configuring ATM ADSL-DMT interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Configuring call control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Configuring selective frequency bin loading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Checking status of ADSL-DMT interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Physical dimensions Height: 15 inches (38.1cm).
Width: 1.06 inches (2.69cm).
Depth: 9 inches (22.8cm).
Weight: 4 pounds (1.8kg).
Power requirements 135 W (miximum).

1-2 Stinger®ADSL 48-Port Annex A LIM Guide
Configuring an ADSL 48-Port Annex A Line Interface Module (LIM)
Interpreting ADSL 48-port Annex A status lights
Interpreting ADSL 48-port Annex A status lights
Several status lights on the front panel of the ADSL 48-port Annex A LIM indicate the status
of the module and its ports. Figure 1-1 shows the front panel and status lights of the ADSL
48-port Annex A LIM.
Temperature range FS/LT version: 32°F through 131°F (0°C through
55°C)
RT version: -40°F through 149°F (-40°C through
65°C)
Interface standards ANSI T1E1.4/99-006 (draft).
Network Timing Reference
(NTR) An 8kHz reference clock is provided over the ADSL line for any CPE with the capability to
recover it.
Physical connectors USOC RJ21X 50-pin telco connector. Must meet
JIS C5973 standards.

Configuring an ADSL 48-Port Annex A Line Interface Module (LIM)
Interpreting ADSL 48-port Annex A status lights
Stinger®ADSL 48-Port Annex A LIM Guide 1-3
Figure 1-1. ADSL 48-port Annex A LIM
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 A status lights.

1-4 Stinger®ADSL 48-Port Annex A LIM Guide
Configuring an ADSL 48-Port Annex A Line Interface Module (LIM)
Configuring ATM ADSL-DMT interfaces
Table 1-1. ADSL 48-port Annex A LIM status lights
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 ADSL-DMT LIM installed in slot 14, the system creates the following
profiles:
admin> dir al-dmt
28 06/20/1999 00:27:37 { shelf-1 slot-14 1 } 1:14:1
28 06/20/1999 00:27:37 { shelf-1 slot-14 2 } 1:14:2
28 06/20/1999 00:27:37 { shelf-1 slot-14 3 } 1:14:3
28 06/20/1999 00:27:37 { shelf-1 slot-14 4 } 1:14:4
28 06/20/1999 00:27:37 { shelf-1 slot-14 5 } 1:14:5
28 06/20/1999 00:27:37 { shelf-1 slot-14 6 } 1:14:6
28 06/20/1999 00:27:37 { shelf-1 slot-14 7 } 1:14:7
28 06/20/1999 00:27:37 { shelf-1 slot-14 8 } 1:14:8
28 06/20/1999 00:27:37 { shelf-1 slot-14 9 } 1:14:9
29 06/20/1999 00:27:37 { shelf-1 slot-14 10 } 1:14:10
29 06/20/1999 00:27:37 { shelf-1 slot-14 11 } 1:14:11
....
Overview of the Al-Dmt profile
Various discrete multitone (DMT) standards define the fast and interleaved 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. The Stinger unit references these parameters in the training process.
The following sets of parameters are active in the current software version:
•Line activation and DMT parameters
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.

Configuring an ADSL 48-Port Annex A Line Interface Module (LIM)
Configuring ATM ADSL-DMT interfaces
Stinger®ADSL 48-Port Annex A LIM Guide 1-5
•Rate adaptive mode parameters
•Power spectral density (PSD) and power-level parameters
•Fast and interleaved bit-rate parameters
•Interleaving delay parameters
•Noise margin parameters
•Dynamic rate adaptive parameters
•Trellis encoding
•Automatic Gain Control
The following AL-DMT features are not yet supported:
•Dual latency
•Dynamic rate adaptation
These features are not present in the current software version. However, the parameters related
to these features are present in the Al-Dmt profile.
ADSL protocol support
The ADSL 48-port Annex A LIM supports the following protocol standards:
•ANSI DMT—ANSI T1.413.2
•G.dmt—ITU 992.1
•G.lite—ITU 992.2, ITU 994.1
By setting the line-code parameter in the Line-Config subprofile to auto-select, the
LIM automatically detects and configures itself with the correct ADSL protocol. This is the
optimum setting for the ADSL 48-port Annex A LIM.
No matter which protocol is used, in general, the Al-Dmt profile parameters remain the same
and are configured in the same way. Exceptions are the line-latency-down and
line-latency-up parameters. When the G.lite protocol is specified or detected, these
parameters are automatically set to the value interleave.
Line activation and DMT parameters
Each direction of traffic (upstream and downstream) on an ADSL-DMT line can have a
different minimum and maximum bit rate. The ADSL 48-port Annex A LIM does not support
dual latency, which can use both the fast and interleaved channels in both directions.
The Al-Dmt profile
The Al-Dmt profile contains the following parameters and subprofiles, shown with default
values, for activating and setting up an AL-DMT line. These profile and subprofile parameters
are described in the following tables.
[in AL-DMT/{ any-shelf any-slot 0 }]
name = ""
physical-address* = { any-shelf any-slot 0 }

1-6 Stinger®ADSL 48-Port Annex A LIM Guide
Configuring an ADSL 48-Port Annex A Line Interface Module (LIM)
Configuring ATM ADSL-DMT interfaces
enabled = no
sparing-mode = inactive
Line-Config subprofile
The Line-Config subprofile parameters configure an ADSL-DMT line. The parameters
activate and set up the line and are shown with default values. The rate adaptive and power
parameters are describes 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 = auto-select
line-latency-down = fast
line-latency-up = fast
trellis-encoding = yes
gain-default = 20-db
upstream-start-bin = 6
upstream-end-bin = 31
downstream-start-bin = 32
downstream-end-bin = 255
loop-back = none
bit-swapping = no
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 (sparing) and specifies the
mode.
The default value, inactive, disables LIM port redundancy
(sparing).
The automatic setting activates automatic sparing 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.