Lucent Technologies PacketStar PSAX 45N74 User Manual
Top of Guide
PacketStar® PSAX
3-Port DS3/E3 ATM Protection Module
User Guide
Model 45N74
®
for the PacketStar
Issue 1, December 2004
System Software Release 10.0.0
PSAX Multiservice Media Gateways
Doc. No.: 255-700-585
Copyright © 2004 by Lucent Technologies. All rights reserved.
For trademark, regulatory compliance, and related legal information, see
the "Legal Notices, Safety, and Regulatory Information" section.
Legal Notices, Safety, and Regulatory
Copyright
Trademarks
Information
Copyright © 2004 by Lucent Technologies. All rights reserved.
This material is protected by the copyright laws of the United States and
other countries. It may not be reproduced, distributed, or altered in any fashion by any entity (either internal or external to Lucent Technologies), except
in accordance with applicable agreements, contracts or licensing, without the
express written consent of the originating organization and the business
management owner of the material.
PacketStar, Lucent, Lucent Technologies, and the Lucent Technologies logo are
registered trademarks of Lucent Technologies in the USA. Other product and
brand names mentioned in this guide are trademarks or registered trademarks of their respective owners.
Notices
The information in this document is for informational use only, is subject to
change without notice, and should not be construed as a commitment by
Lucent Technologies, Inc. This document is without warranty of any kind,
either expressed or implied. Lucent Technologies, Inc. assumes no responsibility for any errors, inaccuracies, or omissions. Neither is any liability
assumed for damages resulting from the use of the information or instructions contained herein. Lucent Technologies, Inc. is not responsible for any
damage or loss to your data or equipment resulting either directly or indirectly from use of this document.
Warranty Information
Software and Hardware Limited Warranties
Lucent Technologies provides a 90-day limited software warranty, and a oneyear limited hardware warranty on this product. Refer to the Software License
and Limited Warranty Agreement and the Lucent Technologies InterNetworking Systems Global Warranty that accompanied your package for more information.
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Legal Notices, Safety, and Regulatory Information
Safety Warnings and Information
Warranty Warnings
!
WARNING:
When inserting modules into the chassis, slide them gently, not forcefully. Excessive force may cause the modules to be seated improperly in
the chassis, and result in possible damage to the module or the chassis.
Install or remove modules one at a time. Doing this aids in preventing
the PSAX system from indicating any erroneous failure messages, and
allows the PSAX system time to reinitialize and display the accurate configuration of the module that is inserted.
!
CAUTION:
Modifying or tampering with PSAX chassis components may void your
warranty. Any modification to this equipment not expressly authorized
by Lucent Technologies may void your granted authority to operate such
equipment.
!
CAUTION:
Shipping the chassis with removable I/O, server, or CPU modules
installed may cause damage to the chassis and the modules. Damage to
any of the components in the system resulting from shipping the chassis
with removable modules installed will void your warranty.
Safety Warnings and Information
When installing and operating the 3-Port DS3/E3 ATM Protection module,
follow the safety guidelines provided in the PacketStar
Media Gateway Safety Guidelines, which accompanies this product, to help prevent serious personal injury and damage to the module. Please read all warnings and instructions supplied before beginning installation or configuration
of this module. In addition to the general safety information provided, you
should also refer to the appropriate PSAX installation guide for other important safety information and procedures.
Regulatory Standards Compliance
Safety and Electromagnetic Compatibility (EMC)
The following PacketStar PSAX systems are compliant with applicable safety
and EMC standards when configured with the 3-Port DS3/E3 ATM Protection module (model 45N74):
• PSAX 1000 system
• PSAX 4500 system
Refer to the PacketStar PSAX 1000 or PSAX 4500 Multiservice Media Gateway installation guide for details on safety and EMC standards compliance.
®
PSAX Multiservice
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Legal Notices, Safety, and Regulatory Information
Regulatory Statements
Telecommunications
The 3-Port DS3/E3 ATM Protection module (model 45N74) is compliant with
the following applicable telecommunications standard:
ETSI TBR 24:1997 (Europe)
Regulatory Statements
USA Regulatory Statements
FCC Part 68 This equipment complies with Part 68 of the FCC rules. On the back of the
PSAX chassis is a label that contains the FCC registration number, in addition
to other information. You must provide this information to the telephone
company, if they request it. The FCC requires Lucent Technologies to provide
you with the following information:
1. This equipment has digital service interface capabilities using RJ-48C and
RJ-48H connectors. The facility interface codes with which this equipment complies for digital services are as follows: 04DU9-BN, 04DU9-DN,
04DU9-1KN, and 04DU9-1SN. This equipment has loop start interface
capabilities using an RJ-11C connector. The facility interface code with
which this equipment complies for service is 02LS2. The service order
codes for this equipment are 6.0F for the T1 interface and 9.0Y for the
loop start interface.
2. An FCC-compliant telephone network interface jack is built into this
equipment and is compatible with interconnections that are Part 68
compliant.
3. The REN for the 4-Port Voice 2-Wire Office module when used in this
equipment is 0.7B.
4. If this equipment causes harm to the telephone network, the telephone
company will notify you in advance that temporary discontinuance of
service might be required. But if advance notice is not practical, the telephone company will notify you as soon as possible. Also, you will be
advised of your right to file a complaint with the FCC if you believe this
is necessary.
5. The telephone company might make changes in its facilities, equipment,
operations, or procedures that could affect the operation of this equipment. If this happens, the telephone company will provide advance
notice for you to make necessary modifications to maintain uninterrupted service.
6. If you experience trouble with this equipment, or need repairs or warranty information, please refer to the Lucent Technologies InterNetworking
Systems Global Warranty that accompanied your PSAX product shipment
for instructions on obtaining technical support in your area.
If this equipment is causing harm to the telephone network, the telephone company might request that you disconnect the equipment until
the problem is resolved.
7. This equipment has no user-serviceable parts.
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Legal Notices, Safety, and Regulatory Information
Regulatory Statements
This equipment cannot be used on public coin telephone service provided by
the telephone company. Connection to party line service is subject to state
tariffs. Contact your state public utility commission, public service commission, or corporation commission for information.
Canadian Regulatory Statements
CS-03 Issue 8 NOTICE: This equipment meets applicable Industry Canada Termi-
nal Equipment Technical Specifications. This is confirmed by the registration number. The abbreviation, IC, before the registration number signifies that registration was performed based on a Declaration
of Conformity indicating that Industry Canada technical specifications were met. It does not imply that Industry Canada approved the
equipment.
The Ringer Equivalence Number (REN) assigned to the 4-Port Voice 2-Wire
Office module denotes the percentage of the total load to be connected to a
telephone loop, which is used by the device, to prevent overloading. The termination on a loop may consist of any combination of devices subject only to
the requirement that the total of the REN of all devices does not exceed 5.
The REN for the 4-Port Voice 2-Wire Office module when used in the PSAX
system is 0.7B.
SH-03 Version 8 AVIS: Le présent matériel est conforme aux spécifications techniques
d’Industrie Canada applicables au matériel terminal. Cette conformité est confirmée par le numéro d’enregistrement. Le sigle, IC,
placé devant le numéro d’enregistrement, signifie que l’enregistrement s’est effectué conformément à une déclaration de conformité
et indique que les spécifications techniques d’Industrie Canada ont
été respectées. Il n’implique pas qu’Industrie Canada a approuvé le
matériel.
Le nombre équivalent de sonnerie (REN) attribué au module central bifilaire
(Voice 2-Wire Office) correspond au pourcentage de la charge totale à connecter à un circuit téléphonique bifilaire; il est utilisé par l’appareil pour
prévenir la surcharge. Le circuit peut être terminé par n’importe quelle combinaison d’appareils, à la seule condition que le total des REN de ces derniers
ne dépasse pas cinq.
Lorsqu’il est utilisé dans le système PSAX, le module central bifilaire possède
un REN de 0,7 B.
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Table of Contents
Legal Notices, Safety, and Regulatory Information . . . . . . . . . . . . . . . . . iii
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Software and Hardware Limited Warranties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Warranty Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Safety Warnings and Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Regulatory Standards Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Safety and Electromagnetic Compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Telecommunications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
USA Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
FCC Part 68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Canadian Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
CS-03 Issue 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
SH-03 Version 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
iii
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Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Purpose of This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Audience for This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
What You Should Know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Related Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Lucent Technologies Information Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Product Information Library . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Printed Documents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Other Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
About Lucent Technologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
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Table of Contents
About the PacketStar PSAX Product Family . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
PSAX 1000 Multiservice Media Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
PSAX 1250 Multiservice Media Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
PSAX 2300 Multiservice Media Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
PSAX 4500 Multiservice Media Gateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Text Types Used in This Document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Icons and Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Use of Command Description Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Use of Field Description Tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
General Navigational Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Selecting Options, Fields, and Commands Using the Console Interface . . . . . . . . . . . 1-7
Help Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Comments on This Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
2 Module Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
Overview of the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Protection Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
1:1 Protection Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
1:1 Traffic Protection Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Protection Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Working Module Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Switchover Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Restoration of Service on the Working Module . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
N:1 Protection Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
N:1 Traffic Protection Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Protection Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Working Module Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Switchover Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Restoration of Service on the Working Module . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Hardware Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Performance and Power Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Module Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
LED Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Loopback Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
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1-3
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2-5
2-5
2-5
2-6
2-6
2-8
2-9
2-9
2-10
2-10
2-11
2-11
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Table of Contents
3 Configuring Ports and Channels Using the Console . . . . . . . . . . . . . . . . . . . 3-1
Overview of This Chapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Obtaining General Module Data and Accessing Ports and Channels . . . . . . . . . . . . . . . . .3-1
Accessing the Equipment Configuration Window . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Alarm Status Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
Configuring the Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
Configuring the Ports in DS3 Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Configuring the Ports in E3 Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Viewing Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
Viewing DS3 Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-30
Viewing E3 Port Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33
Configuring the N to M Protection Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-36
Configuring N:1 Protection Groups. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-37
Viewing and Changing N:1 Protection Groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-42
Saving the Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-48
Provisioning Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-50
A Reference Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Overview of This Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Avoiding Common Errors When Configuring Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Optimizing SVC Call Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Connection Type by Interface Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Interface Type by I/O Module Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Module Alarm Status Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7
ATM Service Categories in the PSAX System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
ATM Service Category Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Priority of ATM Service Categories in the PSAX System . . . . . . . . . . . . . . . . . . . . . . . A-8
ATM TS, UPC, and VI Configuration Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9
ATM Traffic Shaping Capability by Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10
ATM Traffic Shaping Sample CPS Calculation Table . . . . . . . . . . . . . . . . . . . . . . . . . A-12
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A-1
A-1
A-1
A-1
A-2
A-3
A-7
A-8
A-8
A-8
A-9
A-10
A-12
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List of Figures
1-1 Field Description Table Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1-2 Main Menu Help Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9
2-1 3-Port DS3/E3 ATM Protection Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1
2-2 1:1 Protection Scheme on the PSAX 1000 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
2-3 N:1 Protection Scheme on the PSAX 4500 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
2-4 Loopback Configuration Options on the Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
3-1 Sample Equipment Configuration Window on a PSAX 1000
System (Page 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
3-2 Sample Equipment Configuration Window on a PSAX 1250
System (Page 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3-3 Sample Equipment Configuration Window on a PSAX 2300 or
PSAX 4500 System (Page 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
3-4 Sample Equipment Configuration Window on a PSAX 1000, PSAX 2300, or
PSAX 4500 System (Page 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
3-5 Sample Equipment Configuration Window on a PSAX 1250
System (Page 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4
3-6 Console Interface Main Menu (Equipment Configuration Selected) . . . . . . . . . . . . . . . . . . . . .3-8
3-7 Equipment Configuration Window (As Displayed on the PSAX 1250, PSAX 2300, and
PSAX 4500 Console) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9
3-8 Protection 3-Port DS3 ATM Configuration Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-10
3-9 Protection 3-Port DS3 ATM Port and Channel Configuration Window . . . . . . . . . . . . . . . . .3-14
3-10 Console Interface Main Menu (Equipment Configuration Selected) . . . . . . . . . . . . . . . . . . . .3-20
3-11 Equipment Configuration Window (As Displayed on the PSAX 1250, PSAX 2300, and
PSAX 4500 Console) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21
3-12 Protection 3-Port E3 ATM Configuration Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22
3-13 Protection 3-Port E3 ATM Port and Channel Configuration Window . . . . . . . . . . . . . . . . . . .3-26
3-14 Protection 3-Port DS3 ATM Statistics Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31
3-15 Protection 3-Port E3 ATM Statistics Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-34
3-16 N to M Protection Feature Menu Window (N:1 Protection) . . . . . . . . . . . . . . . . . . . . . . . . . .3-37
3-17 N to M Protection Group Table Window (N:1 Protection) . . . . . . . . . . . . . . . . . . . . . . . . . . .3-38
3-18 N to M Protection Group Configuration Window (N:1 Protection) . . . . . . . . . . . . . . . . . . . . .3-39
3-19 N to M Protection Group Configuration Window (1:1 Protection) . . . . . . . . . . . . . . . . . . . . .3-39
3-20 N to M Protection Feature Menu Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-42
3-21 N to M Protection Table Window (N:1 Group) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-43
3-22 N to M Protection Table Window (1:1 Group) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-43
3-23 N to M Protection Configuration Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-46
3-24 Save Configuration [Modified] (Before Saving) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-49
A-1 Combining the UPC Feature and Either the TS or VI Feature on a Connection . . . . . . . . . . . A-10
.1-6
.1-9
.2-1
.2-4
.2-8
.2-13
.3-2
.3-3
.3-3
.3-4
.3-4
.3-8
.3-9
.3-10
.3-14
.3-20
.3-21
.3-22
.3-26
.3-31
.3-34
.3-37
.3-38
.3-39
.3-39
.3-42
.3-43
.3-43
.3-46
.3-49
A-10
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List of Tables
1-1 Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
1-2 Command Description Table Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
1-3 System Responses to Selecting Options, Fields, or Commands . . . . . . . . . . . . . . . . . . . . . . . .1-7
1-4 Shortcut Keys for Navigating Console Interface Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8
2-1 Physical Hardware Specifications for the PSAX I/O Module . . . . . . . . . . . . . . . . . . . . . . . . . .2-10
2-2 Performance and Power Specifications for the 3-Port DS3/E3 ATM Protection Module . . . . .2-11
2-3 LED Indicators for the 3-Port DS3/E3 ATM Protection Module . . . . . . . . . . . . . . . . . . . . . . . .2-12
3-1 Equipment Configuration Window Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
3-2 Module Alarm Status Descriptions on the Equipment Configuration Window . . . . . . . . . . . . .3-7
3-3 Protection 3-Port DS3 ATM Configuration Window Field Descriptions . . . . . . . . . . . . . . . . . .3-11
3-4 Protection 3-Port DS3 ATM Port and Channel Configuration Window Field Descriptions . . . .3-15
3-5 3-Port DS3/E3 ATM Protection Module—DS3 Mode Line Status Alarm Descriptions . . . . . . .3-18
3-6 Protection 3-Port E3 ATM Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23
3-7 Protection 3-Port E3 ATM Port and Channel Configuration Window Field Descriptions . . . . .3-27
3-8 3-Port DS3/E3 ATM Protection Module—E3 Mode Line Status Alarm Descriptions . . . . . . . .3-29
3-9 3-Port DS3 ATM Port Statistics Window Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . .3-32
3-10 Protection 3-Port E3 ATM Statistics Window Field Descriptions . . . . . . . . . . . . . . . . . . . . . . .3-35
3-11 N to M Protection Group Configuration Window Field Descriptions . . . . . . . . . . . . . . . . . . .3-40
3-12 N to M Protection Table Window Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-44
3-13 N to M Protection Configuration Window Field Descriptions . . . . . . . . . . . . . . . . . . . . . . . . .3-46
3-14 Messages Generated after the Save Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . . .3-49
A-1 Connection Type by Interface Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
A-2 Interface Type by I/O Module Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
A-3 Module Alarm Status Descriptions on the Equipment Configuration Window . . . . . . . . . . . . A-7
A-4 PSAX System-Supported Quality of Service Categories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
A-5 Mapping ATM Service Categories to PSAX System Priority Levels . . . . . . . . . . . . . . . . . . . . . A-9
A-6 ATM Traffic Shaping, UPC Support, and VI Support Configuration Compatibility . . . . . . . . . A-9
A-7 ATM Traffic Management Capabilities by Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-11
A-8 ATM Traffic Shaping CPS Calculation Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12
.1-5
.1-6
.1-7
.1-8
.2-10
.2-11
.2-12
.3-5
.3-7
.3-11
.3-15
.3-18
.3-23
.3-27
.3-29
.3-32
.3-35
.3-40
.3-44
.3-46
.3-49
A-2
A-4
A-7
A-8
A-9
A-9
A-11
A-12
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List of Tables
PacketStar® PSAX 3-Port DS3/E3 ATM Protection Module User Guide, Issue1 Release10.0.0
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Purpose of This Guide
The PacketStar® PSAX 3-Port DS3/E3 ATM Protection Module User Guide provides
a description of the 3-Port DS3/E3 ATM Protection module. It also provides
information on how to configure the module ports and channels.
1 Getting Started
For information on configuring interfaces and provisioning connections
through the PSAX console interface, see the PacketStar
visioning Guide. If the Navis
®
EMS-PSAX Interface and Connection Provisioning Guide.
Navis
Note: If you are using this module for the first time, you should read
through this guide in its entirety before beginning the configuration process. The chapters in this guide are arranged in the logical
order of normal configuration and should be performed in that
order for the module to operate successfully.
Audience for This Guide
The information in this guide is intended for users who will configure ports
and channels for the 3-Port DS3/E3 ATM Protection module in the PSAX
Multiservice Media Gateway system.
What You Should Know
Before you use this document or operate a PSAX system, you should already
understand and have experience with the following:
• ATM Forum, Frame Relay Forum, and other telecommunications specifica-
tions
• Ethernet network capabilities
• Internet Protocol capabilities
• Data network design
• Telephony network design
®
®
EMS-PSAX interface is being used, see the
PSAX Connections Pro-
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Chapter 1 Getting Started
Related Reading
Related Reading
Lucent Technologies Information Products
Product Information Library
To install, operate, and configure your PSAX system and I/O and server modules, read the PSAX publications provided on your Lucent Technologies
PacketStar
CD-ROM.
®
PSAX Multiservice Media Gateways Product Information Library
Printed Documents
For your convenience, many of the documents included on the PacketStar
PSAX Multiservice Media Gateways Product Information Library CD-ROM are also
available in printed form. You can order these documents through the Lucent
Technologies Customer Information Center Web site at:
http://www.lucentdocs.com.
Other Publications
Numerous books are currently available on the subject of basic telecommunications technology and specific protocols. In addition to such general reading,
you should also be familiar with the industry specifications identified in this
guide.
About Lucent Technologies
Lucent Technologies is the communications systems and technology company formed through the restructuring of AT&T. We bring with us a tradition
of more than 125 years of experience and a dedication to superior customer
service.
Lucent Technologies manufactures, sells, and services a complete line of customer premises communications units, and commercial and multimedia
communications and messaging systems designed and supported by our
research and development unit, Bell Laboratories.
®
Our legacy and our spirit of innovation allow Lucent to provide our customers with the tools needed to communicate effectively, any time and anywhere, and to integrate the latest technologies into real-life solutions that
help make business work.
About the PacketStar PSAX Product Family
Lucent Technologies provides a complete range of PSAX Multiservice Media
Gateways in the PacketStar PSAX family.
PacketStar® PSAX 3-Port DS3/E3 ATM Protection Module User Guide, Issue1 Release10.0.0
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PSAX 1000 Multiservice Media Gateway
The PacketStar PSAX 1000 Multiservice Media Gateway is designed to provide
a full range of central office-based multiservice media gateway functions in a
small, competitively-priced package suitable for customer premise deployment. Ideal for central office, large enterprise, or wireless cell site multiservice media gateway applications, the PSAX 1000 system provides highly reliable network access for time-division multiplex voice, frame relay,
10/100BASE-T Ethernet, and ATM data applications.
When it is functioning in a redundant operating mode and after it has experienced a single-point failure, the PSAX 1000 system provides up to 630 Mbps
of ATM cell bus capacity. The total ATM cell bus capacity of the system may
also be scaled to provide nonblocking, nonredundant chassis bandwidths
beyond 630 Mbps.
Supporting up to five slots (19–inch chassis) for I/O and server modules—with a full range of interfaces such as DS0A, DS1/E1, DS3/E3, OC-3,
OC-3c/STM-1, OC-12c/STM-4c, 10/100BASE-T Ethernet, and serial—the
PSAX 1000 system is a cost-effective access switch solution for connecting to
legacy equipment.
Chapter 1 Getting Started
About the PacketStar PSAX Product Family
PSAX 1250 Multiservice Media Gateway
The PacketStar PSAX 1250 Multiservice Media Gateway is designed to provide
a full range of central office-based multiservice ATM access functions. Ideal
for the central office or a large enterprise’s multiservice media gateway, the
PSAX 1250 system provides highly reliable network access for time-division
multiplex voice, frame relay, 10/100BASE-T Ethernet, and ATM data applications.
When it is functioning in a redundant operating mode and after it has experienced a single-point failure, the PSAX 1250 system provides up to 600 Mbps
of ATM cell bus capacity. The total ATM cell bus capacity of the system may
also be scaled to provide nonblocking, nonredundant chassis bandwidths
beyond 600 Mbps.
Supporting 10 slots (19-inch chassis) or 14 slots (23-inch chassis) for I/O and
server modules—with a full range of interfaces such as DS0A, DS1/E1,
DS3/E3, OC-3, OC-3c/STM-1, OC-12c/STM-4c, 10/100BASE-T Ethernet,
and serial—the PSAX 1250 system is a cost-effective access switch solution
for interworking with legacy equipment.
PSAX 2300 Multiservice Media Gateway
The PacketStar PSAX 2300 Multiservice Media Gateway offers carrier-grade,
high-density multiservice ATM access functions. Designed as the multiservice
media gateway for the central office or for a large enterprise customer, the
PSAX 2300 system provides network access for time-division multiplex
voice, frame relay, 10/100BASE-T Ethernet, and ATM data applications.
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Chapter 1 Getting Started
About the PacketStar PSAX Product Family
When it is functioning in a redundant operating mode and after it has experienced a single-point failure, the PSAX 2300 system provides up to 1.9 Gbps
of ATM cell bus capacity. The total ATM cell bus capacity of the system may
also be scaled to provide nonblocking, nonredundant chassis bandwidths
beyond 1.9 Gbps.
Supporting 15 slots for I/O and server modules—with provisions for OC-3,
OC-3c/STM-1, and OC-12c/STM-4c interfaces with 1:1 protection, 1:1 DS1
module protection switching, and a full range of interfaces such as DS0A,
DS1/E1, DS3/E3, 10/100BASE-T Ethernet, and serial—the PSAX 2300 system solves demanding and diverse network design challenges with ease.
PSAX 4500 Multiservice Media Gateway
The PacketStar PSAX 4500 Multiservice Media Gateway provides carrier-class
reliability, with an unmatched range of service capabilities, end-to-end traffic
prioritization, “any-service, any-channel” flexibility, and breakthrough voice
technology. Ideal for the central office or a large enterprise multiservice
media gateway, the PSAX 4500 system provides highly reliable network
access for time-division multiplex voice, frame relay, 10/100BASE-T Ethernet, and ATM data applications.
When it is functioning in a redundant operating mode and after it has experienced a single-point failure, the PSAX 4500 system provides up to 4.2 Gbps
of ATM cell bus capacity. The total ATM cell bus capacity of the system may
also be scaled to provide nonblocking, nonredundant chassis bandwidths
beyond 4.2 Gbps.
The high-performance midplane design supports 15 interface slots. Module
protection for two groups of four or six multiport DS3, STS-1e, or E3 modules is provided via an N:1 protection scheme using rear access line interface
modules. The protection module provides backup so that on the failure of
any one of the modules in a group, traffic is maintained. A single PSAX 4500
system at the edge of the carrier network can transition traffic from a large
number of network customers over high-speed DS1/E1 IMA, DS3/E3, OC-3,
OC-3c/STM-4c, and OC-12c/STM-4c trunks into the ATM core, managing
the whole quickly and efficiently, down to the individual permanent virtual
circuit.
Through the use of the latest DSP voice technology, the PSAX 4500 system
supports advanced voice traffic over ATM (VToA) services for up to 6048 DS0
channels. As a multiservice media gateway—with H.248 call control, CAS,
PRI, GR-303, and V5.2 protocols, 3-Port DS3/STS-1e, 1-Port OC-3/STM-1
CES, and Tones and Announcements modules—the PSAX 4500 system provides packet solutions for voice over xDSL, trunking, tandem, and PRI offload
switching.
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Conventions
Text Types Used in This Document
This guide uses a different typeface to denote text displayed on console interface windows and equipment, as well as data you enter. Table 1-1 shows how
each typographical convention is used.
Table 1-1. Text Conventions
Appearance How it is used
SANS SERIF BOLD, ALL CAPS
Fixed-width normal Message text displayed on the user interface window
Serif bold • Button name (GUI interface) or command name
Fixed-width bold System prompts displayed on the user interface window
Serif italics • A variable name or string for which you will substi-
Labels on module panels, chassis faceplates, or other
hardware
(console interface) on the user interface window
• Literal text for values that the user types or selects
from predefined sets of values for fields
• Commands or literal argument values
tute your own information
• An argument or parameter on a command line for
which you will substitute your own information
Chapter 1 Getting Started
Conventions
Icons and Symbols
Refer to the procedures within this guide for important safety information
and proper procedures.
Standard icons and symbols to alert you to dangers, warnings, cautions, and
notes are described as follows:
!
DANGER:
Warnings for a personal injury hazard are identified by this format.
!
WARNING:
Warnings relating to risk of equipment damage or failure are identified
by this format.
!
CAUTION:
Warnings relating to risk of data loss or other general precautionary
notes are identified by this format.
Note: Identifies additional information pertinent to the text preceding
this note.
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Chapter 1 Getting Started
Conventions
Use of Command Description Tables
All illustrations for configuration windows in this guide for the PSAX system
console interface are followed by a command description table describing the
command functions displayed on the window (near the bottom of the window). You should read all the information in the command description table,
especially when first using a window, because these descriptions may have
special instructions or configuration constraints provided in the Function column by use of the
Table 1-2. Command Description Table Example
Command Function
Bring All Interfaces
Into Service
Brings the out-of-service configured interfaces to in-service status.
Note: In GR-303 configuration, it is critical to bring into service
Note: text convention (see Table 1-2).
only those channels actively configured with DS1 ports.
Use of Field Description Tables
For all illustrations for configuration windows in this guide for both the
PSAX system console interface and the EMS-PSAX, the field description
tables normally follow the command description tables. Field description
tables define the editable and the display-only fields, their functions, valid
values, and constraints, if applicable. As in the command description tables,
Note: text convention is also used, where appropriate, in the field descrip-
the
tion tables to alert the user to special instructions or configuration constraints
(see Figure 1-1).
Identifies editable fields
or display-only fields on
screens
Identifies initial field
value default
Describes the function of the field
and special instructions for
configuring modules
Field Name Field Values Description
Interface Type Default: 0
Range: 0-22
Format: Numeric
Specifies the type of end-to-end connection
protocol that governs the transmission parameters
for this configured port and channel interface.
Note: When certain types of interfaces are selected in this field, other configuration fields are displayed on this window.
Identifies available
range for field value
when applicable
Figure 1-1. Field Description Table Example
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Identifies field value format as
Numeric, Predefined Alphanumeric,
Hexadecimal, or Valid Dotted Quad.
Decribes special instructions or
configuration constraints
Chapter 1 Getting Started
General Navigational Guidelines
General Navigational Guidelines
Selecting Options, Fields, and Commands Using the Console Interface
Follow these guidelines to select an option, field, or command on the PSAX
console interface windows and to navigate through the windows:
• To select an option, field, or command, do one of the following:
~ Press the Up, Down, Left, or Right Arrow to highlight (reverse video
image) the option name, field name, or command you want to select and
press Enter as many times as necessary until the field choice you want is
displayed.
~ Use the alternate keys, K=UP, H=LEFT, L=RIGHT to highlight (reverse
video image) the option name, field name, or command you want to
select and press Enter. (You can optionally redefine these alternate keys
from the User Options window, which is accessible from the Console
Interface Main Menu window.)
~ To quickly select a command, you can also simultaneously press Ctrl and
the letter underlined in the command.
Once an option name, field, or command is selected, the system responds
as described in Table 1-3.
Table 1-3. System Responses to Selecting Options, Fields, or Commands
For a selected... the following occurs:
option name The window corresponding to the option name is displayed.
field The following variations occur:
• The field entry area is blank or contains the default or previously
entered value. Press Enter to enter or change data in this field. Press
Enter again to exit edit mode.
• The field entry area, like the field name, is displayed in reverse video
image and contains a predefined set of values, which you can view or
select by pressing Enter to navigate forward through these values. To
navigate backward through these field values, press Ctrl+H or the
Backspace key.
Read-only fields, which you cannot change, are enclosed in square brackets (example: [LineStatus]).
command The following variations occur:
• A message in the information line indicating an error or successful com-
pletion of the command is displayed.
• The next higher level or previous window (window name) is displayed.
• The next lower level or succeeding window (window name) is displayed.
• To navigate through the Console windows, use the shortcuts listed in
Table 1-4.
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Chapter 1 Getting Started
Help Information
Table 1-4. Shortcut Keys for Navigating Console Interface Windows
If you want to... press...
redisplay the previous window Ctrl+B on the window.
redisplay the Console Interface Main Menu window Ctrl+G on the window.
refresh the window Ctrl+R on the window.
On all the PSAX system windows, each command or menu option has an
underlined letter. The control key plus an underlined letter is a shortcut to
that command or menu option. You can use the navigation keys and hotkeys
with the Caps Lock key on or off. Always observe the status line at the bottom of the window for instructions and information.
Help Information
The Help windows are accessible from any window in the PSAX system console interface. To access the Help windows, press the ? (Question Mark) key
on any window. In addition to the Help windows, the Console Interface windows display contextual help in the information line at the bottom of each
window. Contextual help provides information about the command or field
currently highlighted on that window. The information line also displays
error codes and responses to commands. All responses and notifications are
recorded in a trap log. See the PacketStar
Protocol (SNMP) Trap Reference Guide for details on displaying the trap log and
obtaining explanations of the trap messages.
®
PSAX Simple Network Management
To view the Help windows from the Console Interface Main Menu window,
perform the following procedure.
Begin
1 On the window for which help is desired, press the ? (question mark)
key.
The Help window for the current console window is displayed (see
Figure 1-2).
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d
Your site name appears here
after initial configuration
Chapter 1 Getting Started
Technical Support
Information Line
Figure 1-2. Main Menu Help Window
2 To display the remaining Help windows for the current console window,
3 To scroll backward through the Help windows for the current console
4 To exit Help and return to the current console window, press the Enter
En
Technical Support
If you experience a problem with the 3-Port DS3/E3 ATM Protection module,
refer to the Lucent Technologies Product Warranty Registration Information, which
accompanied your shipment, for instructions on obtaining support in your
area.
press the Down Arrow key.
window, press the Up Arrow key.
key.
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Chapter 1 Getting Started
Before You Begin
Before You Begin
Before you start configuring and using your new 3-Port DS3/E3 ATM Protection module, be sure you:
• Record your site-specific specifications such as the IP addresses you will
use, and the connections and interfaces you will need. Decide which user
names and passwords you will assign.
• Make sure you have IP connectivity to all PSAX devices to be managed
• Determine the numbering scheme for any in-band management connec-
tions you will be using
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Title: PacketStar
Release number: Release 10.0.0
Document number: 255-700-585
Issue number: Issue 1
Publication date: December 2004
®
PSAX 3-Port DS3/E3 ATM Protection Module User Guide
PacketStar® PSAX 3-Port DS3/E3 ATM Protection Module User Guide, Issue1 Release10.0.0
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Overview of the Module
The 3-Port DS3/E3 ATM Protection module (see Figure 2-1) provides 1:1
traffic protection for ATM services when connected to a LIM3–1 module in
the PSAX 1000 chassis and N:1 traffic protection for ATM services when connected to a LIM3–4 module in the PSAX 4500 chassis. In addition to its traffic
protection capabilities, this module provides the same functionality as the
3-Port DS3/E3 ATM module (model 23N74): ATM service, including ATM
UNI 3.0, 3.1, and 4.0; ATM IISP user and network; and ATM PNNI 1.0 interfaces. It is software configurable to function in either the DS3 or the E3
mode, enabling you to deliver DS3 or E3 configurations while maintaining
inventory of a single module type. The three high-speed ATM network interfaces operate at DS3, with a line rate of 44.736 Mbps, or at E3, with a line
rate of 34.368 Mbps. Each port can be configured for ATM service, including
ATM UNI 3.0, 3.1, and 4.0; ATM IISP user and network; and ATM PNNI 1.0
interfaces.
l
The 3-Port DS3/E3 ATM Protection module has four types of LED indicators:
FAIL, ACTIVE, STBY, and LOS (loss of signal). See Figure 2-1 for an illustration of this module.
2 Module Description
FAIL
ACTIVE
DS3/E3
ATM
STBY
LOS 1
LOS 2
LOS 3
Figure 2-1. 3-Port DS3/E3 ATM Protection Module
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Chapter 2 Module Description
Protection Features
Protection Features
The 3-Port DS3/E3 ATM Protection module provides 1:1 protection on the
PSAX 1000 and N:1 protection on the PSAX 4500.
1:1 Protection Feature
The following sections describe how all aspects of the 1:1 Protection feature
work.
1:1 Traffic Protection Modules
The 1-to-1 (1:1) Protection feature on the PSAX 1000 Multiservice Media
Gateway system provides traffic protection by configuring the system to use
the 1:1 Traffic Protection modules. These modules do not have external connectors, but receive traffic from and transmit traffic to the network by physical connection at the PSAX 1000 chassis midplane to corresponding 3-Port
Line Interface modules (LIM3–1 modules). The 1:1 Traffic Protection modules are installed at the front of the chassis. The LIM3–1 modules, which are
installed at the rear of the chassis, receive incoming traffic and transmit outgoing traffic via the attached network cables on the external connectors on
the faceplates. The LIM3–1 modules are electrically connected to the protection module for a protection group via the midplane.
Protection Group
Working Module Monitoring
The 1:1 Protection feature supports the configuration of one protection group
for the PSAX 1000 system that contains one working module and one protection module of the same type, and one LIM3–1 module for the working
module. The working module is installed in slot
is installed in slot
ing module.
In the 1:1 scheme, one working module in a protection group is associated
with one protection module. Under normal conditions, the working module
in a protection group is in Active mode, exchanging traffic, and the protection module is in Standby mode.
The 1:1 Traffic Protection modules can also be used in a nonprotected configuration in which one of these modules can be installed in slot
sponding LIM3–1 module installed directly behind it.
Traffic is switched from a working module to its associated protection module
under the following conditions:
• Working module failure
• Removal of the working module from the chassis
• Manual switchover initiated by the user
• Nonservice affecting upgrades
15. A LIM3–1 module is installed directly behind the work-
4 and the protection module
4 with a corre-
The protection module monitors the operation of the working module. InterSlot Communication (ISC) cells are exchanged between the working and
protection module. If the protection module detects eight consecutive miss-
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Switchover Events
Chapter 2 Module Description
Protection Features
ing ISC cells from a working module, the protection module sends a message
to the CPU indicating the working module failure. A likely cause of this condition is that processing on the working module is interrupted or suspended.
Other causes of this condition are the removal of the working module from
the chassis or a failure of the module.
During the switchover of traffic from the working module to the protection
module, various events occur depending on the reason why the switchover
was initiated. These events are described in the following scenarios:
Working module failure or removal
•
After the protection module detects the failure or removal of the working
module, automatic switchover occurs. The protection module notifies the
CPUn module that the working module has failed or been removed.
The protection module was configured at the time the working module
was originally configured. The protection module instructs the LIM3–1
module to transfer traffic from the working module to the protection module, which is now placed into Active mode. No need exists for the CPUn
module to download configuration information from the working module.
The CPUn module then brings the connections into service on the protection module. In this scenario, the connection downtime is only the amount
of time needed for electrical switching on the LIM3–1 module.
Manual switchover initiated by the user
•
The user can manually switch traffic from the working module to the protection module. This action might be taken in preparation for removing the
working module from the chassis for maintenance purposes or testing the
working module for diagnostic purposes. When the user executes the
switchover command, the CPUn module downloads the working module
and connection configurations to the protection module, and then instructs
the LIM3–1 module to transfer traffic from the working module to the protection module. In this scenario, the connection downtime is only the
amount of time needed for electrical switching on the LIM3–1 module.
Figure 2-2 illustrates the data flow in a 1:1 scheme during normal operation,
and the data flow while the protection module is in Active mode following
the failure of the working module.
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Chapter 2 Module Description
Protection Features
1 2 3
Midplane
Midplane
LIM3-1
Slot 4
Working
Module
Slot 4
1 2 3
LIM3-1
Slot 4
Normal Data Flow
Protection
Module
Slot 15
Standby
Rear
Panel
Midplane
Front
Panel
Rear
Panel
Midplane
Working
Module
Slot 4
Failed Working Module
Figure 2-2. 1:1 Protection Scheme on the PSAX 1000 System
Restoration of Service on the Working Module
After automatic or manual switchover has been performed and the replacement or testing of the working module is completed, the user manually
switches the traffic back from the protection module to the working module,
which resumes Active mode. The following events occur depending on
whether the working module is an existing one having all configurations
loaded, or is a new module that replaces a failed working module.
• Existing working module
Protection
Module
Slot 15
ACTIVEFAILED
Front
Panel
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When the user executes the switchover command, the PSAX system
instructs the LIMnn module to switch the traffic from the protection module running in Active mode to the working module. The working module
is then placed into Active mode and the protection module is placed into
Standby mode.
• Replacement working module
When the user inserts the new replacement module into the chassis, the
PSAX system recognizes it as an unconfigured module. The user then executes the switchover command, and the PSAX system downloads the module and connection configurations from the protection module to the new
working module. After this download is finished, the system instructs the
LIMnn module to switch the traffic from the protection module running in
Active mode to the working module. The working module is then placed
into Active mode and the protection module is placed into Standby mode.
The connection downtime during this manual switchover in the previous
scenarios is only the amount of time needed to switch the LIMnn module.
N:1 Protection Feature
Chapter 2 Module Description
Protection Features
N:1 Traffic Protection Modules
Protection Groups
The following sections describe how all aspects of the N:1 Protection feature
work.
The N-to-1 (N:1) Protection feature on the PSAX 4500 Multiservice Media
Gateway system provides traffic protection by configuring the system to use
the N:1 Traffic Protection modules. These modules do not have external connectors, but receive traffic from and transmit traffic to the network by physical connection at the PSAX 4500 chassis midplane to corresponding 3-Port
Line Interface modules (LIM3–4 modules). The N:1 Traffic Protection modules are installed at the front of the chassis. The LIM3–4 modules, which are
installed at the rear of the chassis, receive incoming traffic and transmit outgoing traffic via the attached network cables on the external connectors on
the faceplates. The LIM3–4 modules are electrically connected to the protection module for a protection group via the midplane.
The N:1 Protection feature supports the configuration of one or two protection groups for the PSAX 4500 system, with each group containing either
one-to-six or one-to-four working modules of the same type, one LIM3–4
module for each working module, and one protection module of the same
type for each group. The protection groups are set up as follows.
• For group 1, up to six working modules are installed in slots
8, and the protection module is installed in slot 15. A LIM3–4 module
and
3, 4, 5, 6, 7,
is installed directly behind each working module.
• For group 2, up to four working modules are installed in slots
12, and the protection module is installed in slot 13. A LIM3–4 module is
9, 10, 11, and
installed directly behind each working module.
Two types of protection schemes are supported for each protection group: N:1
and 1:1. In the N:1 scheme, one to six working modules are associated with
one protection module in group 1, and one to four working modules are
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Chapter 2 Module Description
Protection Features
associated with one protection module in group 2. In the 1:1 scheme, only
one working module in a protection group is associated with one protection
module. Under normal conditions, the working module in a protection group
is in active mode, exchanging traffic, and the protection module is in standby
mode.
The N:1 Traffic Protection modules can also be used in a nonprotected configuration in which these modules can be installed in slots
each Protection module has a corresponding LIM3–4 module installed
directly behind the Protection module that the LIM3–4 module is serving. If
any slots in the range of slots designated for group 1 (slots
9–12) are not configured for a protection group, the unused slots can be
(slots
used for other types of PSAX I/O or server modules.
Working Module Monitoring
Traffic is switched from a working module to its associated protection module
under the following conditions:
• Working module failure
• Removal of the working module from the chassis
• Manual switchover initiated by the user
• Nonservice affecting upgrades
3–12 only as long as
3–8) and group 2
Switchover Events
The protection module monitors the operation of the working module. InterSlot Communication (ISC) cells are exchanged between the working and
protection module. If the protection module detects eight consecutive missing ISC cells from a working module, the protection module sends a message
to the CPU indicating the working module failure. A likely cause of this condition is that processing on the working module is interrupted or suspended.
Other causes of this condition are the removal of the working module from
the chassis or a failure of the module.
During the switchover of traffic from the working module to the protection
module, various events occur depending on the reason why the switchover
was initiated. These events are described in the following scenarios:
Working module failure or removal
•
After the protection module detects the failure or removal of the working
module, automatic switchover occurs. The protection module notifies the
CPUn module that the working module has failed or been removed. After
this notification, the following sequence of events occurs depending on
which type of protection scheme is being used:
In the 1:1 scheme, the protection module was configured at the time the
~
working module was originally configured. The protection module
instructs the LIM3–4 module to transfer traffic from the working module
to the protection module, which is now placed into Active mode. No
need exists for the CPUn module to download configuration information
from the working module. The CPUn module then brings the connections into service on the protection module. In this scenario, the connection downtime is only the amount of time needed for electrical switching
on the LIM3–4 module.
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Chapter 2 Module Description
Protection Features
~ In the N:1 scheme, the protection module instructs the LIM3–4 module
to transfer traffic from the working module to the protection module,
which is now placed into Active mode. The CPUn module then downloads the module and connection configurations from the working module to the protection module, and restores traffic flow. In this scenario,
connection downtime is slightly longer than that for the 1:1 scheme
because the module and connection configurations must be downloaded
to the protection module.
Manual switchover initiated by the user
•
The user can manually switch traffic from the working module to the protection module. This action might be taken in preparation for removing the
working module from the chassis for maintenance purposes or testing the
working module for diagnostic purposes. When the user executes the
switchover command, the CPUn module downloads the working module
and connection configurations to the protection module, and then instructs
the LIM3–4 module to transfer traffic from the working module to the protection module. In this scenario, the connection downtime is only the
amount of time needed for electrical switching on the LIM3–4 module.
Figure 2-2 illustrates the data flow in an N:1 scheme during normal operation, and the data flow while the protection modules are in Active mode following the failure of a working module in groups 1 and 2.
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Chapter 2 Module Description
Protection Features
1 2 3
1 2 3 1 2 3
1 2 3
Midplane
Midplane
LIM3-4
Slot 3
Working
Module
Slot 3
1 2 3
LIM3-4
Slot 3
Group 1
LIM3-4
Slot 8
Working
Module
Slot 8
LIM3-4
Slot 9
Working
Module
Slot 9
Normal Data Flow
1 2 3 1 2 3 1 2 3
LIM3-4
Slot 8
LIM3-4
Slot 9
Group 2
LIM3-4
Slot 12
Working
Module
Slot 12
LIM3-4
Slot 12
Protection
Module
Slot 13
Protection
Module
for Group 2
Standby
Protection
Module
Slot 15
Protection
Module
for Group 1
Rear
Panel
Midplane
Front
Panel
Rear
Panel
Midplane
Working
Module
Slot 3
Slot 8
FAILED FAILED
Group 1
Working
Module
Slot 9
Group 2
Failed Working Modules
Figure 2-3. N:1 Protection Scheme on the PSAX 4500 System
Restoration of Service on the Working Module
After automatic or manual switchover has been performed and the replacement or testing of the working module is completed, the user manually
switches the traffic back from the protection module to the working module,
which resumes Active mode. The following events occur depending on
whether the working module is an existing one having all configurations
loaded, or is a new module that replaces a failed working module.
• Existing working module
Slot 12
Protection
Module
Slot 13
Protection
Module
for Group 2
ACTIVE
Protection
Module
Slot 15
Protection
Module
for Group 1
Front
Panel
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