Cisco Voice Interworking Services (VISM) Operator's manual

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Cisco VISM Installation and Configuration
Guide
Release 3.0
June 2004
Text Part Number: OL-2521-01 D0

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Cisco VISM Installation and Configuration Guide
Copyright © 2004, Cisco Systems, Inc.
All rights reserved.

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CONTENTS
Preface xiii
Objectives xiii
Audience xiii
Document Organization xiii
Related Documentation xiv
Cisco MGX 8850 (PXM45) Multiservice Switch Release 3 xiv
MGX 8850 (PXM1) Multiservice Switch Release 1.2.10 xv
MGX 8250 Edge Concentrator Release 1.2.10 xvi
MGX 8230 Edge Concentrator Release 1.2.10 xvi
Conventions xvii
Obtaining Documentation xviii
Cisco.com xviii
Ordering Documentation xviii
Documentation Feedback xviii
Obtaining Technical Assistance xix
Cisco TAC Website xix
Opening a TAC Case xix
TAC Case Priority Definitions xx
Obtaining Additional Publications and Information xx
CHAPTER 1Overview of the VISM and VISM-PR Cards 1-1
VISM and VISM-PR Card Types 1-1
VISM and VISM-PR Card Service Types 1-5
VISM and VISM-PR Card Physical Characteristics 1-5
VISM Card Architecture 1-5
VISM and VISM-PR Card Features 1-6
Redundancy and Bulk Distribution 1-8
Operating Modes 1-9
VoIP Switching and Switched AAL2 PVC Operating Modes 1-9
AAL2 Trunking Operating Mode 1-11
VoIP Trunking Operating Mode 1-12
AAL1/AAL2 SVC Operating Mode 1-12
Installing VISM Hardware and Software 1-13
Installing VISM Cards in MGX 8000 Series Chassis 1-13

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Installing VISM-PR Cards in MGX 8000 Series Chassis 1-13
MGX 8850 and MGX 8250 Chassis 1-14
MGX 8230 Chassis 1-15
Installing VISM and VISM-PR Front and Back Cards 1-15
Installing a VISM or VISM-PR Front Card 1-15
Installing a VISM Back Card 1-16
Connecting Cables to Cards 1-16
Removing VISM and VISM-PR Front and Back Cards 1-17
Removing a VISM or VISM-PR Front Card 1-17
Removing a VISM Back Card 1-17
Applying Power to the VISM Card 1-18
Installing VISM Software Upgrades 1-18
Software Upgrades 1-20
Prerequisites 1-20
VISM/VISM-PR Upgrades with PXM1 1-20
Download VISM/VISM-PR Boot Code and Firmware to PXM1 1-20
Upgrade VISM/VISM-PR Firmware with PXM1 Card 1-21
Boot Code Upgrade Procedure with PXM1 Cards 1-23
VISM-PR Upgrades with PXM1E and PXM45 1-23
Download VISM-PR Boot Code and Firmware to PXM1E and PXM45 1-24
Upgrade VISM-PR Firmware with PXM1E and PXM45 Cards 1-24
Boot Code Upgrade Procedure with PXM1E and PXM45 Cards 1-25
VISM/VISM-PR Downgrade Procedure 1-25
VISM to VISM-PR Hardware Upgrade 1-26
CHAPTER 2Telephony Applications Using VISM 2-1
Tandem Switch Offloading 2-1
Multiservice Access 2-3
AAL2 Trunking 2-3
CHAPTER 3VISM Functional Description 3-1
TDM Line-Handling Function 3-2
Bearer Processing Function 3-3
Echo Cancellation, Voice Compression, A/Mu Law Conversion 3-3
Voice Activity Detection and Silence Suppression 3-4
Fax and Modem Tone Detection 3-4
Jitter Control 3-5
CAS Handling 3-5
Signaling Function 3-5

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CAS Processing in VoIP Switching and Switched AAL2 PVC Operating Mode 3-6
CCS Processing in Switched AAL2 PVC Operating Mode 3-9
CAS Processing in AAL2 Trunking Operating Mode 3-11
CCS Processing in AAL2 Trunking Operating Mode 3-11
ATM Voice Data Processing Function 3-11
Transporting Voice Cells with VoIP 3-11
Transporting Voice Cells with Switched AAL2 PVC 3-13
Transporting Voice Cells with AAL2 Trunking 3-14
Transporting Voice Cells with Switched AAL1 SVC 3-14
Call Control Function 3-15
Connection Model 3-16
xGCP Extensions for AAL2 Switched PVC and AAL2 SVC Operating Modes 3-17
Endpoint Service States 3-17
Restart In Progress Command 3-18
Connection Admission Control 3-19
Embedded VISM Management Function 3-19
CHAPTER 4Configuring VISM Features 4-1
Using the Command Line Interface 4-1
VISM Command Attributes 4-2
Connecting to Cisco MGX 8000 Series Platforms 4-2
Logging In to PXM and VISM Cards 4-3
VISM Card Prompt 4-5
Logging Out of VISM and PXM Cards 4-5
Configuring VISM Features 4-6
Initial VISM Configuration 4-6
Initial Card Level Configuration 4-8
Configuring the Operating Mode 4-8
Allocating Resources 4-9
Configuring Connection Admission Control 4-10
Placing the VISM Card In Service 4-11
Placing the VISM Card Out of Service 4-11
Configuring the TDM Side 4-11
Configuring T1 and E1 Lines 4-11
Configuring the PXM and VISM Cards Clocking Source 4-14
Configuring the PXM1E or PXM45 Card as Clocking Source 4-17
Configuring DS0 Channels 4-17
Configuring Bearer Processing 4-27
Configuring Codecs 4-27

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Configuring ECAN 4-29
Configuring Jitter 4-30
Configuring PNNI for AAL1/AAL2 SVCs 4-31
Configuring the ATM Network Side 4-31
Configuring PVC Connections for All Operating Modes 4-32
Configuring VoIP Switching/Trunking Operating Mode Parameters 4-34
Configuring AAL2 Trunking Operating Mode Parameters 4-36
Configuring Switched AAL2 PVC Operating Mode Parameters 4-38
Configuring the Call Agent Interface 4-44
Configuring Domain Names and IP Addresses 4-45
Setting Up Call Agents and Protocols 4-45
Configuring Gateway Control Protocols 4-47
Configuring ISDN PRI Backhaul 4-49
Configuring Additional VISM Features 4-52
Mid-Call DTMF 4-55
Configurable Jitter Buffer 4-55
Adjustable Gain 4-55
Adjustable Music On-Hold Threshold 4-55
CALEA 4-55
MGC Redundancy 4-55
External DNS 4-56
2 IP Address Support 4-56
VoIP Trunking 4-56
T.38 Fax Relay 4-57
CAS Feature Enhancements 4-57
Programmable Tone Plans 4-57
Loop Start, DID, and Delay Dial 4-58
FGD 4-58
Configure Flash Hook and Glare Condition Attributes 4-59
Configure ANI and DNIS Digit Order 4-59
RFC 3064 Package Support 4-59
RFC 2833 Support 4-59
VISM Network Continuity Test 4-59
Configure PVC OAM Cell Parameters 4-60
PXM1E and PXM45 Card-Only Features 4-60
Call Agent-Controlled VoATM AAL1 and AAL2 SVC 4-61
AAL1 SVC-Based TDM Hairpinning 4-61
High Complexity Codec Support for VISM-PR—G.723.1 4-61
Announcement File System 4-62
Announcement Timeouts 4-62

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Announcement Direction 4-62
Broadcast Announcements 4-63
Multiple Announcement Requests for the Same Endpoint 4-63
Announcement File Server 4-63
Announcement File Server Name 4-63
Announcement File Server Directory Structure 4-63
VISM Announcement Cache Management 4-64
Announcement Expiry 4-64
Permanent Announcements 4-64
Call Agent-Controlled T.38 Fax 4-65
Additional Support for MGCP 1.0 4-66
RSVP-Based Admission Control 4-66
Clock Slip Counters 4-67
RTP Connection Statistics 4-68
CAS Immediate Start and Ground Start Glare Handling 4-68
Grooming for Local Traffic 4-68
MGX 8000 Series Implementation Enhancements 4-69
Additional VBR Enhancements 4-69
Expanded Clock Source Selection 4-69
Private Network-to-Network Interface Priority Routing 4-69
Additional SPVC Connection Management Capabilities 4-70
192 T1/248 E1 DS0 Support with High Complexity Codecs on VISM-PR 4-70
Channel Alarm Enhancement 4-70
VISM TDM Line Statistics Collection 4-70
CHAPTER 5CLI Commands 5-1
CHAPTER 6Troubleshooting Tips 6-1
VISM Card LEDs 6-1
VISM and PXM Display, Log, and Diagnostic Loopback Path CLI Commands 6-2
VISM Display Card CLI Command 6-3
PXM Display Log CLI Command 6-3
PXM Diagnostic Loopback Path CLI Commands 6-4
PXM1E and PXM 45 Display CLI Commands 6-4
VISM Alarms 6-5
UNIX Snoop Trace Tool 6-5
Symptoms and Solutions 6-5
VISM Card Did Not Become Active 6-6
T1/E1 Configuration Mismatch 6-6

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DSP Download Failure 6-7
VISM Front Card/Back Card Mismatch 6-8
Cannot Use the cc Command to Access a VISM Card 6-9
VISM Card Resets Intermittently 6-9
VISM Card Does Not Accept a Firmware Download 6-9
Echo Is Heard on a Voice Call 6-9
VISM Card LEDs Are Not Lighted 6-9
Firmware Does Not See the Card Insert Bit Status As Set 6-10
APPENDIX AVISM and VISM-PR Card Clocking Options A-1
PXM1 Card as Primary Clocking Source A-1
VISM Card as Primary Clocking Source A-3
VISM-PR Card as Primary Clocking Source A-3
PXM1E or PXM45 Card as Primary Clocking Source A-4
Revertive and Nonrevertive Clocking A-4
APPENDIX BVISM and VISM-PR—3.0 Specifications B-1
VISM Card Specifications B-1
VISM Card Physical Interface Specifications and Applicable Standards B-1
General VISM Card Standards B-2
VISM Card Counters Specifications B-2
VISM-PR Card Specifications B-3
VISM-PR Card Features B-3
INDEX

FIGURES
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Figure 1-1 VISM T1 and E1 Front Cards 1-2
Figure 1-2 VISM-PR T1 and E1 Front Cards 1-3
Figure 1-3 VISM T1 and E1 Back Cards 1-4
Figure 1-4 Cisco MGX 8850 and VISM as a Voice Gateway 1-4
Figure 1-5 VISM Card Block Diagram 1-6
Figure 1-6 VISM Block Diagram for VoIP Switching and Switched AAL2 PVC Operating Modes 1-10
Figure 1-7 VISM Block Diagram for the AAL2 Trunking Operating Mode 1-11
Figure 1-8 Available Chassis Slots for VISM Cards in the MGX 8850 and MGX 8250—Front View 1-14
Figure 1-9 Available Chassis Slots for VISM Cards in the Cisco MGX 8230—Front View 1-15
Figure 1-10 RJ-48 PIN Connector 1-17
Figure 2-1 VISM Used in a Tandem Switch Offloading Application 2-1
Figure 2-2 VISM Used as a Voice Gateway Application 2-2
Figure 2-3 AAL2 Trunking—One End 2-3
Figure 2-4 AAL2 Trunking—Two Ends 2-4
Figure 3-1 VISM Detailed Functional Blocks 3-2
Figure 3-2 VISM Signaling Paths 3-6
Figure 3-3 CAS Processing—Message Structure 3-7
Figure 3-4 CAS Signaling in Initiating and Terminating a Call 3-8
Figure 3-5 PRI/Backhaul Path 3-10
Figure 3-6 RUDP Session Hierarchy 3-10
Figure 3-7 VoIP Protocol Stack 3-12
Figure 3-8 VoIP Cell Packetization and Transmission 3-12
Figure 3-9 AAL2 Cell Packetization and Transmission 3-14
Figure 3-10 Call Agent Communications Links 3-15
Figure 3-11 Connection Model 3-16
Figure 3-12 VISM Card Config Screen—Card Elements Display 3-20
Figure 3-13 VISM Card Config Screen—VISM Features Display 3-21
Figure 4-1 PXM Back Card 4-3
Figure 4-2 VISM to Call Agent Communication 4-44
Figure 6-1 VISM Front Card LEDs 6-2
Figure A-1 VISM Configured for Local Clocking A-1

Figures
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Figure A-2 VISM Configured for Loop Clocking A-3

TABLES
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Table 1 Cisco MGX 8850 (PXM45) Multiservice Switch Release 3 Documentation xiv
Table 2 MGX 8850 (PXM1) Multiservice Switch Release 1.2.10 Documentation xv
Table 3 MGX 8250 Edge Concentrator Release 1.2.10 Documentation xvi
Table 4 MGX 8230 Edge Concentrator Documentation xvi
Table 5 Cisco VISM Related Documentation xvii
Table 3-1 Supported Codecs and Packetization Periods 3-4
Table 4-1 VISM Command Attributes—Log File, Card State, and Privilege Level 4-2
Table 4-2 Mandatory Initial VISM Configuration Command Sequence for All Operating Modes 4-7
Table 4-3 VISM/VISM-PR DS0 Density with Codec Support 4-17
Table 4-4 dspaal2profile Field Descriptions 4-39
Table 4-5 AAL2 Operating Mode Profiles 4-40
Table 4-6 VISM 3.0 Built-in (Preconfigured) Tone Plans 4-57
Table 4-7 VISM/VISM-PR and MGX 8000 Series Switch Support 4-60
Table 4-8 Announcement File System Feature CLI Commands 4-64
Table 4-9 MGCP 1.0 Feature CLI Commands 4-66
Table 4-10 RSVP-Based Admission Control Feature CLI Commands 4-67
Table 11 VISM/VISM-PR DS0 Density with Codec Support 4-70
Table 5-1 Tone Plan Definition File Syntax 5-46
Table 5-2 Codec Type Default Values 5-153
Table 5-3 VISM Release 2.2(0) Built-in Tone Plans 5-442
Table 6-1 VISM T1 and E1 Card Alarms 6-5
Table A-1 Revertive/Nonrevertive Clocking and PXM Back Card Support A-5

Tables
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Preface
This preface describes the objectives, audience, organization, and conventions of the Cisco VISM
Installation and Configuration Guide.
Objectives
This document describes the features, functions, installation, operation, and command line interface of
Cisco Voice Interworking Service Module (VISM) Release 3.0.
Audience
This document is intended for the following personnel:
•Technicians responsible for installing VISM cards on the Cisco MGX 8230, MGX 8250, and
MGX 8850 shelf.
•Network administrators responsible for configuring the Cisco MGX 8850 shelf.
Cisco recommends that installers be familiar with electronic circuitry and wiring practices and have
experience as an electronic or electromechanical technician. Installers and network administrators
should also be familiar with Cisco switches and routers, T1 and E1 voice lines, and Cisco wide area
networks. Cisco also recommends that you have a system administrator present who is familiar with your
network and UNIX servers during the initial installation of a Cisco MGX 8000 Series platform.
Document Organization
This document contains the following chapters:
•Chapter 1, “Overview of the VISM and VISM-PR Cards,” provides a general introduction to VISM
and describes the hardware and software modules, and installation procedures.
•Chapter 2, “Telephony Applications Using VISM,” describes VISM applications for a variety of
voice networking situations.
•Chapter 3, “VISM Functional Description,” describes VISM’s functional operation.
•Chapter 4, “Configuring VISM Features,” describes the initial mandatory configuration procedures
for using VISM cards in each of the operating modes.

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Preface
Related Documentation
•Chapter 5, “CLI Commands,” describes the syntax and semantics of each VISM command line
interface command.
•Chapter 6, “Troubleshooting Tips,” describes VISM troubleshooting tools and techniques.
•Appendix A, “VISM and VISM-PR Card Clocking Options,” describes clocking configuration for
both the VISM card and MGX 8000 Series platform PXM cards.
•Appendix B, “VISM and VISM-PR—3.0 Specifications,” describes the specifications of VISM
Release 3.0.
Related Documentation
The following sections describe documentation you may need to reference as you use the VISM product.
Cisco MGX 8850 (PXM45) Multiservice Switch Release 3
The documentation for the installation and operation of the MGX 8850 Multiservice Switch for Release
3 is listed in Table 1.
Table 1 Cisco MGX 8850 (PXM45) Multiservice Switch Release 3 Documentation
Title Description
Cisco MGX 8850 Hardware Installation Guide, Release 3
(PXM45/B and PXM1E) Describes how to install the MGX 8850 multiservice switch. This guide explains what the switch does and covers site
preparation, grounding, safety, card installation, and cabling.
The MGX 8850 switch uses either a PXM45 or a PXM1E
controller card and provides support for both broadband and
narrow band service modules.
Cisco MGX 8850, MGX 8950, and MGX 8830 Command
Reference (PXM45/B and PXM1E), Release 3 Describes how to use the PXM and AXSM commands that are available for the MGX 8850, MGX 8950, and MGX 8830
switches.
Cisco Frame Relay Software Configuration Guide and
Command Reference for the MGX 8850 FRSM12 Card,
Release 3
Describes how to use the high-speed Frame Relay (FRSM12)
commands that are available for the MGX 8850 switch.
Cisco MGX 8850 (PXM45) and MGX 8950 Software
Configuration Guide, Release 3 Describes how to configure MGX 8850 and MGX 8950 switches with PXM45 controller cards to operate as ATM edge or core
switches. This guide also provides some operation and
maintenance procedures.
Cisco MGX and SES PNNI Network Planning Guide for
MGX Release 3 and SES Release 3 Provides guidelines for planning a PNNI network that uses the MGX 8850 and the MGX 8950 switches and the BPX 8600
switches. When connected to a PNNI network, each BPX 8600
series switch requires a SES for PNNI route processing.
Cisco MGX Route Processor Module (RPM-XF)
Installation and Configuration Guide, Release 3 Describes how to install and configure the MGX Route Processor Module (RPM-XF) in the MGX 8850 Release 3 switch. Also
provides site preparation, troubleshooting, maintenance, cable
and connector specifications, and basic Cisco IOS configuration
information.

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Preface
Related Documentation
MGX 8850 (PXM1) Multiservice Switch Release 1.2.10
The documentation for the installation and operation of the MGX 8850 (PXM1) Multiservice Switch is
listed in Table 2.
Cisco MGX Route Processor Module (RPM-PR)
Installation and Configuration Guide, Release 2.1 Describes how to install and configure the MGX Route Processor Module (RPM-PR) in the MGX 8850 Release 2.1 and later
switches. Also provides site preparation, troubleshooting,
maintenance, cable and connector specifications, and basic
Cisco IOS configuration information.
Release Notes for Cisco MGX Route Processor Module
(RPM/B and RPM-PR) for Release 1.2.10 and Release 3 Provides the latest feature, upgrade, and compatibility information, as well as known and resolved anomalies for
RPM-PR.
Table 1 Cisco MGX 8850 (PXM45) Multiservice Switch Release 3 Documentation (continued)
Title Description
Table 2 MGX 8850 (PXM1) Multiservice Switch Release 1.2.10 Documentation
Title Description
Cisco MGX 8850 Multiservice Switch Installation and
Configuration, Release 1.1.3 Provides installation instructions for the MGX 8850 multiservice switch.
Cisco MGX 8800 Series Switch Command Reference,
Release 1.1.3 Provides detailed information on the general command line for the MGX 8850 switch.
Cisco MGX 8800 Series Switch System Error Messages,
Release 1.1.3 Provides error message descriptions and recovery procedures.
Cisco MGX 8850 Multiservice Switch Overview,
Release 1.1.3 Provides a technical description of the system components and functionality of the MGX 8850 multiservice switch from a
technical perspective.
Cisco MGX Route Processor Module Installation and
Configuration Guide, Release 1.1 Describes how to install and configure the MGX Route Processor Module (RPM/B and RPM-PR) in the MGX 8850, MGX 8250,
and MGX 8230 Release 1 switch. Also provides site preparation,
troubleshooting, maintenance, cable and connector
specifications, and basic Cisco IOS configuration information.
Release Notes for Cisco MGX 8230, MGX 8250, and
MGX 8850 (Release 1), Software Version 1.2.10 (PXM1) Provides new feature, upgrade, and compatibility information, as well as known and resolved anomalies.
Release Notes for Cisco MGX Route Processor Module
(RPM/B and RPM-PR) for Release 1.2.10 and Release 3 Provides new feature, upgrade, and compatibility information, as well as known and resolved anomalies.

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Preface
Related Documentation
MGX 8250 Edge Concentrator Release 1.2.10
The documentation for the installation and operation of the MGX 8250 Edge Concentrator is listed in
Table 3.
MGX 8230 Edge Concentrator Release 1.2.10
The documentation for the installation and operation of the MGX 8230 Edge Concentrator is listed in
Table 4.
Table 3 MGX 8250 Edge Concentrator Release 1.2.10 Documentation
Title Description
Cisco MGX 8250 Edge Concentrator Installation and
Configuration, Release 1.1.3 Provides installation instructions for the MGX 8250 Edge Concentrator.
Cisco MGX 8250 Multiservice Gateway Command
Reference, Release 1.1.3 Provides detailed information on the general command line interface commands.
Cisco MGX 8250 Multiservice Gateway Error Messages,
Release 1.1.3 Provides error message descriptions and recovery procedures.
Cisco MGX 8250 Edge Concentrator Overview,
Release 1.1.3 Describes the system components and functionality of the MGX 8250 Edge Concentrator from a technical perspective.
Cisco MGX Route Processor Module Installation and
Configuration Guide, Release 1.1 Describes how to install and configure the MGX Route Processor Module (RPM/B and RPM-PR) in the MGX 8850, MGX 8250,
and MGX 8230 Release 1 switch. Also provides site preparation,
troubleshooting, maintenance,cable and connector specifications,
and basic Cisco IOS configuration information.
Release Notes for Cisco MGX 8230, MGX 8250, and
MGX 8850 (Release 1), Software Version 1.2.10 (PXM1) Provides new feature, upgrade, and compatibility information, as well as known and resolved anomalies.
Release Notes for Cisco MGX Route Processor Module
(RPM/B and RPM-PR) for Release 1.2.10 and Release 3 Provides new feature, upgrade, and compatibility information, as well as known and resolved anomalies.
Table 4 MGX 8230 Edge Concentrator Documentation
Title Description
Cisco MGX 8230 Edge Concentrator Installation and
Configuration, Release 1.1.3 Provides installation instructions for the MGX 8230 Edge Concentrator.
Cisco MGX 8230 Multiservice Gateway Command
Reference, Release 1.1.3 Provides detailed information on the general command line interface commands.
Cisco MGX 8230 Multiservice Gateway Error Messages,
Release 1.1.3 Provides error message descriptions and recovery procedures.
Cisco MGX 8230 Edge Concentrator Overview,
Release 1.1.3 Provides a technical description of the system components and functionality of the MGX 8250 Edge Concentrator from a
technical perspective.

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Preface
Conventions
The documentation listed in Table 5 contain additional information related to the operation of the Cisco
VISM product.
Conventions
This publication uses the following conventions to describe commands:
•Bold type—indicates command names and user entry text.
•Italic type—indicates arguments for which you supply values.
•| |—vertical bars indicate optional arguments.
This publication uses the following conventions to describe examples:
•Courier font—indicates terminal sessions and system display information.
•Courier bold font—indicates user entry.
Cisco MGX Route Processor Module Installation and
Configuration Guide, Release 1.1 Describes how to install and configure the MGX Route Processor Module (RPM/B and RPM-PR) in the MGX 8850, MGX 8250,
and MGX 8230 Release 1 switch. Also provides site preparation,
troubleshooting, maintenance,cable and connector specifications,
and basic Cisco IOS configuration information.
Release Notes for Cisco MGX 8230, MGX 8250, and
MGX 8850 (Release 1), Software Version 1.2.10 (PXM1) Provides new feature, upgrade, and compatibility information, as well as known and resolved anomalies.
Release Notes for Cisco MGX Route Processor Module
(RPM/B and RPM-PR) for Release 1.2.10 and Release 3 Provides new feature, upgrade, and compatibility information, as well as known and resolved anomalies.
Table 4 MGX 8230 Edge Concentrator Documentation (continued)
Title Description
Table 5 Cisco VISM Related Documentation
Document Description
Cisco MGX 8850 Multiservice Switch Installation
and Configuration, Release 1.1.31 Cisco MGX 8850 shelf installation procedures—refer to the sections describing the installation and configuration of the PXM1 card.
Cisco MGX 8800 Series Switch Command
Reference, Release 1.1.31 Cisco MGX 8800 shelf command line interface commands—refer to the commands that apply to the PXM1 card.
Cisco MGX 8250 Edge Concentrator Installation
and Configuration, Release 1.1.31 Cisco MGX 8250 shelf installation procedures—refer to the sections describing the installation and configuration of the PXM1 card.
Cites MGX 8250 Multiservice Gateway Command
Reference, Release 1.1.31 Cisco MGX 8250 shelf command line interface commands—refer to the commands that apply to the PXM1 card.
Cisco MGX 8230 Edge Concentrator Installation
and Configuration, Release 1.1.31 Cisco MGX 8230 shelf installation procedures—refer to the sections describing the installation and configuration of the PXM1 card.
Cisco MGX 8230 Multiservice Gateway Command
Reference, Release 1.1.31 Cisco MGX 8230 shelf command line interface commands—refer to the commands that apply to the PXM1 card.
1.1.32 Version Software Release Notes Cisco WAN
MGX 8850, 8230, and 8250 Software Hardware and software feature upgrades for the Cisco MGX 8850, MGX 8230, and MGX 8250.

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Obtaining Documentation
Note Means reader take note. Notes contain helpful suggestions or references to materials not contained
in this manual.
Caution Means reader be careful. In this situation, you might do something that could result in equipment
damage or loss of data.
Obtaining Documentation
Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several
ways to obtain technical assistance and other technical resources. These sections explain how to obtain
technical information from Cisco Systems.
Cisco.com
You can access the most current Cisco documentation on the World Wide Web at this URL:
http://www.cisco.com/univercd/home/home.htm
You can access the Cisco website at this URL:
http://www.cisco.com
International Cisco websites can be accessed from this URL:
http://www.cisco.com/public/countries_languages.shtml
Ordering Documentation
You can find instructions for ordering documentation at this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/pdi.htm
You can order Cisco documentation in these ways:
•Registered Cisco.com users (Cisco direct customers) can order Cisco product documentation from
the Ordering tool:
http://www.cisco.com/en/US/partner/ordering/index.shtml
•Nonregistered Cisco.com users can order documentation through a local account representative by
calling Cisco Systems Corporate Headquarters (California, USA) at 408 526-7208 or, elsewhere in
North America, by calling 800 553-NETS (6387).
Documentation Feedback
You can submit e-mail comments about technical documentation to [e-mail].

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Obtaining Technical Assistance
You can submit comments by using the response card (if present) behind the front cover of your
document or by writing to the following address:
Cisco Systems
Attn: Customer Document Ordering
170 West Tasman Drive
San Jose, CA 95134-9883
We appreciate your comments.
Obtaining Technical Assistance
For all customers, partners, resellers, and distributors who hold valid Cisco service contracts, the Cisco
Technical Assistance Center (TAC) provides 24-hour-a-day, award-winning technical support services,
online and over the phone. Cisco.com features the Cisco TAC website as an online starting point for
technical assistance. If you do not hold a valid Cisco service contract, please contact your reseller.
Cisco TAC Website
The Cisco TAC website provides online documents and tools for troubleshooting and resolving technical
issues with Cisco products and technologies. The Cisco TAC website is available 24 hours a day, 365
days a year. The Cisco TAC website is located at this URL:
http://www.cisco.com/tac
Accessing all the tools on the Cisco TAC website requires a Cisco.com user ID and password. If you
have a valid service contract but do not have a login ID or password, register at this URL:
http://tools.cisco.com/RPF/register/register.do
Opening a TAC Case
Using the online TAC Case Open Tool is the fastest way to open P3 and P4 cases. (P3 and P4 cases are
those in which your network is minimally impaired or for which you require product information.) After
you describe your situation, the TAC Case Open Tool automatically recommends resources for an
immediate solution. If your issue is not resolved using the recommended resources, your case will be
assigned to a Cisco TAC engineer. The online TAC Case Open Tool is located at this URL:
http://www.cisco.com/tac/caseopen
For P1 or P2 cases (P1 and P2 cases are those in which your production network is down or severely
degraded) or if you do not have Internet access, contact Cisco TAC by telephone. Cisco TAC engineers
are assigned immediately to P1 and P2 cases to help keep your business operations running smoothly.
To open a case by telephone, use one of the following numbers:
Asia-Pacific: [phone] (Australia: 1 800 805 227)
EMEA: [phone]
USA: 1 800 553-2447
For a complete listing of Cisco TAC contacts, go to this URL:
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml

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Obtaining Additional Publications and Information
TAC Case Priority Definitions
To ensure that all cases are reported in a standard format, Cisco has established case priority definitions.
Priority 1 (P1)—Your network is “down” or there is a critical impact to your business operations. You
and Cisco will commit all necessary resources around the clock to resolve the situation.
Priority 2 (P2)—Operation of an existing network is severely degraded, or significant aspects of your
business operation are negatively affected by inadequate performance of Cisco products. You and Cisco
will commit full-time resources during normal business hours to resolve the situation.
Priority 3 (P3)—Operational performance of your network is impaired, but most business operations
remain functional. You and Cisco will commit resources during normal business hours to restore service
to satisfactory levels.
Priority 4 (P4)—You require information or assistance with Cisco product capabilities, installation, or
configuration. There is little or no effect on your business operations.
Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is available from various online
and printed sources.
•Cisco Marketplace provides a variety of Cisco books, reference guides, and logo merchandise. Go
to this URL to visit the company store:
http://www.cisco.com/go/marketplace/
•The Cisco Product Catalog describes the networking products offered by Cisco Systems, as well as
ordering and customer support services. Access the Cisco Product Catalog at this URL:
http://cisco.com/univercd/cc/td/doc/pcat/
•Cisco Press publishes a wide range of general networking, training and certification titles. Both new
and experienced users will benefit from these publications. For current Cisco Press titles and other
information, go to Cisco Press online at this URL:
http://www.ciscopress.com
•Packet magazine is the Cisco quarterly publication that provides the latest networking trends,
technology breakthroughs, and Cisco products and solutions to help industry professionals get the
most from their networking investment. Included are networking deployment and troubleshooting
tips, configuration examples, customer case studies, tutorials and training, certification information,
and links to numerous in-depth online resources. You can access Packet magazine at this URL:
http://www.cisco.com/packet
•iQ Magazine is the Cisco bimonthly publication that delivers the latest information about Internet
business strategies for executives. You can access iQ Magazine at this URL:
http://www.cisco.com/go/iqmagazine