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This guide contains operations, maintenance, and troubleshooting information for the Cisco SC2200 and VSC3000 products. These products operate as signaling controllers (SCs) or virtual switch controllers (VSCs) in various Cisco telephony solutions. Some of the documentation for your telephony solution might use the terms signaling controller and virtual switch controller to refer to features that are unique to the separate products. The term media gateway controller (MGC) used in this guide is a generic term that applies to both signaling controllers and virtual switch controllers.
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Note Some product labels and packaging might use the older term telephony controller instead of media gateway controller. Cisco is updating its product naming and terminology to keep pace with the rapid changes in this evolving industry. As part of this effort, Cisco is discontinuing the use of the term telephony controller and is using the term media gateway controller. Any references to telephony controller you might see in the documentation applies to the media gateway controller. |
This guide provides instructions for operating, maintaining, and troubleshooting the following elements of the Cisco MGC node:
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Note The Cisco MGC node also includes two optional elements, the Cisco MGC Node Manager (CMNM) and the Billing and Measurements Server (BAMS). Operations, maintenance, and troubleshooting information for these two optional elements can be found in the Cisco MGC Node Manager User Guide and the Billing and Measurements Server User Guide. |
This guide can be used when operating with a fault-tolerant Sun configuration, as well as any of the following configurations:
This guide also includes advanced topics related to systems operation, signal channel operation, status alarm management, platform utilities, and Cisco MGC system management, including failover, switchover, system administration, and software support procedures.
This guide describes operating and maintaining these units individually and as components of larger systems, and describes how to determine when something goes wrong, how to isolate the problem, and how to fix many of the common problems you might encounter.
This guide is intended for three audiences: the system administrator, the system operator, and the system technician.
Table 1 lists the publications included with various Cisco telephony solutions and indicates the recommended sequence for installing and configuring the system. The grayed box in this table indicates the publication you are currently reading.
| Functional Area | Publication | Description and Audience |
|---|---|---|
Solution Overviews | Cisco SS7 Interconnect for Access Servers Solution Overview Cisco SS7 Interconnect for Voice Gateways Solution Overview Cisco SS7 PRI Gateway Solution Overview | Provide high-level overviews of the respective solutions. Briefly describe the functionality of elements of the solution, system interfaces and protocols, and how the solution works. The audience for these publications include the managers and engineers responsible for IT/IS solutions, as well as the personnel responsible for installing, configuring, operating, and maintaining the solutions. |
Hardware Installations | Cisco Media Gateway Controller Hardware Installation Guide Cisco SS7 PRI Gateway Solution Media Gateway Installation and Configuration Guide Cisco SS7 Interconnect for Access Servers and Voice Gateways Solutions Media Gateway Guide | Describe how to install the hardware components of the respective solutions. Include detailed information on the environmental requirements for all the components and step-by-step hardware installation and operational verification procedures. Also provides a checklist of the hardware you should have before starting the installation and a checklist of all the connections for the components. The audience for these publications is the engineering personnel responsible for installing the components and verifying the hardware installation. |
Software Installations | Cisco Media Gateway Controller Software Release 7 Installation and Configuration Guide Cisco Media Gateway Controller Software Release 7 Reference Guide Cisco SS7 Interconnect for Access Servers Solution Upgrade Guide | Describe the steps necessary to install and upgrade the software components of the Cisco Media Gateway Controller. The audience for these publications is the engineering personnel responsible for installing, configuring, and upgrading software for the respective solutions. |
Provisioning | Cisco Media Gateway Controller Software Release 7 Provisioning Guide Cisco SS7 PRI Gateway Solution Provisioning Guide Cisco SS7 Interconnect for Access Servers and Voice Gateways Solutions Provisioning Guide | Provide step-by-step procedures for provisioning the Cisco Systems components of the respective solutions. The audience for these publications is the engineering personnel responsible for provisioning the solutions. |
Operations, Maintenance, and Troubleshooting | Cisco Media Gateway Controller Software Release 7 Operations, Maintenance, and Troubleshooting Guide | Describes the procedures necessary to conduct day-to-day operations, to perform preventive and corrective maintenance, and to troubleshoot the various components of the solution. The audience for this publication is the system administrators, system operators, and service technicians responsible for operating, maintaining, and servicing the components of the respective solutions |
Other useful reference publications include
Figure 1 provides a graphical documentation road map, illustrating the sequence in which the various manuals documenting Cisco telephony solutions should be read.
Table 2 provides a listing and description of the chapters and appendices that make up this document.
| Chapter/ Appendix | Title | Description |
|---|---|---|
Contains high-level descriptions of the operations, maintenance, and troubleshooting procedures contained in this guide. | ||
Contains the recommended startup and shutdown procedures for each component of the solution. | ||
Describes how to manage Cisco Media Gateway Controller operations, including starting and stopping the application, running the process manager, operation of the switchover process, stopping and starting processes, retrieving signal channel attributes, and changing signal service states. | ||
Contains the overall maintenance strategies for the Cisco telephony solution. | ||
Describes maintenance of the Cisco Media Gateway Controller hosts, including LED descriptions, shutdown and restart procedures, spare parts stocking levels, the log rotation utility, the diskmonitor program, and backup procedures. | ||
Describes maintenance of the Cisco SLT, including checking equipment status, replacing a complete signal processor, replacing hardware components, and additional maintenance tasks. | ||
Describes maintenance of Cisco Catalyst MSRs, including checking equipment status, replacing a complete router, and replacing various components. | ||
Describes strategies for isolating problems, including the use of system alarms, indicators, and interfaces. Describes how to troubleshoot the Sun Netras and Cisco Media Gateway Controllers. Troubleshooting includes working with alarms and resolving signaling channel problems, signaling destination problems, and bearer connection problems. System logs are also described. | ||
Describes the Cisco MGC log files: how to view log files, how to print log files, and how to interpret log files. Also describes how to use the Cisco MGC software to retrieve network measurements and statistics, including call detail, measurement, and alarm records. | ||
Describes how to troubleshoot the Cisco Signaling Link Terminals (SLTs), including Cisco SLT to STP signaling links and Cisco SLT to Cisco MGC signaling links. | ||
Describes troubleshooting the Cisco Multi Switch Router using the command line interface, as well as virtual pathways and links. | ||
Lists the measurements used by the Cisco Media Gateway Controller (MGC). |
Table 3 provides descriptions of the conventions used in this document.
| Convention | Meaning | Comments |
|---|---|---|
Boldface | Commands and keywords you enter literally as shown. | offset-list |
Italics | Variables for which you supply values. | command type interface You replace the variable with the type of interface. In contexts that do not allow italics, such as online help, arguments are enclosed in angle brackets (< >). |
Square brackets ([ ]) | Optional elements. | command [abc] abc is optional (not required), but you can choose it. |
Vertical bars ( | ) | Separated alternative elements. | command [ abc | def ] You can choose either abc or def, or neither, but not both. |
Braces ({ }) | Required choices. | command { abc | def } You must use either abc or def, but not both. |
Braces and vertical bars within square brackets | A required choice within an optional element. | command [ abc { def | ghi } ] You have three options: |
Caret character (^) | Control key. | The key combinations ^D and Ctrl-D are equivalent: Both mean hold down the Control key while you press the D key. Keys are indicated in capital letters, but are not case-sensitive. |
A string | A nonquoted set of characters. | For example, when setting an SNMP community string to public, do not use quotation marks around the string; otherwise, the string will include the quotation marks. |
| Denotes interactive sessions, indicates that the user enters commands at the prompt. | The system prompt indicates the current command mode. For example, the prompt |
| Terminal sessions and information the system displays. |
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Angle brackets (< >) | Nonprinting characters such as passwords. |
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Exclamation points (!) at the beginning of a line | A comment line. | Comments are sometimes displayed by the Cisco IOS software. |
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Note Means reader take note. Notes contain helpful suggestions or references to material not covered in the guide. |
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Caution Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data. |
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Warning This warning symbol means danger. You are in a situation that could cause bodily injury. Before you work on any equipment, you must be aware of the hazards involved with electrical circuitry and familiar with standard practices for preventing accidents. (To see translated versions of this warning, refer to the Regulatory Compliance and Safety Information that accompanied your equipment.) |
Table 4 provides a description of the various data type conventions used in this document.
| Data Type | Definition | Example | ||
|---|---|---|---|---|
Integer | A series of decimal digits from the set of 0 through 9 that represents a positive integer. An integer might have one or more leading zero (0) digits padded on the left side to align the columns. Leading zeros are always valid as long as the number of digits is less than or equal to ten digits total. The range of values is zero through 4294967295. | 123 000123 4200000000 | ||
Signed integer | This data type has the same basic format as the integer but can be both positive and negative. When negative, it is preceded by the minus sign (-) character. As with the integer data type, this can be as many as 10 digits in length, not including the sign character. The value of this type has a range of -2147483647 through 2147483647. | 123 -000123 -2100000000l | ||
Hexadecimal | A series of sixteen-based digits from the set of 0-9, a-f, or A-F. The hexadecimal number might have one or more 0 digits padded on the left side. For all hexadecimal values, the maximum size is 0xffffffff (8 hexadecimal digits). | 1f3 01f3000 | ||
Text | A series of alphanumeric characters from the ASCII character set, where defined. Tab, space, and double quote (" " ) characters cannot be used. Text can be as many as 255 characters; however, it is recommended that you limit the characters to no more than 32 for readability. | EntityID LineSES_Threshold99 | ||
String | A series of alphanumeric characters and white-space characters. A string is surrounded by a double quote on the left and right sides (" " ). Text can be as many as 255 characters; however, it is recommended that you limit the characters to no more than 80 for readability. | "This is a descriptive string." | ||
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Primary key | Every table in the Configuration File chapters has one or more primary key fields. These fields are marked in the description with a "[Primary Key]" indicator. The Primary Key is the unique identifier of a record in the table. |
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Foreign key | One or more fields in a table might have a foreign key entry. These fields are marked in the description with a "[Foreign Key]" indicator. The Foreign Key is the unique identifier of a record in another table. It is used to reference a record from one table in another table. The Table Relationships chapter graphically diagrams the foreign key relationships. |
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IP Address | The standard TCP/IP address expressed as four numbers, where each is from 0 through 255 and separated by periods. | 139.85.60.17 or 127.55.13.200 | ||
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Note All known exceptions to these conventions are expressed in the specific format sections of this document. |
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In North America, TAC can be reached at 800 553-2447 or 408 526-7209. For other telephone numbers and TAC e-mail addresses worldwide, consult the following web site: http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml.
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