The CMTS object describes a Cable Modem Termination System, which provides IP Over Cable service to subscribers. It specifies parameters that control communications between the Call Agent and the CMTS. Many of these parameters control the detailed operation of the CMTS as defined in the PacketCable specification; you will not normally need to change these except as instructed by your CMTS supplier or by MetaSwitch support personnel.
The CMTS is a child of the Cable Modem Termination Systems object.
Parameter |
Access |
Description |
CMTS index | Create | A numeric value that identifies this CMTS among all other CMTSs on the NE. This field is optional; if you do not supply a value, the EMS assigns one. |
Description | Change | A text string used in the EMS System Explorer to identify this CMTS. Specify a string of up to 64 characters. |
Customer information | Change | A text field that can be used to store information about the CMTS, for example the address of the customer associated with it. This field is optional; you can supply up to 64 characters of free-form text. The text wraps to the width of the field on screen, or you can use the Enter key to force linebreaks. The total contents of all six Customer information fields must not exceed 164 characters. |
Customer information 2 | Change | A text field that can be used to store additional information about the CMTS. This field is optional; you can supply up to 32 characters of free-form text. The total contents of all six Customer information fields must not exceed 164 characters. |
Customer information 3 | Change | A text field that can be used to store additional information about the CMTS. This field is optional; you can supply up to 32 characters of free-form text. The total contents of all six Customer information fields must not exceed 164 characters. |
Customer information 4 | Change | A text field that can be used to store additional information about the CMTS. This field is optional; you can supply up to 32 characters of free-form text. The total contents of all six Customer information fields must not exceed 164 characters. |
Customer information 5 | Change | A text field that can be used to store additional information about the CMTS. This field is optional; you can supply up to 32 characters of free-form text. The total contents of all six Customer information fields must not exceed 164 characters. |
Customer information 6 | Change | A text field that can be used to store additional information about the CMTS. This field is optional; you can supply up to 32 characters of free-form text. The total contents of all six Customer information fields must not exceed 164 characters. |
IP address | Change Inactive | The IP address of this CMTS, used by the Call Agent to send control messages. This parameter is optional if you have specified a Domain name that can be resolved to an IP address using the NE's Domain Name Services settings. Specify a standard dotted-decimal IP address. |
Domain name | Change Inactive | Domain name for the CMTS. This parameter is optional if you have specified the IP address. If you specify both parameters, the domain name must resolve to the specified address. Both relative and absolute domain names are supported in this field. A relative domain name is made up of letters A-Z (either uppercase or lowercase), digits, and hyphens. The first character must be a letter. An absolute domain name is a list of one or more relative domain names separated by dot (period) characters. |
Resolved IP address | Read only | The IP address of this CMTS that was determined from the supplied domain name using Domain Name Services. |
Port | Change Inactive | The IP port number (1 - 65535) used by the Call Agent to send control messages. The default is 2126. |
Connection state | Read only | The state of the connection between the Call Agent and the CMTS. Values:
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CMTS-ID | Read only | The identifier sent by the CMTS to the Call Agent on a Client-Open message. |
DiffServ Code Point (DSCP) - Normal | Change | DSCP used to tag voice packets for normal calls, signaled by the Call Agent to the CMTS on the Gate-Set message. Range: 0 - 63. The default is 24, which is the MetaSwitch NE's standard value for voice packets. If you have more than one CMTS in different networks, you may need to set a different value for each network. |
DiffServ Code Point (DSCP) - Priority | Change | DSCP used to tag voice packets for priority calls, signaled by the Call Agent to the CMTS on the Gate-Set message. Range: 0 - 63. The default is 24, which is the MetaSwitch NE's standard value for voice packets. If you have more than one CMTS in different networks, you may need to set a different value for each network. |
Timers - keep-alive timer | Change Inactive | Time in seconds within which the CMTS must send a keep-alive message to the Call Agent (the CMTS normally sends keep-alives at intervals of three-quarters of the specified value). If the timer expires, the Call Agent brings down the TCP connection and attempts to re-establish it. Range: 1 - 65535 seconds, or zero to indicate no timeout. The default is 30. |
Timers - ack timer | Change | Time in milliseconds for which the Call Agent waits for a response to a Gate-Set message. If the timer expires, the Call Agent acts as though an error response was received. Range: 1 - 65535 milliseconds, or zero to indicate no timeout. The default is 3000 (3 seconds). |
Timers - gate deletion timer (T5) | Change | Time in milliseconds for which the Call Agent waits for a Gate-Close as a response to a DLCX. If the timer expires, the Call Agent sends a Gate-Delete message. Range: 1 - 65535 milliseconds, or zero to indicate no timeout. The default is 5000 (5 seconds). |
Timers - gate commit timer (T1) | Change | Time in seconds for which the CMTS should wait between authorization and commitment of resources. This value is sent to the CMTS on a Gate-Set. Range: 1 - 65535 seconds, or zero to indicate that the CMTS should use its provisioned default. The default is 300 (5 minutes). |
Timers - admitted QoS parameters timer (T7) | Change | Time in seconds for which the CMTS should continue to reserve bandwidth in excess of that actually in use for a call. This value is sent to the CMTS on a Gate-Set. Range: 0 - 65535 seconds (the meaning of a zero value depends on the operation of the CMTS). The default is 200 (3 minutes 20 seconds). |
Timers - active QoS parameters timer (T8) | Change | Time in seconds for which resources can remain unused on an active service flow. This value is sent to the CMTS on a Gate-Set, and allows the CMTS to free resources if a call ends abnormally. Range: 1 - 65535 seconds, or zero to indicate no timeout. The default is zero. |
Alarm state | Read only | Specifies whether any alarms are currently raised for the CMTS. Values:
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Alarm log correlator - Attention Required | Read only | Identifier of the log message for the event that caused the last Attention Required alarm state for this object. This field is reset when the Attention Required alarm events field is reset to zero. |
Attention Required alarm events | Read only / Reset | Number of times (since the alarm count was reset) that this object's alarm state has gone to Attention Required. |
Alarm state changed timestamp | Read only | The time at which the Alarm state last changed. |
Alarm events reset timestamp | Read only | The time at which the alarm count was last reset to zero. |
Diagnostics - logging - log level | Change | Specifies the level of logs recorded for this object. Logs with a priority equal to or greater than the priority specified are recorded. Set to Default level to use the system-wide default level. Values:
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Diagnostics - API trace - enabled | Change | Specifies whether API tracing is enabled for this object. Values:
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Diagnostics - API trace - trace tag | Change | An optional diagnostics tag inserted into API tracing and PD logging for this object. This tag may include any ASCII characters. However, if you want to filter on this tag in the craft interface, do not include spaces or any of the characters ^ \ $ * + ? | ( ) , . ` ' " [ ] { }. |
Requested status | Read only | Specifies whether an administrator has attempted to activate the Configured SIP Binding. Values:
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Actual status | Read only | Specifies the current status of the Configured SIP Binding. Values:
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