Root data model version, e.g. 2.4. For a vendor-defined root data model, this is the standard Broadband Forum model on which the vendor-defined model is based.

Possible patterns:

• 2\.\d+

This parameter MUST always be included in Inform messages.

Enables and disables the CPE’s support for CWMP. false means that CWMP support in the CPE is disabled, in which case the device MUST NOT send any Inform messages to the ACS or accept any Connection Request notifications from the ACS. true means that CWMP support on the CPE is enabled. The subscriber can re-enable the CPE’s CWMP support either by performing a factory reset or by using a LAN-side protocol to change the value of this parameter back to true.

The factory default value MUST be true.

Password used to authenticate the CPE when making a connection to the ACS using the CPE WAN Management Protocol. This password is used only for HTTP-based authentication of the CPE. Note that on a factory reset of the CPE, the value of this parameter might be reset to its factory value. If an ACS modifies the value of this parameter, it SHOULD be prepared to accommodate the situation that the original value is restored as the result of a factory reset.

When read, this parameter returns an empty string, regardless of the actual value.

ParameterKey provides the ACS a reliable and extensible means to track changes made by the ACS. The value of ParameterKey MUST be equal to the value of the ParameterKey argument from the most recent successful SetParameterValues, AddObject, or DeleteObject method call from the ACS. The CPE MUST set ParameterKey to the value specified in the corresponding method arguments if and only if the method completes successfully and no fault response is generated. If a method call does not complete successfully (implying that the changes requested in the method did not take effect), the value of ParameterKey MUST NOT be modified. The CPE MUST only modify the value of ParameterKey as a result of SetParameterValues, AddObject, DeleteObject, or due to a factory reset. On factory reset, the value of ParameterKey MUST be set to an empty string.

This parameter MUST always be included in Inform messages.

Active Notification requests for this parameter MAY be denied.

HTTP URL, as defined in [RFC3986], for an ACS to make a Connection Request notification to the CPE. In the form:

http://host:port/path The host portion of the URL MAY be the IP address for the management interface of the CPE in lieu of a host name.

Note: If the host portion of the URL is a literal IPv6 address then it MUST be enclosed in square brackets (see [Section 3.2.2/RFC3986]).

This parameter MUST always be included in Inform messages.

Active Notification MUST by default be enabled for this parameter.

Password used to authenticate an ACS making a Connection Request to the CPE.

When read, this parameter returns an empty string, regardless of the actual value.

Address and port to which an ACS MAY send a UDP Connection Request to the CPE (see [Annex G/TR-069a2]). This parameter is represented in the form of an Authority element as defined in [RFC3986]. The value MUST be in one of the following two forms:

host:port

host

• When STUNEnable is true, the host and port portions of this parameter MUST represent the public address and port corresponding to the NAT binding through which the ACS can send UDP Connection Request messages (once this information is learned by the CPE through the use of STUN).
• When STUNEnable is false, the host and port portions of the URL MUST represent the local IP address and port on which the CPE is listening for UDP Connection Request messages. The second form of this parameter MAY be used only if the port value is equal to 80.

Note: If the host portion of the URL is a literal IPv6 address then it MUST be enclosed in square brackets (see [Section 3.2.2/RFC3986]).

The value of the STUN Password to be used in computing the MESSAGE-INTEGRITY attribute to be used in Binding Requests (only if message integrity has been requested by the STUN server).

When read, this parameter returns an empty string, regardless of the actual value.

Indicates whether or not the Alias-Based Addressing Mechanism is supported. A true value indicates that the CPE supports the Alias-Based Addressing Mechanism, as defined in [Section 3.6.1/TR-069a4] and described in [Appendix II/TR-069a4].

This parameter MUST always be included in Inform messages.

Instance identification mode as defined in [Section 3.6.1/TR-069a4]. When AliasBasedAddressing is true, InstanceMode is used by the ACS to control whether the CPE will use Instance Numbers or Instance Aliases in returned Path Names. Enumeration of:

• InstanceNumber
• InstanceAlias This parameter is REQUIRED for any CPE supporting Alias-Based Addressing.

The factory default value MUST be InstanceNumber.

Enable or disable the Auto-Create Instance Mechanism. When AliasBasedAddressing is true, AutoCreateInstances indicates whether or not the CPE will automatically create instances while processing a SetParameterValues RPC (as defined in [A.3.2.1/TR-069a4]). *A true value indicates that the CPE will perform auto-creation of instances when the Alias-Based Addressing Mechanism is used in SetParameterValues RPC. *A false value indicates that the CPE will not create new object instances. Instead, it will reject the setting of parameters in unrecognized instances and respond with a fault code. This parameter is REQUIRED for any CPE supporting Alias-Based Addressing.

The factory default value MUST be false.

Organizationally unique identifier of the Device manufacturer as provided to the Gateway by the Device. Represented as a six hexadecimal-digit value using all upper-case letters and including any leading zeros. Possible patterns:

• [0-9A-F]{6} The value MUST be a valid OUI as defined in [OUI].

Active Notification requests for this parameter MAY be denied.

Serial number of the Device as provided to the Gateway by the Device.

Active Notification requests for this parameter MAY be denied.

Identifier of the class of product for which the Device’s serial number applies as provided to the Gateway by the Device. If the Device does not provide a Product Class, then this parameter MUST be an empty string.

Active Notification requests for this parameter MAY be denied.

Indicates the transfer types that MUST be included when the CPE notifies the ACS of AUTONOMOUS TRANSFER COMPLETE events. Transfer types not indicated by this filter MUST NOT be included when the CPE notifies the ACS. Enumeration of:

• Upload
• Download
• Both (Upload and Download) Note that this includes any backup or restore operations that were not specifically requested by the ACS. A backup is regarded as an Upload and a restore is regarded as a Download.

Indicates the transfer results that MUST be included when the CPE notifies the ACS of AUTONOMOUS TRANSFER COMPLETE events. Transfer results omitted from this list MUST NOT be included when the CPE notifies the ACS. Note that this includes any backup or restore operations that were not specifically requested by the ACS. A backup is regarded as an Upload and a restore is regarded as a Download.

Enumeration of:

• Success (The autonomous file transfer completed successfully; i.e., the FaultCode was zero)
• Failure (The autonomous file transfer did not complete successfully; i.e., the FaultCode was non-zero)
• Both (Success and Failure)

Comma-separated list (maximum number of characters 1024) of strings. Indicates the file types that MUST be included when the CPE notifies the ACS of AUTONOMOUS TRANSFER COMPLETE events. File types omitted from this list MUST NOT be included when the CPE notifies the ACS.

Each list item matches one of:

• 1 Firmware Upgrade Image (Download Only)
• 2 Web Content (Download Only)
• 3 Vendor Configuration File (Download or Upload)
• 4 Vendor Log File (Upload Only)
• X [0-9A-F]{6} .* (For Vendor-Specific File Types, could be for either Download or Upload) Additionally, the following format is defined to allow the unique definition of vendor-specific file types:
• “X ” is replaced by a 6 hexadecimal-digit OUI (organizationally unique identifier) as defined in [OUI], with all upper-case letters and any leading zeros included. The OUI used for a given vendor-specific file type MUST be one that is assigned to the organization that defined this file type (which is not necessarily the same as the vendor of the CPE or ACS). Note that an empty string indicates that all file types are excluded from this filter, effectively disabling CPE notification of AUTONOMOUS TRANSFER COMPLETE events to the ACS.

The status of the announcement service.

Enumeration of:

• Disabled
• Enabled
• Error (MAY be used by the CPE to indicate a locally defined error condition, OPTIONAL)

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

The Agent MUST choose an initial value that doesn’t conflict with any existing entries.

Active Notification requests for this parameter MAY be denied.

The status of this group table entry.

Enumeration of:

• Disabled
• Enabled
• Error (MAY be used by the CPE to indicate a locally defined error condition, e.g. unable to parse received announcements, OPTIONAL)

The status of the query service.

Enumeration of:

• Disabled
• Enabled
• Error (MAY be used by the CPE to indicate a locally defined error condition, e.g. unable to contact query response server, OPTIONAL)

Comma-separated list of strings. Indicates the Deployment Unit operations that MUST be included when the CPE notifies the ACS of “12 AUTONOMOUS DU STATE CHANGE COMPLETE” events. Operation types not indicated by this list MUST NOT be included when the CPE notifies the ACS. An empty string is essentially the same as setting Enable to false.

Each list item is an enumeration of:

• Install
• Update
• Uninstall

Indicates the Deployment Unit state change results that MUST be included when the CPE notifies the ACS of “12 AUTONOMOUS DU STATE CHANGE COMPLETE” events. State change results omitted from this filter MUST NOT be included when the CPE notifies the ACS.

Enumeration of:

• Success (The autonomous state change completed successfully; i.e., the FaultCode was zero)
• Failure (The autonomous state change did not complete successfully; i.e., the FaultCode was non-zero)
• Both (All result types independent of Success or Failure)

Comma-separated list of strings. Indicates the Deployment Unit state change fault codes that MUST be included when the CPE notifies the ACS of “12 AUTONOMOUS DU STATE CHANGE COMPLETE” events. State change fault codes omitted from this filter MUST NOT be included when the CPE notifies the ACS. This filter has no effect on the notification of a successful autonomous state change. This filter only applies when ResultTypeFilter is set to either Failure or Both. An empty string means that failed autonomous state changes will not be sent to the ACS.

Each list item is an enumeration of:

• 9001
• 9003
• 9012
• 9013
• 9015
• 9016
• 9017
• 9018
• 9022
• 9023
• 9024
• 9025
• 9026
• 9027
• 9028
• 9029
• 9030
• 9031
• 9032

• Isn’t part of a sub-network, within the LAN, with a controller entity.
• Doesn’t need a ControllerID to ensure its ProxiedDeviceID is unique throughout the LAN.

The protocol being used to communicate between the CPE Proxier and this Proxied Device. Enumeration of:

• Z-Wave (see [Z-Wave])
• ZigBee (see [ZigBee])
• UPnP-DM (see [UPnP-DM:1])
• ETSI-M2M (see [ETSIM2MFA]) Vendors can extend the enumerated values with vendor specific extensions, in which case the rules outlined in [Section 3.3/TR-106a6] MUST be adhered to.

Comma-separated list of strings, that represents the discovery protocol(s) for this proxied device. Each list item is an enumeration of:

• Z-Wave (see [Z-Wave])
• ZigBee (see [ZigBee])
• UPnP (see [UPnP-DAv1])
• ETSI-M2M (see [ETSIM2MFA]) Vendors can extend the enumerated values with vendor specific extensions, in which case the rules outlined in [Section 3.3/TR-106a3] MUST be adhered to.

• UPnP.Discovery.RootDevice
• UPnP.Discovery.Device
• UPnP.Discovery.Service For objects discovered by the ETSI-M2M discovery protocol, the DiscoveryProtocolReference would contain items that are references to instances of ETSIM2M.SCL.{i}.AreaNwkDeviceInfoInstance.

Whether or not the CPE Proxier has successfully communicated all pending configuration commands down to the Proxied Device.

Enumeration of:

• Pending
• Retrying
• Success
• Error

Organizationally unique identifier of the associated Proxied Device. Represented as a six hexadecimal-digit value using all upper-case letters and including any leading zeros. Possible patterns:

• [0-9A-F]{6} The value MUST be a valid OUI as defined in [OUI].

The protocol being used to communicate between the CPE Proxier and this Proxied Device. Enumeration of:

• Z-Wave (see [Z-Wave])
• ZigBee (see [ZigBee])
• UPnP-DM (see [UPnP-DM:1])
• ETSI-M2M (see [ETSIM2MFA]) Vendors can extend the enumerated values with vendor specific extensions, in which case the rules outlined in [Section 3.3/TR-106a6] MUST be adhered to.

Comma-separated list of strings, that represents the discovery protocol(s) for this proxied device. Each list item is an enumeration of:

• Z-Wave (see [Z-Wave])
• ZigBee (see [ZigBee])
• UPnP (see [UPnP-DAv1])
• ETSI-M2M (see [ETSIM2MFA]) Vendors can extend the enumerated values with vendor specific extensions, in which case the rules outlined in [Section 3.3/TR-106a3] MUST be adhered to.

• UPnP.Discovery.RootDevice
• UPnP.Discovery.Device
• UPnP.Discovery.Service For objects discovered by the ETSI-M2M discovery protocol, the DiscoveryProtocolReference would contain items that are references to instances of ETSIM2M.SCL.{i}.AreaNwkDeviceInfoInstance.

Organizationally unique identifier of the associated Internet Gateway Device. Possible patterns:

• <Empty> (an empty string)
• [0-9A-F]{6} an empty string indicates that there is no associated Internet Gateway Device that has been detected.

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

Active Notification requests for this parameter MAY be denied.

The current operational state of the optical interface (see [Section 4.2.2/TR-181i2]). Enumeration of:

• Up
• Down
• Unknown
• Dormant
• NotPresent
• LowerLayerDown
• Error (OPTIONAL) When Enable is false then Status SHOULD normally be Down (or NotPresent or Error if there is a fault condition on the interface). When Enable is changed to true then Status SHOULD change to Up if and only if the interface is able to transmit and receive network traffic; it SHOULD change to Dormant if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to Up if still operable when the expected actions have completed); it SHOULD change to LowerLayerDown if and only if the interface is prevented from entering the Up state because one or more of the interfaces beneath it is down; it SHOULD remain in the Error state if there is an error or other fault condition detected on the interface; it SHOULD remain in the NotPresent state if the interface has missing (typically hardware) components; it SHOULD change to Unknown if the state of the interface can not be determined for some reason. This parameter is based on ifOperStatus from [RFC2863].

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

The accumulated time in seconds since the optical interface entered its current operational state.

Active Notification requests for this parameter MAY be denied.

• For an Internet Gateway Device, Upstream will be true for all WAN interfaces and false for all LAN interfaces.
• For a standalone WiFi Access Point that is connected via Ethernet to an Internet Gateway Device, Upstream will be true for the Ethernet interface and false for the WiFi Radio interface.
• For an End Device, Upstream will be true for all interfaces.

The total number of bytes transmitted out of the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of bytes received on the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of packets transmitted out of the interface.

Active Notification requests for this parameter MAY be denied.

The total number of packets received on the interface.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets that could not be transmitted because of errors.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The current operational state of the DSL line (see [Section 4.2.2/TR-181i2]). Enumeration of:

• Up
• Down
• Unknown
• Dormant
• NotPresent
• LowerLayerDown
• Error (OPTIONAL) When Enable is false then Status SHOULD normally be Down (or NotPresent or Error if there is a fault condition on the interface). When Enable is changed to true then Status SHOULD change to Up if and only if the interface is able to transmit and receive network traffic; it SHOULD change to Dormant if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to Up if still operable when the expected actions have completed); it SHOULD change to LowerLayerDown if and only if the interface is prevented from entering the Up state because one or more of the interfaces beneath it is down; it SHOULD remain in the Error state if there is an error or other fault condition detected on the interface; it SHOULD remain in the NotPresent state if the interface has missing (typically hardware) components; it SHOULD change to Unknown if the state of the interface can not be determined for some reason. This parameter is based on ifOperStatus from [RFC2863].

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

Active Notification requests for this parameter MAY be denied.

The accumulated time in seconds since the DSL line entered its current operational state.

Active Notification requests for this parameter MAY be denied.

• For an Internet Gateway Device, Upstream will be true for all WAN interfaces and false for all LAN interfaces.
• For a standalone WiFi Access Point that is connected via Ethernet to an Internet Gateway Device, Upstream will be true for the Ethernet interface and false for the WiFi Radio interface.
• For an End Device, Upstream will be true for all interfaces.

Status of the DSL physical link. Enumeration of:

• Up
• Initializing
• EstablishingLink
• NoSignal
• Disabled
• Error (OPTIONAL) When LinkStatus is Up, Status is expected to be Up. When LinkStatus is Initializing or EstablishingLink or NoSignal or Disabled, Status is expected to be Down. The Error value MAY be used by the CPE to indicate a locally defined error condition.

Comma-separated list of strings. List items indicate which DSL standards and recommendations are supported by the Line instance. Each list item is an enumeration of:

• G.992.1_Annex_A
• G.992.1_Annex_B
• G.992.1_Annex_C
• T1.413
• T1.413i2
• ETSI_101_388
• G.992.2
• G.992.3_Annex_A
• G.992.3_Annex_B
• G.992.3_Annex_C
• G.992.3_Annex_I
• G.992.3_Annex_J
• G.992.3_Annex_L
• G.992.3_Annex_M
• G.992.4
• G.992.5_Annex_A
• G.992.5_Annex_B
• G.992.5_Annex_C
• G.992.5_Annex_I
• G.992.5_Annex_J
• G.992.5_Annex_M
• G.993.1
• G.993.1_Annex_A
• G.993.2_Annex_A
• G.993.2_Annex_B
• G.993.2_Annex_C Note: In G.997.1, this parameter is called “xDSL Transmission system capabilities”. See ITU-T Recommendation [G.997.1].

The line encoding method used in establishing the Layer 1 DSL connection between the CPE and the DSLAM. Enumeration of:

• DMT
• CAP
• 2B1Q
• 43BT
• PAM
• QAM Note: Generally speaking, this variable does not change after provisioning.

Comma-separated list of strings. List items indicate which VDSL2 profiles are allowed on the line. Each list item is an enumeration of:

• 8a
• 8b
• 8c
• 8d
• 12a
• 12b
• 17a
• 17b
• 30a Note: In G.997.1, this parameter is called PROFILES. See ITU-T Recommendation [G.997.1]. Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be an empty string.

The power management state of the line. Enumeration of:

• L0
• L1
• L2
• L3
• L4 Note: See ITU-T Recommendation [G.997.1].

• 0: Successful
• 1: Configuration error. This error occurs with inconsistencies in configuration parameters, e.g. when the line is initialized in an xDSL Transmission system where an xTU does not support the configured Maximum Delay or the configured Minimum or Maximum Data Rate for one or more bearer channels.
• 2: Configuration not feasible on the line. This error occurs if the Minimum Data Rate cannot be reached on the line with the Minimum Noise Margin, Maximum PSD level, Maximum Delay and Maximum Bit Error Ratio for one or more bearer channels.
• 3: Communication problem. This error occurs, for example, due to corrupted messages or bad syntax messages or if no common mode can be selected in the G.994.1 handshaking procedure or due to a timeout.
• 4: No peer xTU detected. This error occurs if the peer xTU is not powered or not connected or if the line is too long to allow detection of a peer xTU.
• 5: Any other or unknown Initialization Failure cause. Note: In G.997.1, this parameter is called “Initialization success/failure cause”. See ITU-T Recommendation [G.997.1].

The current maximum attainable data rate upstream (expressed in Kbps). Note: This parameter is related to the G.997.1 parameter ATTNDRus, which is measured in bits/s. See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

The current maximum attainable data rate downstream (expressed in Kbps). Note: This parameter is related to the G.997.1 parameter ATTNDRds, which is measured in bits/s. See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

The current signal-to-noise ratio margin (expressed in 0.1dB) in the upstream direction. Note: In G.997.1, this parameter is called SNRMus. See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

The current signal-to-noise ratio margin (expressed in 0.1dB) in the downstream direction. Note: In G.997.1, this parameter is called SNRMds. See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

The current upstream signal loss (expressed in 0.1dB).

Active Notification requests for this parameter MAY be denied.

The current downstream signal loss (expressed in 0.1dB).

Active Notification requests for this parameter MAY be denied.

The current output power at the CPE’s DSL line (expressed in 0.1dBmV).

Active Notification requests for this parameter MAY be denied.

The current received power at the CPE’s DSL line (expressed in 0.1dBmV).

Active Notification requests for this parameter MAY be denied.

The total number of bytes transmitted out of the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of bytes received on the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of packets transmitted out of the interface.

Active Notification requests for this parameter MAY be denied.

The total number of packets received on the interface.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets that could not be transmitted because of errors.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of Total statistics. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: TotalStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the most recent DSL Showtime - the beginning of the period used for collection of Showtime statistics. Showtime is defined as successful completion of the DSL link establishment process. The Showtime statistics are those collected since the most recent establishment of the DSL link. Note: ShowtimeStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the second most recent DSL Showtime-the beginning of the period used for collection of LastShowtime statistics. If the CPE has not retained information about the second most recent Showtime (e.g., on reboot), the start of LastShowtime statistics MAY temporarily coincide with the start of Showtime statistics. Note: LastShowtimeStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of CurrentDay statistics. The CPE MAY align the beginning of each CurrentDay interval with days in the UTC time zone, but is not required to do so. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: CurrentDayStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of QuarterHour statistics. The CPE MAY align the beginning of each QuarterHour interval with real-time quarter-hour intervals, but is not required to do so. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: QuarterHourStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

Total number of errored seconds (ES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Total number of severely errored seconds (SES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of errored seconds since the most recent DSL Showtime (ES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of severely errored seconds since the most recent DSL Showtime (SES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of errored seconds since the second most recent DSL Showtime (ES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of severely errored seconds since the second most recent DSL Showtime (SES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of errored seconds since the second most recent DSL Showtime (ES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of severely errored seconds since the second most recent DSL Showtime (SES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of errored seconds since the second most recent DSL Showtime (ES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of severely errored seconds since the second most recent DSL Showtime (SES-L as defined in ITU-T Rec. [G.997.1]). Note: This parameter is OPTIONAL at the G and S/T interfaces in G.997.1 Amendment 1. If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for HLOGpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the upstream direction for HLOGpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2559) of strings. Indicates the downstream logarithmic line characteristics per sub-carrier group. The maximum number of elements is 256 for G.992.3, and 512 for G.992.5. For G.993.2, the number of elements will depend on the value of HLOGGds but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: HLOGpsds is measured during initialization and is not updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2559) of strings. Indicates the upstream logarithmic line characteristics per sub-carrier group. The maximum number of elements is 64 for G.992.3 and G.992.5. For G.993.2, the number of elements will depend on the value of HLOGGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: HLOGpsus is measured during initialization and is not updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which HLOGpsds was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which HLOGpsus was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for QLNpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the upstream direction for QLNpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2047) of integers. Indicates the downstream quiet line noise per subcarrier group. The maximum number of elements is 256 for G.992.3 and G.992.5. For G.993.2, the number of elements will depend on the value of QLNGds but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: QLNpsds is measured during initialization and is not updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2047) of strings. Indicates the upstream quiet line noise per subcarrier group. The maximum number of elements is 64 for G.992.3 and G.992.5. For G.993.2, the number of elements will depend on the value of QLNGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: QLNpsus is measured during initialization and is not updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which QLNpsds was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which QLNpsus was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for SNRpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the upstream direction for SNRpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2047) of integers. Indicates the downstream SNR per subcarrier group. The maximum number of elements is 256 for G.992.3, and 512 for G.992.5. For G.993.2, the number of elements will depend on the value of SNRGds but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: SNRpsds is first measured during initialization and is updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2047) of strings. Indicates the upstream SNR per subcarrier group. The maximum number of elements is 64 for G.992.3 and G.992.5. For G.993.2, the number of elements will depend on the value of SNRGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: SNRpsus is first measured during initialization and is updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which SNRpsds was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which SNRpsus was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. Indicates the downstream line attenuation per usable band, as computed during initialization. Number of elements is dependent on the number of downstream bands but will exceed one only for G.993.2. Interpretation of LATNds is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. Indicates the upstream line attenuation per usable band, as computed during initialization. Number of elements is dependent on the number of upstream bands but will exceed one only for G.993.2. Interpretation of LATNus is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. Indicates the downstream signal attenuation per usable band, as computed during the L0 (i.e., Showtime) state. Number of elements is dependent on the number of downstream bands but will exceed one only for G.993.2. Interpretation of SATNds is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. Indicates the upstream signal attenuation per usable band, as computed during the L0 (i.e., Showtime) state. Number of elements is dependent on the number of downstream bands but will exceed one only for G.993.2. Interpretation of SATNus is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

The current operational state of the channel (see [Section 4.2.2/TR-181i2]). Enumeration of:

• Up
• Down
• Unknown
• Dormant
• NotPresent
• LowerLayerDown
• Error (OPTIONAL) When Enable is false then Status SHOULD normally be Down (or NotPresent or Error if there is a fault condition on the interface). When Enable is changed to true then Status SHOULD change to Up if and only if the interface is able to transmit and receive network traffic; it SHOULD change to Dormant if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to Up if still operable when the expected actions have completed); it SHOULD change to LowerLayerDown if and only if the interface is prevented from entering the Up state because one or more of the interfaces beneath it is down; it SHOULD remain in the Error state if there is an error or other fault condition detected on the interface; it SHOULD remain in the NotPresent state if the interface has missing (typically hardware) components; it SHOULD change to Unknown if the state of the interface can not be determined for some reason. This parameter is based on ifOperStatus from [RFC2863].

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

Active Notification requests for this parameter MAY be denied.

The accumulated time in seconds since the channel entered its current operational state.

Active Notification requests for this parameter MAY be denied.

Comma-separated list of strings. List items indicate which link encapsulation standards and recommendations are supported by the Channel instance.

Each list item is an enumeration of:

• G.992.3_Annex_K_ATM
• G.992.3_Annex_K_PTM
• G.993.2_Annex_K_ATM
• G.993.2_Annex_K_PTM
• G.994.1 (Auto)

Indicates the link encapsulation standard that the Channel instance is using for the connection. Enumeration of:

• G.992.3_Annex_K_ATM
• G.992.3_Annex_K_PTM
• G.993.2_Annex_K_ATM
• G.993.2_Annex_K_PTM When ATM encapsulation is identified then an upper-layer ATM.Link interface MUST be used. When PTM encapsulation is identified then an upper-layer PTM.Link interface MUST be used.

The current physical layer aggregate data rate (expressed in Kbps) of the upstream DSL connection. Note: If the parameter is implemented but no value is available, it MUST have the value 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

The current physical layer aggregate data rate (expressed in Kbps) of the downstream DSL connection. Note: If the parameter is implemented but no value is available, it MUST have the value 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

The total number of bytes transmitted out of the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of bytes received on the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of packets transmitted out of the interface.

Active Notification requests for this parameter MAY be denied.

The total number of packets received on the interface.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets that could not be transmitted because of errors.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of Total statistics. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: TotalStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the most recent DSL Showtime - the beginning of the period used for collection of Showtime statistics. Showtime is defined as successful completion of the DSL link establishment process. The Showtime statistics are those collected since the most recent establishment of the DSL link. Note: ShowtimeStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the second most recent DSL Showtime-the beginning of the period used for collection of LastShowtime statistics. If the CPE has not retained information about the second most recent Showtime (e.g., on reboot), the start of LastShowtime statistics MAY temporarily coincide with the start of Showtime statistics. Note: LastShowtimeStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of CurrentDay statistics. The CPE MAY align the beginning of each CurrentDay interval with days in the UTC time zone, but is not required to do so. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: CurrentDayStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of QuarterHour statistics. The CPE MAY align the beginning of each QuarterHour interval with real-time quarter-hour intervals, but is not required to do so. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: QuarterHourStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

Total number of FEC errors detected (FEC-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Total number of FEC errors detected by the ATU-C (FEC-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Total number of HEC errors detected (HEC-P as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Total number of HEC errors detected by the ATU-C (HEC-PFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Total number of CRC errors detected (CV-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Total number of CRC errors detected by the ATU-C (CV-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected since the most recent DSL Showtime (FEC-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected by the ATU-C since the most recent DSL Showtime (FEC-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected since the most recent DSL Showtime (HEC-P as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected by the ATU-C since the most recent DSL Showtime (HEC-PFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected since the most recent DSL Showtime (CV-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected by the ATU-C since the most recent DSL Showtime (CV-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected since the second most recent DSL Showtime (FEC-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected by the ATU-C since the second most recent DSL Showtime (FEC-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected since the second most recent DSL Showtime (HEC-P as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected by the ATU-C since the second most recent DSL Showtime (HEC-PFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected since the second most recent DSL Showtime (CV-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected by the ATU-C since the second most recent DSL Showtime (CV-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected since the second most recent DSL Showtime (FEC-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected by the ATU-C since the second most recent DSL Showtime (FEC-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected since the second most recent DSL Showtime (HEC-P as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected by the ATU-C since the second most recent DSL Showtime (HEC-PFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected since the second most recent DSL Showtime (CV-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected by the ATU-C since the second most recent DSL Showtime (CV-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected since the second most recent DSL Showtime (FEC-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of FEC errors detected by the ATU-C since the second most recent DSL Showtime (FEC-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected since the second most recent DSL Showtime (HEC-P as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of HEC errors detected by the ATU-C since the second most recent DSL Showtime (HEC-PFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected since the second most recent DSL Showtime (CV-C as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

Number of CRC errors detected by the ATU-C since the second most recent DSL Showtime (CV-CFE as defined in ITU-T Rec. [G.997.1]). Note: If the parameter is implemented but no value is available, its value MUST be 4294967295 (the maximum for its data type).

Active Notification requests for this parameter MAY be denied.

The current operational state of the bonding group (see [Section 4.2.2/TR-181i2]). Enumeration of:

• Up
• Down
• Unknown
• Dormant
• NotPresent
• LowerLayerDown
• Error (OPTIONAL) When Enable is false then Status SHOULD normally be Down (or NotPresent or Error if there is a fault condition on the interface). When Enable is changed to true then Status SHOULD change to Up if and only if the interface is able to transmit and receive network traffic; it SHOULD change to Dormant if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to Up if still operable when the expected actions have completed); it SHOULD change to LowerLayerDown if and only if the interface is prevented from entering the Up state because one or more of the interfaces beneath it is down; it SHOULD remain in the Error state if there is an error or other fault condition detected on the interface; it SHOULD remain in the NotPresent state if the interface has missing (typically hardware) components; it SHOULD change to Unknown if the state of the interface can not be determined for some reason. This parameter is based on ifOperStatus from [RFC2863].

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

Active Notification requests for this parameter MAY be denied.

The accumulated time in seconds since the bonding group entered its current operational state.

Active Notification requests for this parameter MAY be denied.

Comma-separated list of strings. Indicates the current fault status of the DSL bonding group. Each list item is an enumeration of:

• NoPeer (Peer physical layer is unreachable)
• PeerPowerLoss (Local device received a “dying gasp” message (preceding a loss-of-power) from the peer device)
• PeerBondSchemeMismatch (Operating bonding scheme of the peer port is different from the local one)
• LowRate (Upstream or downstream data rate is at or below threshold) Corresponds to [TR-159] oBondingGroup.aGroupStatus.

Comma-separated list of strings. Supported DSL bonding schemes. Each list item is an enumeration of:

• ATM ([G.998.1] ATM-based bonding)
• Ethernet ([G.998.2] Ethernet-based bonding)
• TDIM ([G.998.3] TDIM-based bonding) Corresponds to [TR-159] oBondingGroup.aGroupBondSchemesSupported.

The accumulated time in seconds for which this bonding group has been operationally up. Corresponds to [Section 11.4.2/G.998.1] Group Running Time.

Active Notification requests for this parameter MAY be denied.

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

Active Notification requests for this parameter MAY be denied.

The total number of bytes transmitted out of the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of bytes received on the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of packets transmitted out of the interface.

Active Notification requests for this parameter MAY be denied.

The total number of packets received on the interface.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets that could not be transmitted because of errors.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol.

Active Notification requests for this parameter MAY be denied.

The total number of packets requested for transmission which were not addressed to a multicast or broadcast address at this layer, including those that were discarded or not sent.

Active Notification requests for this parameter MAY be denied.

The total number of received packets, delivered by this layer to a higher layer, which were not addressed to a multicast or broadcast address at this layer.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of packets that higher-level protocols requested for transmission and which were addressed to a multicast address at this layer, including those that were discarded or not sent.

Active Notification requests for this parameter MAY be denied.

The total number of received packets, delivered by this layer to a higher layer, which were addressed to a multicast address at this layer.

Active Notification requests for this parameter MAY be denied.

The total number of packets that higher-level protocols requested for transmission and which were addressed to a broadcast address at this layer, including those that were discarded or not sent.

Active Notification requests for this parameter MAY be denied.

The total number of received packets, delivered by this layer to a higher layer, which were addressed to a broadcast address at this layer.

Active Notification requests for this parameter MAY be denied.

The total number of packets received via the interface which were discarded because of an unknown or unsupported protocol.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of Total statistics. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: TotalStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of CurrentDay statistics. The CPE MAY align the beginning of each CurrentDay interval with days in the UTC time zone, but is not required to do so. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: CurrentDayStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

DSL-specific statistic. The Number of seconds since the beginning of the period used for collection of QuarterHour statistics. The CPE MAY align the beginning of each QuarterHour interval with real-time quarter-hour intervals, but is not required to do so. Statistics SHOULD continue to be accumulated across CPE reboots, though this might not always be possible. Note: QuarterHourStart SHOULD NOT be reset when the interface statistics are reset via an interface disable / enable cycle.

Active Notification requests for this parameter MAY be denied.

Comma-separated list of strings. Indicates the failure conditions that have occurred during the accumulation period. Each list item is an enumeration of:

• LowRate (Minimum data rate not met)
• ExcessiveDelay (Differential delay tolerance exceeded)
• InsufficientBuffers (Insufficient buffers on receiver)
• Other (Other failure occurred) Corresponds to [Section 11.4.3/G.998.1] Current Group Failure Reason.

Comma-separated list of strings. Indicates the failure conditions that have occurred during the accumulation period. Each list item is an enumeration of:

• LowRate (Minimum data rate not met)
• ExcessiveDelay (Differential delay tolerance exceeded)
• InsufficientBuffers (Insufficient buffers on receiver)
• Other (Other failure occurred) Corresponds to [Section 11.4.3/G.998.1] Current Group Failure Reason.

Comma-separated list of strings. Indicates the failure conditions that have occurred during the accumulation period. Each list item is an enumeration of:

• LowRate (Minimum data rate not met)
• ExcessiveDelay (Differential delay tolerance exceeded)
• InsufficientBuffers (Insufficient buffers on receiver)
• Other (Other failure occurred) Corresponds to [Section 11.4.3/G.998.1] Current Group Failure Reason.

Indicates availability of diagnostic data. Enumeration of:

• None (READONLY)
• Requested
• Complete (READONLY)
• Error_Internal (READONLY)
• Error_Other (READONLY) If the ACS sets the value of this parameter to Requested, the CPE MUST initiate the corresponding diagnostic test, which brings down the DSL connection while the test is operating. When writing, the only allowed value is Requested. When requested, the CPE SHOULD wait until after completion of the communication session with the ACS before starting the diagnostic. When the test is completed, the value of this parameter MUST be either Complete (if the test completed successfully), or one of the Error values listed above. If the value of this parameter is anything other than Complete, the values of the results parameters for this test are indeterminate. When the diagnostic initiated by the ACS is completed, the CPE MUST establish a new connection to the ACS to allow the ACS to view the results, indicating the corresponding reason in the Inform message. After the diagnostic is complete, the value of all result parameters (all read-only parameters in this object instance) MUST be retained by the CPE until either this diagnostic is run again, or the CPE reboots. After a reboot, if the CPE has not retained the result parameters from the most recent test, it MUST set the value of this parameter to None.

Downstream actual power spectral density. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Upstream actual power spectral density. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Downstream actual aggregate transmitter power. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Upstream actual aggregate transmitter power. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Downstream linear representation scale. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Scaling used to represent the upstream linear channel characteristics. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for HLINpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for HLINpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for HLOGpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the upstream direction for HLOGpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2559) of strings. List items represent downstream logarithmic channel characteristics per sub-carrier group. The maximum number of elements is 256 for G.992.3, and 512 for G.992.5. For G.993.2, the number of elements will depend on the value of HLOGGds but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: HLOGpsds is measured during initialization and is not updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 2559) of strings. List items represent upstream logarithmic channel characteristics per sub-carrier group. The maximum number of elements is 64 for G.992.3 and G.992.5. For G.993.2, the number of elements will depend on the value of HLOGGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None. Note: HLOGpsus is measured during initialization and is not updated during Showtime.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which HLOGpsds was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which HLOGpsus was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. List items represent downstream line attenuation per usable band, as computed during initialization. Number of elements is dependent on the number of downstream bands but will exceed one only for G.993.2. Interpretation of LATNpbds is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. List items represent upstream line attenuation per usable band, as computed during initialization. Number of elements is dependent on the number of upstream bands but will exceed one only for G.993.2. Interpretation of LATNpbus is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. List items represent downstream signal attenuation per usable band, as computed during the L0 (i.e., Showtime) state. Number of elements is dependent on the number of downstream bands but will exceed one only for G.993.2. Interpretation of SATNds is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 24) of strings. List items represent upstream signal attenuation per usable band, as computed during the L0 (i.e., Showtime) state. Number of elements is dependent on the number of downstream bands but will exceed one only for G.993.2. Interpretation of SATNus is as defined in ITU-T Rec. G.997.1. Note: See ITU-T Recommendation [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of integers. List items represent downstream linear channel characteristics per subcarrier group. Maximum number of complex pairs is 256 for G.992.3, and 512 for G.992.5. For G.993.2, the number of pairs will depend on the value of HLINGds but will not exceed 512. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: HLIN is not applicable in PLOAM for G.992.1 or G.992.2. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of strings. List items represent upstream linear channel characteristics per sub-carrier group. Maximum number of complex pairs is 64 for G.992.3, and G.992.5. For G.993.2, the number of pairs will depend on the value of HLINGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: HLIN is not applicable in PLOAM for G.992.1 or G.992.2. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for QLNpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the upstream direction for QLNpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of integers. List items represent downstream quiet line noise per subcarrier group. Maximum number of elements is 256 for G.992.3, 512 for G.992.5. For G.993.2, the number of elements will depend on the value of QLNGds but will not exceed 512. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: QLN is not applicable in PLOAM for G.992.1 or G.992.2. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of strings. List items represent upstream quiet line noise per subcarrier group. The maximum number of elements is 64 for G.992.3, and G.992.5. For G.993.2, the number of elements will depend on the value of QLNGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: QLN is not applicable in PLOAM for G.992.1 or G.992.2. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which QLNpsds was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which QLNpsus was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the downstream direction for SNRpsds. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Number of sub-carriers per sub-carrier group in the upstream direction for SNRpsus. Valid values are 1, 2, 4, and 8. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 1.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of integers. List items represent downstream SNR per subcarrier group. Maximum number of elements is 256 for G.992.3, 512 for G.992.5. For G.993.2, the number of elements will depend on the value of SNRGds but will not exceed 512. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Interpretation of the value is as defined in ITU-T Rec. G.997.1. Note: SNRps is not applicable in PLOAM for G.992.1 or G.992.2. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of strings. List items represent upstream SNR per subcarrier group. The maximum number of elements is 64 for G.992.3, and G.992.5. For G.993.2, the number of elements will depend on the value of SNRGus but will not exceed 512. Interpretation of the values is as defined in ITU-T Rec. G.997.1. Note: SNRps is not applicable in PLOAM for G.992.1 or G.992.2. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to None.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which SNRpsds was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Indicates the number of symbols over which SNRpsus was measured. Note: See ITU-T Recommendation [G.997.1]. For a multimode device operating in a mode in which this parameter does not apply, the value of this parameter SHOULD be set to 0.

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of integers. List items represent downstream bit allocation per subcarrier group. Maximum number of elements is 256 for G.992.3, 512 for G.992.5. Interpretation of the value is as defined in ITU-T Rec. [G.997.1].

Active Notification requests for this parameter MAY be denied.

Comma-separated list (maximum number of characters 61430) of strings. List items represent upstream bit allocation per subcarrier group. Maximum number of elements is 256 for G.992.3, 512 for G.992.5. Interpretation of the value is as defined in ITU-T Rec. [G.997.1].

Active Notification requests for this parameter MAY be denied.

The current operational state of the link (see [Section 4.2.2/TR-181i2]). Enumeration of:

• Up
• Down
• Unknown
• Dormant
• NotPresent
• LowerLayerDown
• Error (OPTIONAL) When Enable is false then Status SHOULD normally be Down (or NotPresent or Error if there is a fault condition on the interface). When Enable is changed to true then Status SHOULD change to Up if and only if the interface is able to transmit and receive network traffic; it SHOULD change to Dormant if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to Up if still operable when the expected actions have completed); it SHOULD change to LowerLayerDown if and only if the interface is prevented from entering the Up state because one or more of the interfaces beneath it is down; it SHOULD remain in the Error state if there is an error or other fault condition detected on the interface; it SHOULD remain in the NotPresent state if the interface has missing (typically hardware) components; it SHOULD change to Unknown if the state of the interface can not be determined for some reason. This parameter is based on ifOperStatus from [RFC2863].

[Alias] A non-volatile handle used to reference this instance. Alias provides a mechanism for an ACS to label this instance for future reference.

If the CPE supports the Alias-based Addressing feature as defined in [Section 3.6.1/TR-069] and described in [Appendix II/TR-069], the following mandatory constraints MUST be enforced:

• Its value MUST NOT be empty.
• Its value MUST start with a letter.
• If its value is not assigned by the ACS, it MUST start with a “cpe-” prefix.
• The CPE MUST NOT change the parameter value.

The Agent MUST choose an initial value that doesn’t conflict with any existing entries.

Active Notification requests for this parameter MAY be denied.

The textual name of the link as assigned by the CPE.

The Agent MUST choose an initial value that doesn’t conflict with any existing entries.

The accumulated time in seconds since the link entered its current operational state.

Active Notification requests for this parameter MAY be denied.

Indicates the type of connection and refers to the complete stack of protocol used for this connection.

Enumeration of:

• EoA ([RFC2684] bridged Ethernet over ATM)
• IPoA ([RFC2684] routed IP over ATM)
• PPPoA ([RFC2364] PPP over ATM)
• CIP ([RFC2225] Classical IP over ATM)
• Unconfigured

Destination address of this link, in the form “VPI/VCI” (e.g. “8/23” or “0/35”).

Possible patterns:

• \d+/\d+

Identifies the connection encapsulation that will be used.

Enumeration of:

• LLC
• VCMUX

Comma-separated list (maximum number of characters 256) of strings. Ordered list of VPI/VCI pairs to search if a link using the DestinationAddress cannot be established. In the form “VPI1/VCI1, VPI2/VCI2, …”.

Each list item matches one of:

• \d+/\d+ Example:

0/35, 8/35, 1/35

Describes the ATM Adaptation Layer (AAL) currently in use on the PVC.

Enumeration of:

• AAL1
• AAL2
• AAL3
• AAL4
• AAL5

The total number of bytes transmitted out of the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of bytes received on the interface, including framing characters.

Active Notification requests for this parameter MAY be denied.

The total number of packets transmitted out of the interface.

Active Notification requests for this parameter MAY be denied.

The total number of packets received on the interface.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets that could not be transmitted because of errors.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets that contained errors preventing them from being delivered to a higher-layer protocol.

Active Notification requests for this parameter MAY be denied.

The total number of packets requested for transmission which were not addressed to a multicast or broadcast address at this layer, including those that were discarded or not sent.

Active Notification requests for this parameter MAY be denied.

The total number of received packets, delivered by this layer to a higher layer, which were not addressed to a multicast or broadcast address at this layer.

Active Notification requests for this parameter MAY be denied.

The total number of outbound packets which were chosen to be discarded even though no errors had been detected to prevent their being transmitted. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of inbound packets which were chosen to be discarded even though no errors had been detected to prevent their being delivered. One possible reason for discarding such a packet could be to free up buffer space.

Active Notification requests for this parameter MAY be denied.

The total number of packets that higher-level protocols requested for transmission and which were addressed to a multicast address at this layer, including those that were discarded or not sent.

Active Notification requests for this parameter MAY be denied.

The total number of received packets, delivered by this layer to a higher layer, which were addressed to a multicast address at this layer.

Active Notification requests for this parameter MAY be denied.

The total number of packets that higher-level protocols requested for transmission and which were addressed to a broadcast address at this layer, including those that were discarded or not sent.

Active Notification requests for this parameter MAY be denied.

The total number of received packets, delivered by this layer to a higher layer, which were addressed to a broadcast address at this layer.

Active Notification requests for this parameter MAY be denied.

The total number of packets received via the interface which were discarded because of an unknown or unsupported protocol.

Active Notification requests for this parameter MAY be denied.

The current count of successfully transmitted cells.

Active Notification requests for this parameter MAY be denied.

The current count of successfully received cells.

Active Notification requests for this parameter MAY be denied.

Count of the ATM layer cyclic redundancy check (CRC) errors. This refers to CRC errors at the ATM adaptation layer (AAL). The AAL in use is indicated by the AAL parameter. The value of the CRCErrors parameter MUST be 0 for AAL types that have no CRCs.

Active Notification requests for this parameter MAY be denied.

Count of the number of Header Error Check related errors at the ATM layer.

Active Notification requests for this parameter MAY be denied.

Describes the ATM Quality Of Service (QoS) being used on the VC.

Enumeration of:

• UBR
• CBR
• GFR
• VBR-nrt
• VBR-rt
• UBR+
• ABR

Indicates availability of diagnostic data. Enumeration of:

• None (READONLY)
• Requested
• Complete (READONLY)
• Error_Internal (READONLY)
• Error_Other (READONLY) If the ACS sets the value of this parameter to Requested, the CPE MUST initiate the corresponding diagnostic test. When writing, the only allowed value is Requested. To ensure the use of the proper test parameters (the writable parameters in this object), the test parameters MUST be set either prior to or at the same time as (in the same SetParameterValues) setting the DiagnosticsState to Requested. When requested, the CPE SHOULD wait until after completion of the communication session with the ACS before starting the diagnostic. When the test is completed, the value of this parameter MUST be either Complete (if the test completed successfully), or one of the Error values listed above. If the value of this parameter is anything other than Complete, the values of the results parameters for this test are indeterminate. When the diagnostic initiated by the ACS is completed (successfully or not), the CPE MUST establish a new connection to the ACS to allow the ACS to view the results, indicating the Event code 8 DIAGNOSTICS COMPLETE in the Inform message. After the diagnostic is complete, the value of all result parameters (all read-only parameters in this object instance) MUST be retained by the CPE until either this diagnostic is run again, or the CPE reboots. After a reboot, if the CPE has not retained the result parameters from the most recent test, it MUST set the value of this parameter to None. Modifying any of the writable parameters in this object except for this one MUST result in the value of this parameter being set to None. While the test is in progress, modifying any of the writable parameters in this object except for this one MUST result in the test being terminated and the value of this parameter being set to None. While the test is in progress, setting this parameter to Requested (and possibly modifying other writable parameters in this object) MUST result in the test being terminated and then restarted using the current values of the test parameters.

Active Notification requests for this parameter MAY be denied.

Result parameter indicating the number of successful pings (those in which a successful response was received prior to the timeout) in the most recent ping test.

Active Notification requests for this parameter MAY be denied.

Result parameter indicating the number of failed pings in the most recent ping test.

Active Notification requests for this parameter MAY be denied.

Result parameter indicating the average response time in milliseconds over all repetitions with successful responses of the most recent ping test. If there were no successful responses, this value MUST be zero.

Active Notification requests for this parameter MAY be denied.

Result parameter indicating the minimum response time in milliseconds over all repetitions with successful responses of the most recent ping test. If there were no successful responses, this value MUST be zero.

Active Notification requests for this parameter MAY be denied.

Result parameter indicating the maximum response time in milliseconds over all repetitions with successful responses of the most recent ping test. If there were no successful responses, this value MUST be zero.

Active Notification requests for this parameter MAY be denied.

The current operational state of the link (see [Section 4.2.2/TR-181i2]). Enumeration of:

• Up
• Down
• Unknown
• Dormant
• NotPresent
• LowerLayerDown
• Error (OPTIONAL) When Enable is false then Status SHOULD normally be Down (or NotPresent or Error if there is a fault condition on the interface). When Enable is changed to true then Status SHOULD change to Up if and only if the interface is able to transmit and receive network traffic; it SHOULD change to Dormant if and only if the interface is operable but is waiting for external actions before it can transmit and receive network traffic (and subsequently change to Up if still operable when the expected actions have completed); it SHOULD change to LowerLayerDown if and only if the interface is prevented from entering the Up state because one or more of the interfaces beneath it is down; it SHOULD remain in the Error state if there is an error or other fault condition detected on the interface; it SHOULD remain in the NotPresent state if the interface has missing (typically hardware) components; it SHOULD change to Unknown if the state of the interface can not be determined for some reason. This parameter is based on ifOperStatus from [RFC2863].