Pair of 32-bit signed integers a(i),b(i) with each pair representing a
complex component of the uncalibrated echo response (UER);
# Real UER component, a(i)
# Imaginary UER component, b(i)
for values of i starting at i=0. Both values are represented as signed
integers.
The interpretation of the UER value is as defined in
{{bibref|G.996.2|Clause A.2.2.1}}.
# the Power Spectral Density (PSD) breakpoint sub-carrier index in the
range [0:49152] with Df = 4.3125 kHz frequency spacing, and
# the value of the level of the PSD at this sub-carrier expressed in
''0.1 dBm/Hz'' with an offset of -200 dBm/Hz. The range of valid values
for PSD is -30 to -200 dBm/Hz.
Both values are represented as unsignedInt.
# The paired frequency spacing index in the range [0:8191], and
# The transfer function log value, i.e. [i, TFlog(i *
{{param|TFlogGroupSize}} * Df)], where the reference frequency spacing
Df = 4.3125 kHz, the index i valid range is 0 to 8191, and TFlog(i *
{{param|TFlogGroupSize}} * Df) spans a range from +6.0 dB down to -96.2
dB with units of 0.1 dB.
Both values are represented as unsignedInt.
{{reference}} This is the interface over which the test is to be
performed.
Downstream actual power spectral density. Interpretation of the value
is as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Upstream actual power spectral density. Interpretation of the value is
as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Downstream actual aggregate transmitter power. Interpretation of the
value is as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Upstream actual aggregate transmitter power. Interpretation of the
value is as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Downstream linear representation scale. Interpretation of the value is
as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|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.
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 {{bibref|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.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|HLINpsds}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|HLINpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|HLOGpsds}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the upstream direction
for {{param|HLOGpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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 {{param|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 {{bibref|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: {{param}} is measured during initialization and is not updated
during Showtime.
{{list}} 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 {{param|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 {{bibref|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: {{param}} is measured during initialization and is not updated
during Showtime.
Indicates the number of symbols over which {{param|HLOGpsds}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Indicates the number of symbols over which {{param|HLOGpsus}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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 {{param}} is as defined in ITU-T Rec.
G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} 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 {{param}} is as defined in ITU-T Rec.
G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} 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 {{param}} is as defined in
ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} 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 {{param}} is as defined in
ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} 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 {{param|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 {{bibref|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''.
{{list}} 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 {{param|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 {{bibref|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''.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|QLNpsds}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the upstream direction
for {{param|QLNpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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 {{param|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 {{bibref|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''.
{{list}} 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
{{param|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 {{bibref|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''.
Indicates the number of symbols over which {{param|QLNpsds}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Indicates the number of symbols over which {{param|QLNpsus}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|SNRpsds}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the upstream direction
for {{param|SNRpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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
{{param|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 {{bibref|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''.
{{list}} 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 {{param|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 {{bibref|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''.
Indicates the number of symbols over which {{param|SNRpsds}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Indicates the number of symbols over which {{param|SNRpsus}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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.
{{bibref|G.997.1}}.
{{list}} 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.
{{bibref|G.997.1}}.
{{reference}} This is the interface over which the test is to be
performed.
This parameter is the SELT UER maximum measurement duration (MMD)
measured in {{units}}.
This parameter is defined as SELT_UER_MMD_R in ITU-T Recommendation
{{bibref|G.996.2|Clause A.2.1.1}}.
This parameter indicates if the option for extended bandwidth SELT is
applied ({{true}}) or not applied ({{false}}).
If the option for extended bandwidth SELT is applied to UER, then
{{param|UERGroupSize}} has three valid values: 1, 2 and 12.
If the option for extended bandwidth SELT is not applied to UER, then
{{param|UERGroupSize}} has two valid values: 1 and 2.
{{param|UERGroupSize}} is reported if the option for extended bandwidth
UER SELT is supported; otherwise, reporting of the group size is
optional.
The Uncalibrated Echo Response (UER) [a(0),b(0)], [a(1),b(1)], ...
{{list|with each list item consisting of the following}}
{{datatype|expand}}
The value of UER at frequency i*{{param|UERGroupSize}}*Df =
({{param|UERScaleFactor}}/(2^31))*(a(i)+j*b(i))/(2^31) where Df =
4.3125 kHz.
This parameter is defined as CPE SELT uncalibrated echo response
(SELT-UER-R) in ITU-T Recommendation {{bibref|G.996.2|Clause A.2.2.1}}.
The Uncalibrated Echo Response (UER) scale factor.
This parameter is defined as part of the CPE SELT uncalibrated echo
response (SELT-UER-R) in ITU-T Recommendation {{bibref|G.996.2|Clause
A.2.2.1}}.
Note that the scale factor is chosen such that max(abs(a(i)),
abs(b(i))) over all i is equal to 2^31 - 1, which doesn't allow
{{param}} to be zero.
The Uncalibrated Echo Response (UER) group size, UER_G. In units of
{{units}}.
This parameter is defined as part of the CPE SELT uncalibrated echo
response (SELT-UER-R) in ITU-T Recommendation {{bibref|G.996.2|Clause
A.2.2.2}}.
This parameter represents the variance of the {{param|UER}}. List items
represent v(i), for values of i starting at i=0. The variance of the
uncalibrated echo response for frequency i*{{param|UERGroupSize}}*Df is
VAR(i*{{param|UERGroupSize}}*Df) = 3 - v(i)/2 dB where Df = 4.3125 kHz.
This parameter is defined as SELT variance of uncalibrated echo
response R (SELT UER-VAR-R) in {{bibref|G.996.2|Clause A.2.2.2}}.
{{reference}} This is the interface over which the test is to be
performed.
This parameter is the SELT QLN maximum measurement duration (MMD)
measured in {{units}}.
This parameter is defined as SELT_QLN_MMD_R in ITU-T Recommendation
{{bibref|G.996.2|Clause A.2.1.2}}.
This parameter indicates if the option for extended bandwidth SELT is
applied ({{true}}) or not applied ({{false}}).
If the option for extended bandwidth SELT is applied to QLN, then
{{param|QLNGroupSize}} has three valid values: 1, 2 and 12.
If the option for extended bandwidth SELT is not applied to QLN, then
{{param|QLNGroupSize}} has two valid values: 1 and 2.
{{param|QLNGroupSize}} is reported if the option for extended bandwidth
QLN SELT is supported; otherwise, reporting of the group size is
optional.
{{list}} List items represent SELT quiet line noise (QLN) per
subcarrier group.
Each list element is n(i), with i starting at 0. The value of QLN at
frequency i*{{param|QLNGroupSize}}*Df with Df=4.3125 kHz is defined as
QLN(i*{{param|QLNGroupSize}}*Df) = -23 - (n(i)/2) dBm/Hz. This data
format supports a QLN granularity of 0.5 dB and an dynamic range of
-150 to -23 dBm/Hz.
Interpretation of the SELT_QLN_R value is defined in
{{bibref|G.996.2|Clause A.2.2.3}}.
This parameter represents the Quiet Line Noise (QLN) group size. In
units of {{units}}.
This parameter is defined as part of the SELT_QLN_R in ITU-T
Recommendation {{bibref|G.996.2|Clause A.2.2.4}}.
{{reference}} This is the interface over which the test is to be
performed.
Capacity estimate calculation enabling: This parameter is expressed as
a boolean and takes the value {{false}} if xDSL performance estimation
is not required, {{true}} otherwise.
The capacity estimate calculation enabling parameter is defined in
{{bibref|G.996.2|Clause B.2.1.1}}.
The capacity estimate signal Power Spectral Density (PSD):
{{list|with each list item consisting of the following}}
{{datatype|expand}}
This capacity estimate signal PSD parameter is defined in ITU-T
Recommendation {{bibref|G.996.2|Clause B.2.1.2}}.
The capacity estimate noise Power Spectral Density (PSD):
{{list|with each list item consisting of the following}}
{{datatype|expand}}
This capacity estimate noise PSD parameter is defined in ITU-T
Recommendation {{bibref|G.996.2|Clause B.2.1.3}}.
The capacity estimate target noise margin. The range of valid values is
0 to 31 dB, in steps of {{units}}.
This capacity estimate target noise margin parameter is defined in
ITU-T Recommendation {{bibref|G.996.2|Clause B.2.1.4}}.
Loop termination indicator. {{enum}}
This parameter is defined as LOOP-TERM in ITU-T Recommendation
{{bibref|G.996.2|Clause B.1.1.1}}.
{{obsoleted|2.14|because it's been removed from the ITU-T
Recommendation}}
{{deleted|2.16}}
This parameter is the loop length with units of {{units}}.
This parameter is defined as the loop length parameter LOOP_LEN in
ITU-T Recommendation {{bibref|G.996.2|Clause B.1.1.2}}.
{{list}} List items represent paired parameters [LOOP_SEG_LEN,
LOOP_SEG_BTAP] representing a concatenation of loop segment types,
where LOOP_SEG_LEN represents the length of the segment in meters; and
LOOP_SEG_BTAP is a string that identifies the segment type as either
"in series" or "bridged tap".
The first loop segment in the list shall be the segment connected to
the SELT-PMD block, subsequent loop segments in the list shall describe
the loop in the direction toward the far-end loop termination.
This Loop Topology parameter is defined in ITU-T Recommendation
{{bibref|G.996.2|Clause B.1.1.3}}.
Specifies the list of attenuation characteristics.
{{list|with each list item consisting of the following}}
{{datatype|expand}}
TFlog(i * {{param|TFlogGroupSize}} * Df) is represented by an integer
k, 0 <= k <= 1022, where TFlog(i * {{param|TFlogGroupSize}} * Df)
= 6.0 - k * 0.1. The special value of k of 1023 is used to indicate
that no measurement could be done for this subcarrier because the
attenuation is out of the range that can be represented.
The attenuation characteristics TFlog(f) parameter is defined in ITU-T
Recommendation {{bibref|G.996.2|Clause B.1.1.6}}.
This parameter represents the Transfer Function Log (TFlog) group size.
In units of {{units}}.
This parameter is defined as part of the SELT attenuation
characteristics, {{param|AttenuationCharacteristics}}, defined in ITU-T
Recommendation {{bibref|G.996.2|Clause B.1.1.6}}.
Missing micro-filter or splitter: This parameter is a binary indication
of a missing or incorrectly installed splitter or micro-filter at the
U-R reference point. A value of true represents a missing splitter.
The missing micro-filter or splitter parameter is defined in
{{bibref|G.996.2|Clause B.1.1.4}}.
Capacity Estimate: {{list}} This parameter represents the downstream
and/or upstream capacity estimates in {{units}}.
If only one value is supplied, then it's not specified whether it's the
downstream value, the upstream value or some combination of the two. If
two values are supplied, then the first is the downstream value and the
second is the upstream value.
The capacity estimate parameters are defined in {{bibref|G.996.2|Clause
B.1.1.7}}.
This object models DSL lines, DSL channels, DSL bonding, and DSL
diagnostics. The specific interface objects defined here are
{{object|Line}}, {{object|Channel}}, and {{object|BondingGroup}}. Each
{{object|Line}} models a layer 1 DSL Line interface, and each
{{object|Channel}} models a layer 1 DSL Channel interface where
multiple channels can run over a DSL line. In the case where bonding is
configured, it is expected that {{object|BondingGroup}} is stacked
above the {{object|Channel}} instances within its group.
{{numentries}}
{{numentries}}
{{numentries}}
DSL Line table (a stackable interface object as described in
{{bibref|TR-181i2|Section 4.2}}).
This table models physical DSL lines.
Enables or disables the DSL line.
This parameter is based on ''ifAdminStatus'' from {{bibref|RFC2863}}.
Enables or disables data gathering on the DSL line.
The current operational state of the DSL line (see
{{bibref|TR-181i2|Section 4.2.2}}). {{enum}}
When {{param|Enable}} is {{false}} then {{param}} SHOULD normally be
{{enum|Down}} (or {{enum|NotPresent}} or {{enum|Error}} if there is a
fault condition on the interface).
When {{param|Enable}} is changed to {{true}} then {{param}} SHOULD
change to {{enum|Up}} if and only if the interface is able to
transmit and receive network traffic; it SHOULD change to
{{enum|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 {{enum|Up}} if still
operable when the expected actions have completed); it SHOULD change
to {{enum|LowerLayerDown}} if and only if the interface is prevented
from entering the {{enum|Up}} state because one or more of the
interfaces beneath it is down; it SHOULD remain in the {{enum|Error}}
state if there is an error or other fault condition detected on the
interface; it SHOULD remain in the {{enum|NotPresent}} state if the
interface has missing (typically hardware) components; it SHOULD
change to {{enum|Unknown}} if the state of the interface can not be
determined for some reason.
This parameter is based on ''ifOperStatus'' from {{bibref|RFC2863}}.
{{datatype|expand}}
The textual name of the DSL line as assigned by the CPE.
The accumulated time in {{units}} since the DSL line entered its
current operational state.
{{list}} {{reference|an interface object that is stacked immediately
below this interface object}} See {{bibref|TR-181i2|Section 4.2.1}}.
Note: Since {{object}} is a layer 1 interface, it is expected that
{{param}} will not be used.
Indicates whether the interface points towards the Internet
({{true}}) or towards End Devices ({{false}}).
For example:
* For an Internet Gateway Device, {{param}} 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, {{param}} will be {{true}} for the
Ethernet interface and {{false}} for the WiFi Radio interface.
* For an End Device, {{param}} will be {{true}} for all interfaces.
A string identifying the version of the modem firmware currently
installed for this interface. This is applicable only when the modem
firmware is separable from the overall CPE software.
Status of the DSL physical link. {{enum}}
When {{param}} is {{enum|Up}}, {{param|Status}} is expected to be
{{enum|Up|Status}}. When {{param}} is {{enum|Initializing}} or
{{enum|EstablishingLink}} or {{enum|NoSignal}} or {{enum|Disabled}},
{{param|Status}} is expected to be {{enum|Down|Status}}.
The {{enum|Error}} value MAY be used by the CPE to indicate a locally
defined error condition.
{{list}} List items indicate which DSL standards and recommendations
are supported by the {{object}} instance. {{enum}}
Note: In G.997.1, this parameter is called "xDSL Transmission system
capabilities". See ITU-T Recommendation {{bibref|G.997.1}}.
{{deprecated|2.8|because its entries are out-of-date; {{param|XTSE}}
points to a current list. Therefore its value MAY be {{empty}} if
(and only if) {{param|XTSE}} is supported}}
{{obsoleted|2.14}}
{{deleted|2.15}}
This configuration parameter defines the transmission system types to
be allowed by the xTU on this {{object}} instance. Each bit is 0 if
not allowed or 1 if allowed, as defined for the xTU transmission
system enabling (XTSE) in ITU-T G.997.1.
Note: This parameter is defined as xDSL Transmission system enabling
(XTSE) in ITU-T G.997.1. For a full definition, see Clause 7.3.1.1.1
of ITU-T Recommendation {{bibref|G.997.1}}.
Indicates the standard that the {{object}} instance is using for the
connection.
Note: In G.997.1, this parameter is called "xDSL Transmission
system". See ITU-T Recommendation {{bibref|G.997.1}}.
{{deprecated|2.8|because its entries are out-of-date; {{param|XTSE}}
points to a current list. Therefore its value MAY be {{empty}} if
(and only if) {{param|XTSUsed}} is supported.}}
{{obsoleted|2.14}}
{{deleted|2.15}}
This parameter indicates which DSL standard and recommendation are
currently in use by the {{object}} instance. Only one bit is set, as
defined for the xTU transmission system enabling (XTSE) in ITU-T
G.997.1.
The line encoding method used in establishing the Layer 1 DSL
connection between the CPE and the DSLAM. {{enum}}
Note: Generally speaking, this variable does not change after
provisioning.
{{list}} List items indicate which VDSL2 profiles are allowed on the
line. {{enum}}
Note: In G.997.1, this parameter is called PROFILES. See ITU-T
Recommendation {{bibref|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 {{empty}}.
{{deleted|2.12|because the value is not defined in G997.1}}
Indicates which VDSL2 profile is currently in use on the line.
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 {{empty}}.
The power management state of the line. {{enum}}
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
The success failure cause of the initialization. An enumeration of
the following integer values:
* 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.
* 6: ITU T G.998.4 retransmission mode was not selected while
RTX_MODE = FORCED or with RTX_MODE = RTX_TESTMODE.
Note: In G.997.1, this parameter is called "Initialization
success/failure cause". See Clause 7.5.1.6 of ITU-T Recommendation
{{bibref|G.997.1}}.
This parameter contains the estimated electrical loop length
estimated by the VTU-R expressed in {{units}} at 1MHz (see O-UPDATE
in section 12.2.4.2.1.2/G.993.2). The value is coded as an
unsignedInt in the range 0 (coded as 0) to 128 dB (coded as 1280) in
steps of {{units}}.
Note: This parameter is defined as UPBOKLE-R in Clause 7.5.1.23.2 of
ITU-T Recommendation {{bibref|G.997.1}}.
VTU-O estimated upstream power back-off electrical length per band.
This parameter is a vector of UPBO electrical length per-band
estimates for each supported downstream band, expressed in {{units}}
at 1 MHz (kl0) calculated by the VTU-R, based on separate
measurements in the supported upstream bands. The value of each list
element ranges from 0 to 128 dB in steps of {{units}}, with special
value 204.7 which indicates that the estimate is greater than 128 dB.
This parameter is required for the alternative electrical length
estimation method (ELE-M1).
Note: This parameter is defined as UPBOKLE-pb in Clause 7.5.1.23.3 of
ITU-T Recommendation {{bibref|G.997.1}}.
VTU-R estimated upstream power back-off electrical length per band.
This parameter is a vector of UPBO electrical length per-band
estimates for each supported downstream band, expressed in {{units}}
at 1 MHz (kl0) calculated by the VTU-R, based on separate
measurements in the supported downstream bands. The value of each
list element ranges from 0 to 128 dB in steps of {{units}}, with
special value 204.7 which indicates that the estimate is greater than
128 dB. This parameter is required for the alternative electrical
length estimation method (ELE-M1).
The value of each list element is coded as an unsigned 16 bit number
in the range 0 (coded as 0) to 128 dB (coded as 1280) in steps of
{{units}}.
Note: This parameter is defined as UPBOKLE-R-pb in Clause 7.5.1.23.4
of ITU-T Recommendation {{bibref|G.997.1}}.
UPBO downstream receiver signal level threshold.
This parameter reports the downstream received signal level threshold
value used in the alternative electrical length estimation method
(ELE-M1). This parameter represents an offset from -100 dBm/Hz, and
ranges from -64 dB to 0 dB in steps of {{units}}.
The value is coded as a 16 bit number in the range -64 (coded as
-640) to 0 dB (coded as 0) in steps of {{units}}.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
This parameter indicates the actual active rate adaptation mode in
the downstream direction.
* If {{param}} equals 1, the link is operating in RA-MODE 1 (MANUAL).
* If {{param}} equals 2, the link is operating in RA-MODE 2
(AT_INIT).
* If {{param}} equals 3, the link is operating in RA-MODE 3
(DYNAMIC).
* If {{param}} equals 4, the link is operating in RA-MODE 4 (DYNAMIC
with SOS).
Note: This parameter is defined as ACT-RA-MODEds in Clause 7.5.1.33.1
of ITU-T Recommendation {{bibref|G.997.1}}.
This parameter indicates the actual active rate adaptation mode in
the upstream direction.
* If {{param}} equals 1, the link is operating in RA-MODE 1 (MANUAL).
* If {{param}} equals 2, the link is operating in RA-MODE 2
(AT_INIT).
* If {{param}} equals 3, the link is operating in RA-MODE 3
(DYNAMIC).
* If {{param}} equals 4, the link is operating in RA-MODE 4 (DYNAMIC
with SOS).
Note: This parameter is defined as ACT-RA-MODEus in Clause 7.5.1.33.2
of ITU-T Recommendation {{bibref|G.997.1}}.
This parameter reports the actual impulse noise protection (INP) of
the robust overhead channel (ROC) in the downstream direction. The
format and usage is identical to the channel status parameter
{{param|#.Channel.{i}.ACTINP}}.
Note: This parameter is defined as ACTINP-ROC-ds in Clause 7.5.1.34.1
of ITU-T Recommendation {{bibref|G.997.1}}.
This parameter reports the actual impulse noise protection (INP) of
the robust overhead channel (ROC) in the upstream direction. The
format and usage is identical to the channel status parameter
{{param|#.Channel.{i}.ACTINP}}.
Note: This parameter is defined as ACTINP-ROC-us in Clause 7.5.1.34.2
ITU-T Recommendation {{bibref|G.997.1}}.
This parameter reports the actual signal-to-noise margin of the
robust overhead channel (ROC) in the downstream direction (expressed
in {{units}}). The format is identical to the format of the line
status parameter SNRM margin {{param|DownstreamNoiseMargin}}.
Note: This parameter is defined as SNRM-ROC-ds in Clause 7.5.1.35.1
ITU-T Recommendation {{bibref|G.997.1}}.
This parameter reports the actual signal-to-noise margin of the
robust overhead channel (ROC) in the upstream direction (expressed in
{{units}}). The format is identical to the format of the line status
parameter SNRM margin ({{param|UpstreamNoiseMargin}}).
Note: This parameter is defined as SNRM-ROC-us in Clause 7.5.1.35.2
ITU-T Recommendation {{bibref|G.997.1}}.
This parameter represents the last successful transmitted
initialization state in the downstream direction in the last full
initialization performed on the line. Initialization states are
defined in the individual xDSL Recommendations and are counted from 0
(if G.994.1 is used) or 1 (if G.994.1 is not used) up to Showtime.
This parameter needs to be interpreted along with the xDSL
Transmission System.
This parameter is available only when, after a failed full
initialization, the line diagnostics procedures are activated on the
line.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
This parameter represents the last successful transmitted
initialization state in the upstream direction in the last full
initialization performed on the line. Initialization states are
defined in the individual xDSL Recommendations and are counted from 0
(if G.994.1 is used) or 1 (if G.994.1 is not used) up to Showtime.
This parameter needs to be interpreted along with the xDSL
Transmission System.
This parameter is available only when, after a failed full
initialization, the line diagnostics procedures are activated on the
line.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
This parameter contains the estimated electrical loop length
expressed in {{units}} at 1MHz (see O-UPDATE in section
12.2.4.2.1.2/G.993.2). The value SHALL be coded as an unsigned 16 bit
number in the range 0 (coded as 0) to 128 dB (coded as 1280) in steps
of 0.1 dB.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
This parameter SHALL contain the set of breakpoints exchanged in the
MREFPSDds fields of the O-PRM message of G.993.2. Base64 encoded of
the binary representation defined in Table 12-19/G.993.2 (maximum
length is 145 octets, which requires 196 bytes for Base64 encoding).
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
This parameter SHALL contain the set of breakpoints exchanged in the
MREFPSDus fields of the R-PRM message of G.993.2. Base64 encoded of
the binary representation defined in Table 12-19/G.993.2 (maximum
length is 145 octets, which requires 196 bytes for Base64 encoding).
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Indicates the enabled VDSL2 Limit PSD mask of the selected PSD mask
class. Bit mask as specified in ITU-T Recommendation G.997.1.
Note: For a VDSL2-capable multimode device operating in a mode other
than VDSL2, the value of this parameter SHOULD be set to 0.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Indicates the allowed VDSL2 US0 PSD masks for Annex A operation. Bit
mask as specified in see ITU-T Recommendation G.997.1.
Note: For a VDSL2-capable multimode device operating in a mode other
than VDSL2, the value of this parameter SHOULD be set to 0.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Reports whether trellis coding is enabled in the downstream
direction. A value of 1 indicates that trellis coding is in use, and
a value of 0 indicates that the trellis is disabled.
Note: See ITU-T Recommendation {{bibref|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.
Reports whether trellis coding is enabled in the upstream direction.
A value of 1 indicates that trellis coding is in use, and a value of
0 indicates that the trellis is disabled.
Note: See ITU-T Recommendation {{bibref|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.
Reports whether the OPTIONAL virtual noise mechanism is in use in the
downstream direction. A value of 1 indicates the virtual noise
mechanism is not in use, and a value of 2 indicates the virtual noise
mechanism is in use.
Note: See ITU-T Recommendation {{bibref|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.
Reports whether the OPTIONAL virtual noise mechanism is in use in the
upstream direction. A value of 1 indicates the virtual noise
mechanism is not in use, and a value of 2 indicates the virtual noise
mechanism is in use.
Note: See ITU-T Recommendation {{bibref|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.
Reports the virtual noise PSD for the downstream direction. Base64
encoded of the binary representation defined in G.997.1 by the
parameter called TXREFVNds (maximum length is 97 octets, which
requires 132 bytes for Base64 encoding).
See ITU-T Recommendation {{bibref|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 {{empty}}.
Reports the virtual noise PSD for the upstream direction. Base64
encoded of the binary representation defined in G.997.1by the
parameter called TXREFVNus (maximum length is 49 octets, which
requires 68 bytes for Base64 encoding).
See ITU-T Recommendation {{bibref|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 {{empty}}.
Reports the actual cyclic extension, as the value of m, in use for
the connection.
Note: See ITU-T Recommendation {{bibref|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 99.
Signifies the line pair that the modem is using to connection.
{{param}} = 1 is the innermost pair.
The current maximum attainable data rate upstream (expressed in
{{units}}).
Note: This parameter is related to the G.997.1 parameter ATTNDRus,
which is measured in bits/s. See ITU-T Recommendation
{{bibref|G.997.1}}.
The current maximum attainable data rate downstream (expressed in
{{units}}).
Note: This parameter is related to the G.997.1 parameter ATTNDRds,
which is measured in bits/s. See ITU-T Recommendation
{{bibref|G.997.1}}.
The current signal-to-noise ratio margin (expressed in {{units}}) in
the upstream direction.
Note: In G.997.1, this parameter is called SNRMus. See ITU-T
Recommendation {{bibref|G.997.1}}.
The current signal-to-noise ratio margin (expressed in {{units}}) in
the downstream direction.
Note: In G.997.1, this parameter is called SNRMds. See ITU-T
Recommendation {{bibref|G.997.1}}.
{{list}} Indicates the current signal-to-noise ratio margin of each
upstream band. Interpretation of the values is as defined in ITU-T
Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} Indicates the current signal-to-noise ratio margin of each
band. Interpretation of the values is as defined in ITU-T Rec.
G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
The Impulse Noise Monitoring (INM) Inter Arrival Time (IAT) Offset,
measured in DMT symbols, that the xTU receiver uses to determine in
which bin of the IAT histogram the IAT is reported.
Note: In G.997.1, this parameter is called INMIATO. See ITU-T
Recommendation {{bibref|G.997.1}}.
The Impulse Noise Monitoring (INM) Inter Arrival Time (IAT) Step that
the xTU receiver uses to determine in which bin of the IAT histogram
the IAT is reported.
Note: In G.997.1, this parameter is called INMIATS. See ITU-T
Recommendation {{bibref|G.997.1}}.
The Impulse Noise Monitoring (INM) Cluster Continuation value,
measured in DMT symbols, that the xTU receiver uses in the cluster
indication process.
Note: In G.997.1, this parameter is called INMCC. See ITU-T
Recommendation {{bibref|G.997.1}}.
The Impulse Noise Monitoring (INM) Equivalent Impulse Noise
Protection (INP) Mode that the xTU receiver uses in the computation
of the Equivalent INP.
Note: In G.997.1, this parameter is called INM_INPEQ_MODE. See ITU-T
Recommendation {{bibref|G.997.1}}.
The current upstream signal loss (expressed in {{units}}).
Doesn't apply to VDSL2 {{bibref|G.993.2}}. Otherwise has the same
value as the single element of {{param|TestParams.SATNus}}.
The current downstream signal loss (expressed in {{units}}).
Doesn't apply to VDSL2 {{bibref|G.993.2}}. Otherwise has the same
value as the single element of {{param|TestParams.SATNds}}.
The current output power at the CPE's DSL line (expressed in
{{units}}).
The current received power at the CPE's DSL line (expressed in
{{units}}).
xTU-R vendor identifier as defined in G.994.1 and T1.413. In the case
of G.994.1 this corresponds to the four-octet provider code, which
MUST be represented as eight hexadecimal digits.
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, it MUST have the value "00000000".
Note: In G.997.1, this parameter is called "xTU-R G.994.1 Vendor ID".
See ITU-T Recommendation {{bibref|G.997.1}}.
T.35 country code of the xTU-R vendor as defined in G.994.1, where
the two-octet value defined in G.994.1 MUST be represented as four
hexadecimal digits.
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, it MUST have the value "0000".
Note: In G.997.1, this parameter is called "xTU-R G.994.1 Vendor ID".
See ITU-T Recommendation {{bibref|G.997.1}}.
xTU-R T1.413 Revision Number as defined in T1.413 Issue 2.
When T1.413 modulation is not in use, the parameter value SHOULD be
0.
xTU-R Vendor Revision Number as defined in T1.413 Issue 2.
When T1.413 modulation is not in use, the parameter value SHOULD be
0.
xTU-C vendor identifier as defined in G.994.1 and T1.413. In the case
of G.994.1 this corresponds to the four-octet provider code, which
MUST be represented as eight hexadecimal digits.
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, it MUST have the value "00000000".
T.35 country code of the xTU-C vendor as defined in G.994.1, where
the two-octet value defined in G.994.1 MUST be represented as four
hexadecimal digits.
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, it MUST have the value "0000".
xTU-C T1.413 Revision Number as defined in T1.413 Issue 2.
When T1.413 modulation is not in use, the parameter value SHOULD be
0.
xTU-C Vendor Revision Number as defined in T1.413 Issue 2.
When T1.413 modulation is not in use, the parameter value SHOULD be
0.
Throughput statistics for this interface.
The CPE MUST reset the interface's Stats parameters (unless otherwise
stated in individual object or parameter descriptions) either when the
interface becomes operationally down due to a previous administrative
down (i.e. the interface's {{param|#.Status}} parameter transitions to
a down state after the interface is disabled) or when the interface
becomes administratively up (i.e. the interface's {{param|#.Enable}}
parameter transitions from {{false}} to {{true}}). Administrative and
operational interface status is discussed in {{bibref|TR-181i2|section
4.2.2}}.
The total number of bytes transmitted out of the interface, including
framing characters.
The total number of bytes received on the interface, including
framing characters.
The total number of packets transmitted out of the interface.
The total number of packets received on the interface.
The total number of outbound packets that could not be transmitted
because of errors.
The total number of inbound packets that contained errors preventing
them from being delivered to a higher-layer protocol.
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.
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.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|Total}} statistics.
Statistics SHOULD continue to be accumulated across CPE reboots,
though this might not always be possible.
Note: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the most recent
DSL Showtime - the beginning of the period used for collection of
{{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the second most
recent DSL Showtime-the beginning of the period used for collection
of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
This object contains DSL line total statistics. See
{{bibref|G.997.1|Chapter 7.2.6}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Total number of errored {{units}} (ES-L as defined in ITU-T Rec.
{{bibref|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).
Total number of severely errored {{units}} (SES-L as defined in ITU-T
Rec. {{bibref|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).
This object contains DSL line statistics accumulated since the most
recent DSL Showtime. See {{bibref|G.997.1|Chapter 7.2.6}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of errored {{units}} since the most recent DSL Showtime (ES-L
as defined in ITU-T Rec. {{bibref|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).
Number of severely errored {{units}} since the most recent DSL
Showtime (SES-L as defined in ITU-T Rec. {{bibref|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).
This object contains DSL line statistics accumulated since the second
most recent DSL Showtime. See {{bibref|G.997.1|Chapter 7.2.6}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of errored {{units}} since the second most recent DSL Showtime
(ES-L as defined in ITU-T Rec. {{bibref|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).
Number of severely errored {{units}} since the second most recent DSL
Showtime (SES-L as defined in ITU-T Rec. {{bibref|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).
This object contains DSL line statistics accumulated during the current
day. See {{bibref|G.997.1|Chapter 7.2.6}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of errored {{units}} since the second most recent DSL Showtime
(ES-L as defined in ITU-T Rec. {{bibref|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).
Number of severely errored {{units}} since the second most recent DSL
Showtime (SES-L as defined in ITU-T Rec. {{bibref|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).
This object contains DSL line statistics accumulated during the current
quarter hour. See {{bibref|G.997.1|Chapter 7.2.6}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of errored {{units}} since the second most recent DSL Showtime
(ES-L as defined in ITU-T Rec. {{bibref|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).
Number of severely errored {{units}} since the second most recent DSL
Showtime (SES-L as defined in ITU-T Rec. {{bibref|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).
This object contains the DSL line test parameters that are available
during the L0 (i.e., Showtime) state.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|HLOGpsds}}. Valid values are 1, 2, 4, 8, and
16.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the upstream
direction for {{param|HLOGpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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 {{param|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 {{bibref|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: {{param}} is measured during initialization and is not updated
during Showtime.
{{list}} 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 {{param|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 {{bibref|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: {{param}} is measured during initialization and is not updated
during Showtime.
Indicates the number of symbols over which {{param|HLOGpsds}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Indicates the number of symbols over which {{param|HLOGpsus}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|QLNpsds}}. Valid values are 1, 2, 4, 8, and 16.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the upstream
direction for {{param|QLNpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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
{{param|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 {{bibref|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: {{param}} is measured during initialization and is not updated
during Showtime.
{{list}} 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
{{param|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 {{bibref|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: {{param}} is measured during initialization and is not updated
during Showtime.
Indicates the number of symbols over which {{param|QLNpsds}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Indicates the number of symbols over which {{param|QLNpsus}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the downstream
direction for {{param|SNRpsds}}. Valid values are 1, 2, 4, 8, and 16.
Note: See ITU-T Recommendation {{bibref|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.
Number of sub-carriers per sub-carrier group in the upstream
direction for {{param|SNRpsus}}. Valid values are 1, 2, 4, and 8.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} 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
{{param|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 {{bibref|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: {{param}} is first measured during initialization and is
updated during Showtime.
{{list}} 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 {{param|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 {{bibref|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: {{param}} is first measured during initialization and is
updated during Showtime.
Indicates the number of symbols over which {{param|SNRpsds}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
Indicates the number of symbols over which {{param|SNRpsus}} was
measured.
Note: See ITU-T Recommendation {{bibref|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.
{{list}} Indicates the downstream line attenuation averaged across
all sub-carriers in the frequency band, as computed during
initialization. Number of elements is dependent on the number of
downstream bands but will exceed one only for ITU-T G.993.2.
Interpretation of {{param}} is as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} Indicates the upstream line attenuation averaged across all
sub-carriers in the frequency band, as computed during
initialization. Number of elements is dependent on the number of
upstream bands but will exceed one only for ITU-T G.993.2.
Interpretation of {{param}} is as defined in ITU-T Rec. G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} Indicates the downstream signal attenuation averaged across
all active sub-carriers in the frequency 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 ITU-T
G.993.2. Interpretation of {{param}} is as defined in ITU-T Rec.
G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
{{list}} Indicates the upstream signal attenuation averaged across
all active sub-carriers in the frequency 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 ITU-T
G.993.2. Interpretation of {{param}} is as defined in ITU-T Rec.
G.997.1.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
This object models the DSL data gathering function at the VTU-R. This
only applies to VDSL2.
Note: see ITU-T Recommendation {{bibref|G.993.2}}.
This parameter is the maximum depth of the entire data gathering
event buffer at the VTU-R, in number of {{units}}, where each of the
{{units}} consists of 6 bytes indicating a data gathering event as
defined in {{bibref|G.993.2}}.
Note: This parameter is defined as LOGGING_DEPTH_R in Clause 7.5.3.2
of ITU-T Recommendation {{bibref|G.997.1}}.
This parameter is actual logging depth that is used for reporting the
VTU-R event trace buffer over the eoc channel, in number of
{{units}}, where each of the {{units}} consists of 6 bytes indicating
a data gathering event as defined in {{bibref|G.993.2}}.
Note: This parameter is defined as ACT_LOGGING_DEPTH_REPORTING_R in
Clause 7.5.3.4 of ITU-T Recommendation {{bibref|G.997.1}}.
This parameter identifies the log file of the the data gathering
event trace buffer containing the event records that originated at
the VTU-R.
This indicates the table entry that represents a Vendor Log File that
contains the data gathering buffer at the VTU-R in the
{{object|###.DeviceInfo.VendorLogFile}} table.
This data gathering buffer MAY be retrieved wia an upload RPC of the
identified Vendor Log File.
Note: This parameter is defined as EVENT_TRACE_BUFFER_R in Clause
7.5.3.6 of ITU-T Recommendation {{bibref|G.997.1}} and Clause 11.5 of
ITU-T Recommendation {{bibref|G.993.2}}.
DSL Channel table (a stackable interface object as described in
{{bibref|TR-181i2|Section 4.2}}).
This table models DSL channel(s) on top of physical DSL lines.
Enables or disables the channel.
This parameter is based on ''ifAdminStatus'' from {{bibref|RFC2863}}.
The current operational state of the channel (see
{{bibref|TR-181i2|Section 4.2.2}}). {{enum}}
When {{param|Enable}} is {{false}} then {{param}} SHOULD normally be
{{enum|Down}} (or {{enum|NotPresent}} or {{enum|Error}} if there is a
fault condition on the interface).
When {{param|Enable}} is changed to {{true}} then {{param}} SHOULD
change to {{enum|Up}} if and only if the interface is able to
transmit and receive network traffic; it SHOULD change to
{{enum|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 {{enum|Up}} if still
operable when the expected actions have completed); it SHOULD change
to {{enum|LowerLayerDown}} if and only if the interface is prevented
from entering the {{enum|Up}} state because one or more of the
interfaces beneath it is down; it SHOULD remain in the {{enum|Error}}
state if there is an error or other fault condition detected on the
interface; it SHOULD remain in the {{enum|NotPresent}} state if the
interface has missing (typically hardware) components; it SHOULD
change to {{enum|Unknown}} if the state of the interface can not be
determined for some reason.
This parameter is based on ''ifOperStatus'' from {{bibref|RFC2863}}.
{{datatype|expand}}
The textual name of the channel as assigned by the CPE.
The accumulated time in {{units}} since the channel entered its
current operational state.
{{list}} {{reference|an interface object that is stacked immediately
below this interface object}} See {{bibref|TR-181i2|Section 4.2.1}}.
{{list}} List items indicate which link encapsulation standards and
recommendations are supported by the {{object}} instance.
Auto
Indicates the link encapsulation standard that the {{object}}
instance is using for the connection. {{enum}}
When ATM encapsulation is identified then an upper-layer
{{object|##.ATM.Link}} interface MUST be used.
When PTM encapsulation is identified then an upper-layer
{{object|##.PTM.Link}} interface MUST be used.
Reports the index of the latency path supporting the bearer channel.
Note: See ITU-T Recommendation {{bibref|G.997.1|Section 7.5.2.7}}.
Reports the interleaver depth D for the latency path indicated in
{{param|LPATH}}.
Note: See ITU-T Recommendation {{bibref|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.
Reports the interleaver block length in use on the latency path
indicated in {{param|LPATH}}.
Note: See ITU-T Recommendation {{bibref|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.
Reports the actual delay, in {{units}}, of the latency path due to
interleaving.
Note: In G.997.1, this parameter is called "Actual Interleaving
Delay." See ITU-T Recommendation {{bibref|G.997.1}}.
Reports the actual impulse noise protection (INP) provided by the
latency path indicated in {{param|LPATH}}. The value is the actual
INP in the L0 (i.e., Showtime) state.
Note: See ITU-T Recommendation {{bibref|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.
Reports whether the value reported in ACTINP was computed assuming
the receiver does not use erasure decoding. Valid values are 0
(computed per the formula assuming no erasure decoding) and 1
(computed by taking into account erasure decoding capabilities of
receiver).
Note: See ITU-T Recommendation {{bibref|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 {{false}}.
Reports the size, in {{units}}, of the Reed-Solomon codeword in use
on the latency path indicated in {{param|LPATH}}.
Note: See ITU-T Recommendation {{bibref|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.
Reports the number of redundancy bytes per Reed-Solomon codeword on
the latency path indicated in {{param|LPATH}}.
Note: See ITU-T Recommendation {{bibref|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.
Reports the number of bits per symbol assigned to the latency path
indicated in {{param|LPATH}}. This value does not include overhead
due to trellis coding.
Note: See ITU-T Recommendation {{bibref|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.
The current physical layer aggregate data rate (expressed in
{{units}}) 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).
The current physical layer aggregate data rate (expressed in
{{units}}) 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).
Actual net data rate expressed in {{units}}. Independent whether
retransmission is used or not in a given transmit direction:
* In L0 state, this parameter reports the net data rate (as specified
in [ITU T G.992.3], [ITU T G.992.5] or [ITU T G.993.2]) at which
the bearer channel is operating.
* In L2 state, the parameter contains the net data rate (as specified
in [ITU T G.992.3], [ITU T G.992.5] or [ITU T G.993.2]) in the
previous L0 state.
Note: See ITU-T Recommendation {{bibref|G.997.1}}.
Actual impulse noise protection against REIN, expressed in {{units}}.
If retransmission is used in a given transmit direction, this
parameter reports the actual impulse noise protection (INP) against
REIN (under specific conditions detailed in [ITU T G.998.4]) on the
bearer channel in the L0 state. In the L2 state, the parameter
contains the INP in the previous L0 state.
The value is coded in fractions of DMT symbols with a granularity of
0.1 symbols.
The range is from 0 to 25.4. A special value of 25.5 indicates an
ACTINP_REIN of 25.5 or higher.
Note: This parameter is defined as ACTINP_REIN in Clause 7.5.2.9 of
ITU-T Recommendation {{bibref|G.997.1}}.
Throughput statistics for this interface.
The CPE MUST reset the interface's Stats parameters (unless otherwise
stated in individual object or parameter descriptions) either when the
interface becomes operationally down due to a previous administrative
down (i.e. the interface's {{param|#.Status}} parameter transitions to
a down state after the interface is disabled) or when the interface
becomes administratively up (i.e. the interface's {{param|#.Enable}}
parameter transitions from {{false}} to {{true}}). Administrative and
operational interface status is discussed in {{bibref|TR-181i2|section
4.2.2}}.
The total number of bytes transmitted out of the interface, including
framing characters.
The total number of bytes received on the interface, including
framing characters.
The total number of packets transmitted out of the interface.
The total number of packets received on the interface.
The total number of outbound packets that could not be transmitted
because of errors.
The total number of inbound packets that contained errors preventing
them from being delivered to a higher-layer protocol.
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.
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.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|Total}} statistics.
Statistics SHOULD continue to be accumulated across CPE reboots,
though this might not always be possible.
Note: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the most recent
DSL Showtime - the beginning of the period used for collection of
{{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the second most
recent DSL Showtime-the beginning of the period used for collection
of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
This object contains DSL channel total statistics {{bibref|G.997.1}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Total number of FEC errors detected (FEC-C as defined in ITU-T Rec.
{{bibref|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).
Total number of FEC errors detected by the ATU-C (FEC-CFE as defined
in ITU-T Rec. {{bibref|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).
Total number of HEC errors detected (HEC-P as defined in ITU-T Rec.
{{bibref|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).
Total number of HEC errors detected by the ATU-C (HEC-PFE as defined
in ITU-T Rec. {{bibref|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).
Total number of CRC errors detected (CV-C as defined in ITU-T Rec.
{{bibref|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).
Total number of CRC errors detected by the ATU-C (CV-CFE as defined
in ITU-T Rec. {{bibref|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).
This object contains DSL channel statistics accumulated since the most
recent DSL Showtime {{bibref|G.997.1}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of FEC errors detected since the most recent DSL Showtime
(FEC-C as defined in ITU-T Rec. {{bibref|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).
Number of FEC errors detected by the ATU-C since the most recent DSL
Showtime (FEC-CFE as defined in ITU-T Rec. {{bibref|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).
Number of HEC errors detected since the most recent DSL Showtime
(HEC-P as defined in ITU-T Rec. {{bibref|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).
Number of HEC errors detected by the ATU-C since the most recent DSL
Showtime (HEC-PFE as defined in ITU-T Rec. {{bibref|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).
Number of CRC errors detected since the most recent DSL Showtime
(CV-C as defined in ITU-T Rec. {{bibref|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).
Number of CRC errors detected by the ATU-C since the most recent DSL
Showtime (CV-CFE as defined in ITU-T Rec. {{bibref|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).
This object contains DSL channel statistics accumulated since the
second most recent DSL Showtime {{bibref|G.997.1}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of FEC errors detected since the second most recent DSL
Showtime (FEC-C as defined in ITU-T Rec. {{bibref|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).
Number of FEC errors detected by the ATU-C since the second most
recent DSL Showtime (FEC-CFE as defined in ITU-T Rec.
{{bibref|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).
Number of HEC errors detected since the second most recent DSL
Showtime (HEC-P as defined in ITU-T Rec. {{bibref|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).
Number of HEC errors detected by the ATU-C since the second most
recent DSL Showtime (HEC-PFE as defined in ITU-T Rec.
{{bibref|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).
Number of CRC errors detected since the second most recent DSL
Showtime (CV-C as defined in ITU-T Rec. {{bibref|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).
Number of CRC errors detected by the ATU-C since the second most
recent DSL Showtime (CV-CFE as defined in ITU-T Rec.
{{bibref|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).
This object contains DSL channel statistics accumulated during the
current day {{bibref|G.997.1}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of FEC errors detected since the second most recent DSL
Showtime (FEC-C as defined in ITU-T Rec. {{bibref|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).
Number of FEC errors detected by the ATU-C since the second most
recent DSL Showtime (FEC-CFE as defined in ITU-T Rec.
{{bibref|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).
Number of HEC errors detected since the second most recent DSL
Showtime (HEC-P as defined in ITU-T Rec. {{bibref|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).
Number of HEC errors detected by the ATU-C since the second most
recent DSL Showtime (HEC-PFE as defined in ITU-T Rec.
{{bibref|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).
Number of CRC errors detected since the second most recent DSL
Showtime (CV-C as defined in ITU-T Rec. {{bibref|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).
Number of CRC errors detected by the ATU-C since the second most
recent DSL Showtime (CV-CFE as defined in ITU-T Rec.
{{bibref|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).
This object contains DSL channel statistics accumulated during the
current quarter hour {{bibref|G.997.1}}.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
Number of FEC errors detected since the second most recent DSL
Showtime (FEC-C as defined in ITU-T Rec. {{bibref|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).
Number of FEC errors detected by the ATU-C since the second most
recent DSL Showtime (FEC-CFE as defined in ITU-T Rec.
{{bibref|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).
Number of HEC errors detected since the second most recent DSL
Showtime (HEC-P as defined in ITU-T Rec. {{bibref|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).
Number of HEC errors detected by the ATU-C since the second most
recent DSL Showtime (HEC-PFE as defined in ITU-T Rec.
{{bibref|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).
Number of CRC errors detected since the second most recent DSL
Showtime (CV-C as defined in ITU-T Rec. {{bibref|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).
Number of CRC errors detected by the ATU-C since the second most
recent DSL Showtime (CV-CFE as defined in ITU-T Rec.
{{bibref|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).
DSL bonding group table (a stackable interface object as described in
{{bibref|TR-181i2|Section 4.2}}). Each instance is a bonding group, and
is expected to be stacked above a {{object|#.Channel}} instance or a
{{object|##.FAST.Line}} instance for each bonded channel in the group.
Many of the parameters within this object, including
{{param|LowerLayers}}, are read-only because bonding is not expected to
be configured by a Controller.
The DSL bonding data model is closely aligned with {{bibref|TR-159}}.
Corresponds to {{bibref|TR-159}} ''oBondingGroup''.
Enables or disables the bonding group.
This parameter is based on ''ifAdminStatus'' from {{bibref|RFC2863}}.
The current operational state of the bonding group (see
{{bibref|TR-181i2|Section 4.2.2}}). {{enum}}
When {{param|Enable}} is {{false}} then {{param}} SHOULD normally be
{{enum|Down}} (or {{enum|NotPresent}} or {{enum|Error}} if there is a
fault condition on the interface).
When {{param|Enable}} is changed to {{true}} then {{param}} SHOULD
change to {{enum|Up}} if and only if the interface is able to
transmit and receive network traffic; it SHOULD change to
{{enum|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 {{enum|Up}} if still
operable when the expected actions have completed); it SHOULD change
to {{enum|LowerLayerDown}} if and only if the interface is prevented
from entering the {{enum|Up}} state because one or more of the
interfaces beneath it is down; it SHOULD remain in the {{enum|Error}}
state if there is an error or other fault condition detected on the
interface; it SHOULD remain in the {{enum|NotPresent}} state if the
interface has missing (typically hardware) components; it SHOULD
change to {{enum|Unknown}} if the state of the interface can not be
determined for some reason.
This parameter is based on ''ifOperStatus'' from {{bibref|RFC2863}}.
{{datatype|expand}}
The textual name of the bonding group as assigned by the CPE.
The accumulated time in {{units}} since the bonding group entered its
current operational state.
{{list}} {{reference|an interface object that is stacked immediately
below this interface object}} See {{bibref|TR-181i2|Section 4.2.1}}.
{{param}} is read-only for this object because bonding is expected to
be configured by the CPE, not by the Controller.
{{list}} Indicates the current fault status of the DSL bonding group.
{{enum}}
Corresponds to {{bibref|TR-159}} ''oBondingGroup.aGroupStatus''.
Peer physical layer is unreachable
Local device received a "dying gasp" message (preceding a
loss-of-power) from the peer device
Operating bonding scheme of the peer port is different from the
local one
Upstream or downstream data rate is at or below threshold
DSL bonding group ID. Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupID''.
{{list}} Supported DSL bonding schemes. {{enum}}
Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupBondSchemesSupported''.
{{bibref|G.998.1}} ATM-based bonding
{{bibref|G.998.2}} Ethernet-based bonding
{{bibref|G.998.3}} TDIM-based bonding
Currently operating bonding scheme. Corresponds to {{bibref|TR-159}}
''aGroupOperBondScheme''.
DSL bonding group capacity, i.e. the maximum number of channels that
can be bonded in this group. Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupCapacity''.
The accumulated time in {{units}} for which this bonding group has
been operationally up. Corresponds to {{bibref|G.998.1|section
11.4.2}} ''Group Running Time''.
Desired upstream data rate in {{units}} for this DSL bonding group
(zero indicates best effort). Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupTargetUpRate''.
Desired downstream data rate in {{units}} for DSL bonding group (zero
indicates best effort). Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupTargetDownRate''.
Threshold upstream data rate in {{units}} for this DSL bonding group.
{{param|GroupStatus}} will include {{enum|LowRate|GroupStatus}}
whenever the upstream rate is less than this threshold. Corresponds
to {{bibref|TR-159}} ''oBondingGroup.aGroupThreshLowUpRate''.
Threshold downstream data rate in {{units}} for this DSL bonding
group. {{param|GroupStatus}} will include
{{enum|LowRate|GroupStatus}} whenever the downstream rate is less
than this threshold. Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupThreshLowDownRate''.
The maximum upstream differential delay in {{units}} among member
links in a bonding group. Corresponds to {{bibref|G.998.1|section
11.4.1}} ''Differential Delay Tolerance''.
The maximum downstream differential delay in {{units}} among member
links in a bonding group. Corresponds to {{bibref|G.998.1|section
11.4.1}} ''Differential Delay Tolerance''.
{{numentries}} Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupNumChannels''.
DSL bonded channel table. Each table entry represents a bonded channel
within the bonding group, and is associated with exactly one
{{object|##.Channel}} instance or one {{object|###.FAST.Line}}
instance. There MUST be an instance of {{object}} for each DSL channel
or FAST line that is bonded.
When a {{object|##.Channel}} or {{object|###.FAST.Line}} is no longer
bonded, then the CPE MUST delete the corresponding {{object}} instance.
However, when a bonded {{object|##.Channel}} or
{{object|###.FAST.Line}} becomes disabled, the channel remains bonded
and so the corresponding {{object}} instance MUST NOT be deleted.
{{datatype|expand}}
{{reference}}This is the channel that is being bonded.
This is read-only because bonding is expected to be configured by the
CPE, not by the Controller.
Per-channel {{bibref|G.998.2}} Ethernet-based bonding parameters.
Per-channel {{bibref|G.998.2}} Ethernet-based bonding statistics.
These relate to the {{bibref|G.998.2}} PME (Physical Medium Entity)
Aggregation Function (PAF) lower layer (per-channel) interfaces.
The CPE MUST reset the Stats parameters either when the interface
becomes operationally down due to a previous administrative down (i.e.
the interface's {{param|###.Status}} parameter transitions to a down
state after the interface is disabled) or when the interface becomes
administratively up (i.e. the interface's {{param|###.Enable}}
parameter transitions from {{false}} to {{true}}). Administrative and
operational interface status is discussed in {{bibref|TR-181i2|section
4.2.2}}.
Number of underflow errors sent, i.e. on the transmit side of the
interface.
Number of CRC errors received, i.e. on the receive side of the
interface.
Number of alignment errors received, i.e. on the receive side of the
interface.
Number of short packets received, i.e. on the receive side of the
interface.
Number of long packets received, i.e. on the receive side of the
interface.
Number of overflow errors received, i.e. on the receive side of the
interface.
Number of pause frames received, i.e. on the receive side of the
interface.
Number of frames dropped, e.g. because the receive queue is full.
Throughput statistics for this interface.
The CPE MUST reset the interface's Stats parameters (unless otherwise
stated in individual object or parameter descriptions) either when the
interface becomes operationally down due to a previous administrative
down (i.e. the interface's {{param|#.Status}} parameter transitions to
a down state after the interface is disabled) or when the interface
becomes administratively up (i.e. the interface's {{param|#.Enable}}
parameter transitions from {{false}} to {{true}}). Administrative and
operational interface status is discussed in {{bibref|TR-181i2|section
4.2.2}}.
The total number of bytes transmitted out of the interface, including
framing characters.
The total number of bytes received on the interface, including
framing characters.
The total number of packets transmitted out of the interface.
The total number of packets received on the interface.
The total number of outbound packets that could not be transmitted
because of errors.
The total number of inbound packets that contained errors preventing
them from being delivered to a higher-layer protocol.
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.
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.
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.
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.
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.
The total number of received packets, delivered by this layer to a
higher layer, which were addressed to a multicast address at this
layer.
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.
The total number of received packets, delivered by this layer to a
higher layer, which were addressed to a broadcast address at this
layer.
The total number of packets received via the interface which were
discarded because of an unknown or unsupported protocol.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|Total}} statistics.
Statistics SHOULD continue to be accumulated across CPE reboots,
though this might not always be possible.
Note: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
DSL-specific statistic. The Number of {{units}} since the beginning
of the period used for collection of {{object|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: {{param}} SHOULD NOT be reset when the interface statistics are
reset via an interface disable / enable cycle.
Total statistics for this bonding group.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
{{list}} Indicates the failure conditions that have occurred during
the accumulation period. {{enum}}
Corresponds to {{bibref|G.998.1|section 11.4.3}} ''Current Group
Failure Reason''.
Minimum data rate not met
Differential delay tolerance exceeded
Insufficient buffers on receiver
Other failure occurred
The achieved upstream data rate in {{units}} (which might change
subject to dynamic link usage conditions). Corresponds to
{{bibref|G.998.1|section 11.4.2}} ''Achieved Aggregate Data Rate''.
The achieved downstream data rate in {{units}} (which might change
subject to dynamic link usage conditions). Corresponds to
{{bibref|G.998.1|section 11.4.2}} ''Achieved Aggregate Data Rate''.
The total number of upstream packets that were lost at aggregation
output from a bonding group during the accumulation period.
Corresponds to {{bibref|G.998.1|section 11.4.2}} ''Group Rx Cell Loss
Count''.
The total number of downstream packets that were lost at aggregation
output from a bonding group during the accumulation period.
Corresponds to {{bibref|G.998.1|section 11.4.2}} ''Group Rx Cell Loss
Count''.
The achieved upstream differential delay in {{units}} (which might
change subject to dynamic link usage conditions).
The achieved downstream differential delay in {{units}} (which might
change subject to dynamic link usage conditions).
The number of times that the group was declared ''Unavailable''
during the accumulation period. Corresponds to
{{bibref|G.998.1|Section 11.4.3}} ''Group Failure Count''.
The time in {{units}} during which the group was declared ''Errored''
during the accumulation period. Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupPerf**ES''.
The time in {{units}} during which the group was declared
''SeverelyErrored'' during the accumulation period. Corresponds to
{{bibref|TR-159}} ''oBondingGroup.aGroupPerf**SES''.
The time in {{units}} during which the group was declared
''Unavailable'' during the accumulation period. Corresponds to
{{bibref|TR-159}} ''oBondingGroup.aGroupPerf**UAS''.
Current day statistics for this bonding group.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
{{list}} Indicates the failure conditions that have occurred during
the accumulation period. {{enum}}
Corresponds to {{bibref|G.998.1|section 11.4.3}} ''Current Group
Failure Reason''.
Minimum data rate not met
Differential delay tolerance exceeded
Insufficient buffers on receiver
Other failure occurred
The achieved upstream data rate in {{units}} (which might change
subject to dynamic link usage conditions). Corresponds to
{{bibref|G.998.1|section 11.4.2}} ''Achieved Aggregate Data Rate''.
The achieved downstream data rate in {{units}} (which might change
subject to dynamic link usage conditions). Corresponds to
{{bibref|G.998.1|section 11.4.2}} ''Achieved Aggregate Data Rate''.
The total number of upstream packets that were lost at aggregation
output from a bonding group during the accumulation period.
Corresponds to {{bibref|G.998.1|section 11.4.2}} ''Group Rx Cell Loss
Count''.
The total number of downstream packets that were lost at aggregation
output from a bonding group during the accumulation period.
Corresponds to {{bibref|G.998.1|section 11.4.2}} ''Group Rx Cell Loss
Count''.
The achieved upstream differential delay in {{units}} (which might
change subject to dynamic link usage conditions).
The achieved downstream differential delay in {{units}} (which might
change subject to dynamic link usage conditions).
The number of times that the group was declared ''Unavailable''
during the accumulation period. Corresponds to
{{bibref|G.998.1|Section 11.4.3}} ''Group Failure Count''.
The time in {{units}} during which the group was declared ''Errored''
during the accumulation period. Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupPerf**ES''.
The time in {{units}} during which the group was declared
''SeverelyErrored'' during the accumulation period. Corresponds to
{{bibref|TR-159}} ''oBondingGroup.aGroupPerf**SES''.
The time in {{units}} during which the group was declared
''Unavailable'' during the accumulation period. Corresponds to
{{bibref|TR-159}} ''oBondingGroup.aGroupPerf**UAS''.
Current quarter hour statistics for this bonding group.
Note: The {{object}} parameters SHOULD NOT be reset when the interface
statistics are reset via an interface disable / enable cycle.
{{list}} Indicates the failure conditions that have occurred during
the accumulation period. {{enum}}
Corresponds to {{bibref|G.998.1|section 11.4.3}} ''Current Group
Failure Reason''.
Minimum data rate not met
Differential delay tolerance exceeded
Insufficient buffers on receiver
Other failure occurred
The achieved upstream data rate in {{units}} (which might change
subject to dynamic link usage conditions). Corresponds to
{{bibref|G.998.1|section 11.4.2}} ''Achieved Aggregate Data Rate''.
The achieved downstream data rate in {{units}} (which might change
subject to dynamic link usage conditions). Corresponds to
{{bibref|G.998.1|section 11.4.2}} ''Achieved Aggregate Data Rate''.
The total number of upstream packets that were lost at aggregation
output from a bonding group during the accumulation period.
Corresponds to {{bibref|G.998.1|section 11.4.2}} ''Group Rx Cell Loss
Count''.
The total number of downstream packets that were lost at aggregation
output from a bonding group during the accumulation period.
Corresponds to {{bibref|G.998.1|section 11.4.2}} ''Group Rx Cell Loss
Count''.
The achieved upstream differential delay in {{units}} (which might
change subject to dynamic link usage conditions).
The achieved downstream differential delay in {{units}} (which might
change subject to dynamic link usage conditions).
The number of times that the group was declared ''Unavailable''
during the accumulation period. Corresponds to
{{bibref|G.998.1|Section 11.4.3}} ''Group Failure Count''.
The time in {{units}} during which the group was declared ''Errored''
during the accumulation period. Corresponds to {{bibref|TR-159}}
''oBondingGroup.aGroupPerf**ES''.
The time in {{units}} during which the group was declared
''SeverelyErrored'' during the accumulation period. Corresponds to
{{bibref|TR-159}} ''oBondingGroup.aGroupPerf**SES''.
The time in {{units}} during which the group was declared
''Unavailable'' during the accumulation period. Corresponds to
{{bibref|TR-159}} ''oBondingGroup.aGroupPerf**UAS''.
Ethernet-based bonding parameters {{bibref|G.998.2}}.
{{bibref|G.998.2}} Ethernet-based bonding statistics.
These relate to the {{bibref|G.998.2}} PME (Physical Medium Entity)
Aggregation Function (PAF) and to its upper layer interface. PAF lower
layer interface statistics are in the
{{object|##.BondedChannel.{i}.Ethernet.Stats}} objects.
The CPE MUST reset the Stats parameters either when the interface
becomes operationally down due to a previous administrative down (i.e.
the interface's {{param|##.Status}} parameter transitions to a down
state after the interface is disabled) or when the interface becomes
administratively up (i.e. the interface's {{param|##.Enable}} parameter
transitions from {{false}} to {{true}}). Administrative and operational
interface status is discussed in {{bibref|TR-181i2|section 4.2.2}}.
Number of PAF errors. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxErrors''.
Number of PAF Small Fragment events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxSmallFragments''.
Number of PAF Large Fragment events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxLargeFragments''.
Number of PAF Bad Fragment events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxBadFragments''.
Number of PAF Lost Fragment events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxLostFragments''.
Number of PAF Late Fragment events.
Number of PAF Lost Start events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxLostStarts''.
Number of PAF Lost End events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxLostEnds''.
Number of PAF Overflow events. Corresponds to {{bibref|TR-159}}
''oBondETH.aEthRxOverflows''.
Number of pause frames sent, i.e. on the transmit side of the
interface.
Number of CRC errors received, i.e. on the receive side of the
interface.
Number of alignment errors received, i.e. on the receive side of the
interface.
Number of short packets received, i.e. on the receive side of the
interface.
Number of long packets received, i.e. on the receive side of the
interface.
Number of overflow errors received, i.e. on the receive side of the
interface.
Number of frames dropped, e.g. because the receive queue is full.
The DSL Diagnostics object.
Note: This profile is valid for G.992.1 modems.
Note: This profile is valid for G.992.3 and G.992.5 modems.
{{deleted|2.15}}
{{deleted|2.15}}
{{deleted|2.15}}
Note: This profile is valid for G.992.3 and G.992.5 modems.
{{deleted|2.15}}
{{deleted|2.15}}
{{deleted|2.12|because it doesn't apply to VDSL2}}
{{deleted|2.12|because it doesn't apply to VDSL2}}