bbf-vdsl-impulse-noise-protection-delay-profile-body

This submodule contains a collection of YANG definitions for managing Broadband Forum TR-252i3 clause 5.7 DSL Quality Management...

  • Version: 2022-05-23

    bbf-vdsl-impulse-noise-protection-delay-profile-body@2022-05-23


    
      submodule bbf-vdsl-impulse-noise-protection-delay-profile-body {
    
        yang-version 1.1;
    
        belongs-to bbf-vdsl {
            prefix bbf-vdsl;
        }
    
        organization
          "Broadband Forum <https://www.broadband-forum.org>
         Common YANG Work Area";
    
        contact
          "Comments or questions about this Broadband Forum YANG module
         should be directed to <mailto:help@broadband-forum.org>.
    
         Editor:      Ken Kerpez, ASSIA, Inc.
    
         Editor:      Joey Boyd, Adtran
    
         PS Leader:   Joey Boyd, Adtran
    
         WA Director: Sven Ooghe, Nokia
    
         WA Director: Joey Boyd, Adtran";
    
        description
          "This submodule contains a collection of YANG definitions for
         managing Broadband Forum TR-252i3 clause 5.7 DSL Quality
         Management related profiles; INP-Delay Profile.
    
         Copyright (c) 2016-2022 Broadband Forum
    
         Redistribution and use in source and binary forms, with or
         without modification, are permitted provided that the following
         conditions are met:
    
         1. Redistributions of source code must retain the above copyright
            notice, this list of conditions and the following disclaimer.
    
         2. Redistributions in binary form must reproduce the above
            copyright notice, this list of conditions and the following
            disclaimer in the documentation and/or other materials
            provided with the distribution.
    
         3. Neither the name of the copyright holder nor the names of its
            contributors may be used to endorse or promote products
            derived from this software without specific prior written
            permission.
    
         THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
         CONTRIBUTORS \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES,
         INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
         MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
         DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
         CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
         SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
         NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
         LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
         CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
         STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
         ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
         ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    
         The above license is used as a license under copyright only.
         Please reference the Forum IPR Policy for patent licensing terms
         <https://www.broadband-forum.org/ipr-policy>.
    
         Any moral rights which are necessary to exercise under the above
         license grant are also deemed granted under this license.
    
         This version of this YANG module is part of TR-355a4; see
         the TR itself for full legal notices.";
    
        revision "2022-05-23" {
          description
            "Amendment 4.
           * Approval Date:    2022-05-23
           * Publication Date: 2022-05-23.";
          reference
            "TR-355a4: YANG Modules for FTTdp Management
            	    <https://www.broadband-forum.org/download/
            		   TR-355_Amendment-4.pdf>";
    
        }
    
        revision "2020-10-13" {
          description
            "Amendment 3.
           * Approval Date:    2020-10-13
           * Publication Date: 2020-10-13.";
          reference
            "TR-355a3: YANG Modules for FTTdp Management
            	    <https://www.broadband-forum.org/download/
            		   TR-355_Amendment-3.pdf>";
    
        }
    
        revision "2019-10-21" {
          description
            "Amendment 2 Corrigendum 1.
           * Approval Date:    2019-10-21
           * Publication Date: 2019-10-21.";
          reference
            "TR-355a2c1: YANG Modules for FTTdp Management
            	    <https://www.broadband-forum.org/download/
            		   TR-355_Amendment-2.pdf>";
    
        }
    
        revision "2019-06-11" {
          description
            "Amendment 2.
           * Approval Date:    2019-06-11
           * Publication Date: 2019-06-11.";
          reference
            "TR-355a2: YANG Modules for FTTdp Management
            	  <https://www.broadband-forum.org/technical/download/
            		 TR-355_Amendment-2.pdf>";
    
        }
    
        revision "2018-10-01" {
          description
            "Amendment 1.
           * Approval Date:    2018-10-01
           * Publication Date: 2018-10-01.";
          reference
            "TR-355a1: YANG Modules for FTTdp Management
            	  <https://www.broadband-forum.org/technical/download/
            		 TR-355_Amendment-1.pdf>";
    
        }
    
        revision "2017-11-27" {
          description
            "Corrigendum 2 (fixes to the previous revision).
           * Approval Date:    see revision date above.
           * Publication Date: 2018-01-19.";
          reference
            "TR-355c2: YANG Modules for FTTdp Management
            	  <https://www.broadband-forum.org/technical/download/
            		 TR-355_Corrigendum-2.pdf>";
    
        }
    
        revision "2017-03-13" {
          description
            "Corrigendum 1 (fixes to the initial revision).
           * Approval Date:    see revision date above.
           * Publication Date: 2017-04-12.";
          reference
            "TR-355c1: YANG Modules for FTTdp Management
            	  <https://www.broadband-forum.org/technical/download/
            		 TR-355_Corrigendum-1.pdf>";
    
        }
    
        revision "2016-07-18" {
          description
            "Initial revision.
           * Approval Date:    see revision date above.
           * Publication Date: 2016-08-05.";
          reference
            "TR-355: YANG Modules for FTTdp Management
            	<https://www.broadband-forum.org/technical/download/
            		 TR-355.pdf>";
    
        }
    
    
        grouping impulse-noise-protection-delay-profile {
          description
            "The Impulse Noise Protection (INP) Delay profile contains
           INP-Delay parameters for each pair of upstream and downstream
           channels.";
          leaf force-framer-setting-inp {
            type boolean;
            default "false";
            description
              "If retransmission is not used in a given transmit direction,
             this parameter indicates that the framer settings of the
             bearer will be selected such that the Impulse Noise
             Protection (INP) computed according to the formula specified
             in the relevant Recommendation is greater than or equal to
             the minimal impulse noise protection requirement.
             This flag will have the same value for all the bearers
             of one line in the same direction.";
            reference
              "ITU-T G.997.1 clause 7.3.2.5 (FORCEINP)";
    
          }
    
          leaf minimum-inp {
            type uint8 {
              range
                "0..2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18
    | 20 | 22 | 24 | 26 | 28 | 30 | 32";
            }
            units "0.5 symbols";
            default "0";
            description
              "If retransmission is not used in a given transmit direction,
             this parameter specifies the minimum Impulse Noise Protection
             (INPMIN) for the bearer channel if it is transported over DMT
             symbols with a subcarrier spacing of 4.3125 kHz. The impulse
             noise protection is expressed in Discrete Multi-Tone (DMT)
             symbols with a subcarrier spacing of 4.3125 kHz and can take
             the values and any integer from 0 to 16, inclusive.
             If the xDSL Transceiver Unit (xTU) does not support the
             configured INPMIN value, it will use the nearest supported
             impulse noise protection greater than INPMIN.";
            reference
              "ITU-T G.997.1 clause 7.3.2.3 (INPMIN)";
    
          }
    
          leaf minimum-inp-8 {
            type uint8 {
              range "0..16";
            }
            units "symbols";
            default "0";
            description
              "If retransmission is not used in a given transmit direction,
             this parameter specifies the minimum Impulse Noise Protection
             (INP) for the bearer channel if it is transported over
             Discrete Multi-Tone (DMT) symbols with a subcarrier spacing
             of 8.625 kHz. The impulse noise protection is expressed in
             DMT symbols with a subcarrier spacing of 8.625 kHz and can
             take any integer value from 0 to 16, inclusive.";
            reference
              "ITU-T G.997.1 clause 7.3.2.4 (INPMIN8)";
    
          }
    
          leaf maximum-interleaving-delay {
            type union {
              type uint8 {
                range "2..63";
              }
              type enumeration {
                enum "S0" {
                  value 0;
                  description
                    "The value S0 indicates no delay bound is being
                   imposed.";
                }
                enum "S1" {
                  value 1;
                  description
                    "The value S1 indicates the fast latency path will be
                   used in the G.992.1 operating mode and S and D will
                   be selected such that S <= 1 and D = 1 in
                   [ITU-T G.992.2], [ITU-T G.992.3], [ITU-T G.992.4],
                   [ITU-T G.992.5] and [ITU-T G.993.2]
                   operating modes.";
                }
                enum "S2" {
                  value 2;
                  description
                    "The value S2 indicates a delay bound of 1 millisecond
                   in [ITU-T G.993.2].";
                }
              }
            }
            units "milliseconds";
            default "16";
            description
              "If retransmission is not used in a given transmit direction,
             this parameter is the maximum one-way interleaving delay
             introduced by the Physical Media Specific Transmission
             Convergence (PMS-TC) between the alpha and the beta reference
             points, in the direction of the bearer channel. The one-way
             interleaving delay is defined in individual ADSL
             Recommendations as Roundup(S*D) /4 milliseconds, where S is
             the S-factor and D is the Interleaving Depth and Roundup(x)
             denotes rounding to the higher integer. The xDSL Transceiver
             Units (xTU) will choose the S and D values such that the
             actual one-way interleaving delay is less than or equal to
             the configured maximum interleaving delay.";
            reference
              "ITU-T G.997.1 clauses 7.3.2.2 and 7.5.2.3";
    
          }
    
          leaf maximum-delay-rtx {
            type uint8 {
              range "1..63";
            }
            units "milliseconds";
            default "16";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the maximum for the instantaneous
             delay due to the effect of retransmission only. The delay
             ranges from 1 to 63 milliseconds by steps of 1 milisecond.";
            reference
              "ITU-T G.997.1 clause 7.3.2.11 (DELAYMAX_RTX);
              ITU-T G.998.4";
    
          }
    
          leaf minimum-delay-rtx {
            type uint8 {
              range "0..62";
            }
            units "milliseconds";
            must '. < ../maximum-delay-rtx' {
              error-message
                "'minimum-delay-rtx' is greater than or equal to "
                  + "'maximum-delay-rtx'.";
              description
                "The minimum delay must be less than the maximum delay for
               retransmission.";
            }
            default "0";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the minimum for the instantaneous
             delay due to the effect of retransmission only. The delay
             ranges from 0 to 62 milliseconds by steps of 1 millisecond.";
            reference
              "ITU-T G.997.1 clause 7.3.2.12 (DELAYMIN_RTX);
              ITU-T G.998.4";
    
          }
    
          leaf minimum-inp-against-shine-rtx {
            type uint8 {
              range "0..63";
            }
            units "symbols";
            default "0";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the minimum Impulse Noise
             Protection (INP) against Single High Impulse Noise Event
             (SHINE) for the bearer channel if it is transported over
             Discrete Multi-Tone (DMT) symbols with a subcarrier spacing
             of 4.3125 kHz. The impulse noise protection is expressed in
             DMT symbols with a subcarrier spacing of 4.3125 kHz and can
             take any integer value from 0 to 63, inclusive.";
            reference
              "ITU-T G.997.1 clause 7.3.2.13 (INPMIN_SHINE_RTX)";
    
          }
    
          leaf minimum-inp-against-shine-8-rtx {
            type uint8 {
              range "0..127";
            }
            units "symbols";
            default "0";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the minimum impulse noise
             protection against Single High Impulse Noise Event (SHINE)
             for the bearer channel if it is transported over Discrete
             Multi-Tone (DMT) symbols with a subcarrier spacing of
             8.625 kHz. The impulse noise protection is expressed
             in DMT symbols with a subcarrier spacing of 8.625 kHz
             and can take any integer value from 0 to 127,
             inclusive.";
            reference
              "ITU-T G.997.1 clause 7.3.2.14 (INPMIN8_SHINE_RTX)";
    
          }
    
          leaf shine-ratio-rtx {
            type uint8 {
              range "0..100";
            }
            units "0.001";
            default "0";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the Single High Impulse Noise Event
             (SHINE) ratio. The values range from 0 to 0.100 in increments
             of 0.001.";
            reference
              "ITU-T G.997.1 clause 7.3.2.15 (SHINERATIO_RTX);
              ITU-T G.998.4";
    
          }
    
          leaf minimum-inp-against-rein-rtx {
            type uint8 {
              range "0..7";
            }
            units "symbols";
            default "0";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the minimum impulse noise
             protection against Repetitive Electrical Impulse Noise (REIN)
             for the bearer channel if it is transported over Discrete
             Multi-Tone (DMT) symbols with a subcarrier spacing of 4.3125
             kHz. The impulse noise protection is expressed in DMT symbols
             with a subcarrier spacing of 4.3125 kHz and can take any
             integer value from 0 to 7, inclusive.";
            reference
              "ITU-T G.997.1 clause 7.3.2.16 (INPMIN_REIN_RTX)";
    
          }
    
          leaf minimum-inp-against-rein-8-rtx {
            type uint8 {
              range "0..13";
            }
            units "symbols";
            default "0";
            description
              "If retransmission is used in a given transmit direction,
             this parameter specifies the minimum impulse noise
             protection against Repetitive Electrical Impulse Noise (REIN)
             for the bearer channel if it is transported over Discrete
             Multi-Tone (DMT) symbols with a subcarrier spacing of 8.625
             kHz. The impulse noise protection is expressed in DMT symbols
             with a subcarrier spacing of 8.625 kHz and can take any
             integer value from 0 to 13, inclusive.";
            reference
              "ITU-T G.997.1 clause 7.3.2.17 (INPMIN8_REIN_RTX)";
    
          }
    
          leaf rein-inter-arrival-time-rtx {
            type enumeration {
              enum "0" {
                value 0;
                description
                  "The value 0 indicates an inter-arrival time derived from
                 Repetitive Electrical Impulse Noise (REIN) at 100 Hz.";
              }
              enum "1" {
                value 1;
                description
                  "The value 1 indicates an inter-arrival time derived from
                 Repetitive Electrical Impulse Noise (REIN) at 120 Hz.";
              }
            }
            default "0";
            description
              "If retransmission is used in a given transmit direction, this
             parameter specifies the inter-arrival time that is assumed
             for Repetitive Electrical Impulse Noise (REIN) protection.
             The value 0 indicates an inter-arrival time derived from a
             REIN at 100 Hz. The value 1 indicates an inter-arrival time
             derived from a REIN at 120 Hz. The default is enum 0,
             corresponding to 100 Hz.";
            reference
              "ITU-T G.997.1 clause 7.3.2.18 (IAT_REIN_RTX)";
    
          }
    
          leaf maximum-delay-variation {
            type union {
              type uint8 {
                range "1..254";
              }
              type enumeration {
                enum "unbounded" {
                  value 0;
                  description
                    "Indicates that no delay variation bound is imposed.";
                }
              }
            }
            units "0.1 milliseconds";
            default "unbounded";
            description
              "This parameter specifies the maximum value for the delay
             variation allowed in an On-Line Reconfiguration (OLR)
             procedure. It ranges from 0.1 to 25.4 in steps of 0.1
             milliseconds. A special value (enum unbounded) indicates that
             no delay variation bound is imposed.";
            reference
              "ITU-T G.997.1 clause 7.3.2.9 (DVMAX)";
    
          }
    
          leaf channel-initialization-policy {
            type enumeration {
              enum "0" {
                value 0;
                description "CIpolicy=0.";
              }
              enum "1" {
                value 1;
                description "CIpolicy=1.";
              }
              enum "2" {
                value 2;
                description "CIpolicy=2.";
              }
            }
            default "0";
            description
              "If retransmission is not used in a given transmit direction,
             this parameter indicates which policy will be applied to
             determine the transceiver configuration parameters at
             initialization. The valid values for Channel Initialization
             Policy (CIPOLICY) are 0, 1 and 2. They are defined in the
             respective Recommendations. The default is enum 0,
             corresponding to CIpolicy=0.";
            reference
              "ITU-T G.997.1 clause 7.3.2.10 (CIPOLICY); ITU-T G.993.2
              clause 12.3.7";
    
          }
        }  // grouping impulse-noise-protection-delay-profile
    
        grouping impulse-noise-protection-delay-profile-downstream {
          description
            "The Impulse Noise Protection (INP) Delay profile contains
           INP-Delay parameters for each downstream channel.";
          leaf mdosplit {
            type union {
              type uint8 {
                range "0 | 5..95 | 100";
              }
              type enumeration {
                enum "vendor-discretionary" {
                  value 0;
                  description
                    "Indicates that that the VDSL Transceiver Unit - central
                   Office (VTU-O) is allowed to use a vendor discretionary
                   algorithm.";
                }
              }
            }
            units "percent";
            default "vendor-discretionary";
            description
              "The line configuration parameter MAXDELAYOCTET-split
             (MDOSPLIT) defines the percentage of the MAXDELAYOCTET_ext if
             operating in G.998.4 or MAXDELAYOCTET in other cases
             allocated to the downstream direction. All of the remaining
             MAXDELAYOCTET or MAXDELAYOCTET_ext will be allocated for use
             in the upstream direction. The detailed specification is in
             ITU-T G.993.2 and G.998.4. MDOSPLIT will be expressed as a
             percentage, with valid range from 5 percent to 95 percent
             inclusive, in steps of 1 percent. The value 0% is valid only
             if the maximum downstream interleaving delay is configured
             with the special value S1 and retransmission is disabled in
             the downstream direction. The value 100% is valid only if the
             maximum upstream interleaving delay is configured with the
             special value S1 and retransmission is disabled in the
             upstream direction. A special value (enum
             vendor-discretionary) indicates that the VDSL Transceiver
             Unit - central Office (VTU-O) is allowed to use a vendor
             discretionary algorithm.";
            reference
              "ITU-T G.997.1 clauses 7.3.2.2 and 7.3.1.14 (MDOSPLIT);
              ITU-T G.993.2;
              ITU-T G.998.4";
    
          }
    
          leaf attndr-method {
            type enumeration {
              enum "0" {
                value 0;
                description "Basic method.";
              }
              enum "1" {
                value 1;
                description
                  "Improved method using INP_min0.";
              }
              enum "2" {
                value 2;
                description
                  "Improved method assuming INP_min0=0.";
              }
            }
            default "0";
            description
              "This downstream parameter specifies the method to be used for
             the calculation of the Attainable Net Data Rate (ATTNDR) in
             the downstream and upstream direction. The parameter can take
             three values 0, 1 and 2. The default is enum 0, corresponding
             to the basic method.";
            reference
              "ITU-T G.997.1 clause 7.3.1.15.1 (ATTNDR_METHOD);
              ITU-T G.993.2 clause 11.4.1.1.7";
    
          }
    
          leaf attndr-mdosplit {
            type union {
              type uint8 {
                range "0 | 5..95 | 100";
              }
              type enumeration {
                enum "vendor-discretionary" {
                  value 0;
                  description
                    "Indicates that the VDSL Transceiver Unit - central
                   Office (VTU-O) is allowed to use a vendor discretionary
                   algorithm.";
                }
              }
            }
            units "percent";
            default "vendor-discretionary";
            description
              "The line configuration parameter Attainable Net Data Rate
             MAXDELAYOCTET Split (ATTNDR_MDOSPLIT) defines the percentage
             of the MAXDELAYOCTET_ext if operating in G.998.4 or
             MAXDELAYOCTET in other cases allocated to the downstream
             direction to be used in the improved method for calculation
             of the Attainable Net Data Rate (ATTNDR). All of the
             remaining MAXDELAYOCTET_ext or MAXDELAYOCTET will be
             allocated for use in the upstream direction. The detailed
             specification is in ITU-T G.993.2 and G.998.4.
             The valid values are identical to the values of the line
             configuration parameter MDOSPLIT. A special value
             (enum vendor-discretionary) indicates that the VDSL
             Transceiver Unit - central Office (VTU-O) is allowed to use a
             vendor discretionary algorithm.";
            reference
              "ITU-T G.997.1 clause 7.3.1.15.2 (ATTNDR_MDOSPLIT);
              ITU-T G.993.2;
              ITU-T G.998.4";
    
          }
        }  // grouping impulse-noise-protection-delay-profile-downstream
    
        grouping impulse-noise-protection-delay-profile-upstream {
          description
            "The Impulse Noise Protection (INP) Delay profile contains
           INP-Delay parameters for each upstream channel.";
          leaf mdosplit {
            type union {
              type uint8 {
                range "0 | 5..95 | 100";
              }
              type enumeration {
                enum "vendor-discretionary" {
                  value 0;
                  description
                    "Indicates that that the VDSL Transceiver Unit - central
                   Office (VTU-O) is allowed to use a vendor discretionary
                   algorithm.";
                }
              }
            }
            units "percent";
            default "vendor-discretionary";
            status deprecated;
            description
              "The value of downstream and upstream MAXDELAY0CTET split
             (MDOSPLIT) must add to 100%. As such, configuration of the
             downstream MDOSPLIT is sufficient as the upstream will always
             be 100 minus the downstream MDOSPLIT. For this reason, this
             node has been deprecated.
    
             The line configuration parameter MAXDELAYOCTET-split
             (MDOSPLIT) defines the percentage of the MAXDELAYOCTET_ext
             if operating in G.998.4 or MAXDELAYOCTET in other cases
             allocated to the downstream direction. All of the remaining
             MAXDELAYOCTET or MAXDELAYOCTET_ext will be allocated for use
             in the upstream direction. The detailed specification is in
             ITU-T G.993.2 and G.998.4. MDOSPLIT will be expressed as a
             percentage, with valid range from 5 percent to 95 percent
             inclusive, in steps of 1 percent. The value 0% is valid only
             if the maximum downstream interleaving delay is configured
             with the special value S1 and retransmission is disabled in
             the downstream direction. The value 100% is valid only if the
             maximum upstream interleaving delay is configured with the
             special value S1 and retransmission is disabled in the
             upstream direction. A special value (enum
             vendor-discretionary) indicates that the VDSL Transceiver
             Unit - central Office (VTU-O) is allowed to use a vendor
             discretionary algorithm.";
            reference
              "ITU-T G.997.1 clauses 7.3.2.2 and 7.3.1.14 (MDOSPLIT);
              ITU-T G.993.2;
              ITU-T G.998.4";
    
          }
    
          leaf attndr-method {
            type enumeration {
              enum "0" {
                value 0;
                description "Basic method.";
              }
              enum "1" {
                value 1;
                description
                  "Improved method using INP_min0.";
              }
              enum "2" {
                value 2;
                description
                  "Improved method assuming INP_min0=0.";
              }
            }
            default "0";
            status deprecated;
            description
              "Attainable Net Data Rate Method (ATTNDR_METHOD) is only valid
             for the downstream direction and is now deprecated for the
             upstream. Any configured value for upstream ATTNDR_METHOD is
             to be ignored.
    
             This downstream parameter specifies the method to be used for
             the calculation of the Attainable Net Data Rate (ATTNDR) in
             the downstream and upstream direction. The parameter can take
             three values 0, 1 and 2. The default is enum 0, corresponding
             to the basic method.";
            reference
              "ITU-T G.997.1 clause 7.3.1.15.1 (ATTNDR_METHOD);
              ITU-T G.993.2 clause 11.4.1.1.7";
    
          }
    
          leaf attndr-mdosplit {
            type union {
              type uint8 {
                range "0 | 5..95 | 100";
              }
              type enumeration {
                enum "vendor-discretionary" {
                  value 0;
                  description
                    "Indicates that the VDSL Transceiver Unit - central
                   Office (VTU-O) is allowed to use a vendor discretionary
                   algorithm.";
                }
              }
            }
            units "percent";
            default "vendor-discretionary";
            status deprecated;
            description
              "Attainable Net Data Rate MAXDELAYOCTET Split
             (ATTNDR_MDOSPLIT) is only valid for the downstream direction
             and is now deprecated for the upstream. Any configured value
             for upstream ATTNDR_MDOSPLIT is to be ignored.
    
             The line configuration parameter ATTNDR_MDOSPLIT defines
             the percentage of the MAXDELAYOCTET_ext if operating in
             G.998.4 or MAXDELAYOCTET in other cases allocated to the
             downstream direction to be used in the improved method
             for calculation of the ATTNDR. All of the remaining
             MAXDELAYOCTET_ext or MAXDELAYOCTET will be allocated for
             use in the upstream direction. The detailed specification is
             in ITU-T G.993.2 and G.998.4. The valid values are identical
             to the values of the line configuration parameter MDOSPLIT.
             A special value (enum vendor-discretionary) indicates that
             the VDSL Transceiver Unit - central Office (VTU-O) is allowed
             to use a vendor discretionary algorithm.";
            reference
              "ITU-T G.997.1 clause 7.3.1.15.2 (ATTNDR_MDOSPLIT);
              ITU-T G.993.2;
              ITU-T G.998.4";
    
          }
        }  // grouping impulse-noise-protection-delay-profile-upstream
      }  // submodule bbf-vdsl-impulse-noise-protection-delay-profile-body
    

© 2023 YumaWorks, Inc. All rights reserved.