What's the Function of MA5683T and MA5680T?

'The MA5623AR extended subrack can be considered as the extension service board for the
primary subrack of the MA5680T/MA5683T. The primary subrack manages the MA5623AR
extended subrack in the same way as it manages its service boards. The MA5623AR extended
subrack provides the same functions as the VDSL2 board of the primary subrack. It connects to
the ETHB board through the GE upstream port, cascading the primary subrack.
The MA5623AR extended subrack supports the following functions:

•  48-channel VDSL2 access service.
• Vectoring.
• Port protection
• 2-pair VDSL2 bonding when the 8a, 8b, 8c, or 8d profile is used.
• Single-ended loop test (SELT)
• Metallic loop test (MELT)
• VDSL2 8a, 8b, 8c, 8d, 12a, 12b, and 17a profiles
• G.992.1 Annex A, G.992.3 Annex A/B/L/M, G.992.5 Annex A/B/M, G.993.2 Annex A/B
• G.INP physical layer retransmission

NOTE
In bonding mode, the G.INP physical-layer retransmission is not supported.

• Temperature query and high-temperature alarm
• Automatic power shutdown in case of a high temperature

NOTE
The MA5623AR extended subrack supports –48/–60 V DC and 220 V AC input power. The MA5623AR extended subrack that supports 220 V AC input power is used as an example in the following figure.

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VDSL Line Profile Configuration -- display vdsl line-template(tr129)

Function

This command is used to query the configuration of VDSL2 line templates in the system.

Format

display vdsl line-template [ info | template-index ]

Parameters

Parameter	Description	Value
info	Queries the IDs and names of all VDSL2 line templates.	-
template-index	Indicates the ID of a VDSL2 line template. When querying a VDSL2 line template, you can specify a template number or not. If you specify it, the system displays the details of the specified template. If you do not specify it, the system displays the information about all templates in the system.	Numeral type. Range: For SCUN/SCUK board: 1-2048, for other control boards: 1-770.

Modes

Privilege mode, VDSL mode

Level

Operator level

Usage Guidelines

• Run the config command to enter global config mode, and then run the interface vdsl command to enter VDSL mode.
• Each VDSL2 line supports up to 2 channels.

Example

To query the information about all VDSL2 line templates, do as follows:

huawei#display vdsl line-template                                       
{ <cr>|info<K>|template-index<L><1,770> }:                                              
                                                                                
  Command:                                                                      
          display vdsl line-template                                            
  ------------------------------------------------------------------------------
    Template  Template         Line Profile  Channel1       Channel2       Ref
    Index     Name             Index         Profile Index  Profile Index  Times
  ------------------------------------------------------------------------------
           1  DEFVAL                      1              1              -     48
           2  VDSL LINE TEMPLA            1              1              -      0
              TE 2
           3  VDSL LINE TEMPLA            1              1              -      0
              TE 3
           4  VDSL LINE TEMPLA            1              1              -      0
              TE 4
  ------------------------------------------------------------------------------
  Total: 4                                                                

To query the details of VDSL2 line template 2, do as follows:

huawei#display vdsl line-template                                    
{ <cr>|info<K>|template-index<L><1,770> }:2                                
                                                                                
  Command:                                                                      
          display vdsl line-template 2                                          
  ------------------------------------------------------------------------------
  Template index: 2     Name: VDSL LINE TEMPLATE 2                              
  Line profile index                          : 1                               
  Channel1 profile index                      : 2                               
  Channel1 rate adaptation ratio downstream   : 100
  Channel1 rate adaptation ratio upstream     : 100
  ------------------------------------------------------------------------------

To query the IDs and names of all VDSL2 line templates in the system, do as follows:

huawei#display vdsl line-template                                    
{ <cr>|info<K>|template-index<L><1,770> }:info                             
                                                                                
  Command:                                                                      
          display vdsl line-template info                                       
  ------------------------------------------------------------------------
  Template  Template
  Index     Name
  ------------------------------------------------------------------------
        1  DEFVAL
  ------------------------------------------------------------------------

System Response

• The system displays the queried result when the command runs successfully.
• The following table describes the parameters in response to the display vdsl line-template command.

  Parameter	Description
  Line profile index	Indicates the number of the VDSL2 line profile bound to the VDSL2 line template. Each VDSL2 line template must be bound with a VDSL2 line profile.
  Channel1 profile index	Indicates the VDSL2 channel profile bound to channel 1.
  Channel2 profile index	Indicates the VDSL2 channel profile bound to channel 2.
  Ref Times	Indicates the count that a VDSL2 line template is referenced by ports.

• The following table describes the parameters in response to the display vdsl line-template 2 command.

  Parameter	Description
  Line profile index	Indicates the number of the VDSL2 line profile bound to the VDSL2 line template. Each VDSL2 line template must be bound with a VDSL2 line profile.
  Channel1 profile index	Indicates the VDSL2 channel profile bound to channel 1.
  Channel2 profile index	Indicates the VDSL2 channel profile bound to channel 2.
  Channel1/Channel2 rate adaptation ratio downstream	Indicates the self-adaptation carry ratio of channel 1 downstream rate to channel 2 downstream rate. When the line rate self-adaptation mode is dynamic and the line is in good condition, if the line current activation rate exceeds the set target rate, the redundant rate can be carried in different channels. Each channel can carry part or all of the redundant rate. The ratio determines how much rate each channel shall carry.
  Channel1/Channel2 rate adaptation ratio upstream	Indicates the self-adaptation carry ratio of channel 1 upstream rate to channel 2 upstream rate. When the line rate self-adaptation mode is dynamic and the line is in good condition, if the line current activation rate exceeds the set target rate, the redundant rate can be carried in different channels. Each channel can carry part of or all redundant rates. The ratio determines how much rate each channel shall carry.

• The following table describes the parameters in response to the display vdsl line-template info command.

  Parameter	Description
  Template Index	Indicates the index of the VDSL2 line profile bound to the VDSL2 line template. Each VDSL2 line template must be bound with a VDSL2 line profile.
  Template Name	Indicates the name of the VDSL2 line profile bound to the VDSL2 line template. Each VDSL2 line template must be bound with a VDSL2 line profile.

• For more information about the error message that the system displays against a command entered with incorrect syntax

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ont-profile modify(distributing-mode)

Function

This command is used to modify an ONT capability set profile. When the configuration data of a profile does not meet the requirements, run the command to modify the profile.

Format

ont-profile modify { profile-id profile-id | profile-name profile-name }

Parameters

Parameter	Description	Value
profile-id profile-id	Indicates the ID of the ONT(such as HG8245H) capability set profile. It identifies a capability set profile uniquely. When you need to modify a capability set profile by profile ID, use this parameter.	Numeral type. Range: 17-128.
profile-name profile-name	Indicates the name of the ONT capability set profile. When you need to modify a capability set profile by profile name, use this parameter.	Character string type, a string of 1-63 characters.

Modes

Global config mode, Diagnose mode

Level

Operator level

Usage Guidelines

• In the privilege mode or global config mode, run the diagnose command to enter the Diagnose mode.
• You are recommended to use this command in the global config mode.
• The system default profiles include the multi-dwelling unit (MDU) profile, and the profile for the common ONTs. They are numbered from 1 to 16. The reserved profile numbers of the 16 profiles are null and can be added according to requirements. Currently, the system has four default ONT capability set profiles. The default profiles cannot be modified or deleted.
• The profile bound with an ONT cannot be modified or deleted.

Example

To modify the mapping mode of ONT capability set profile 17 to 802_1pPRI, do as follows:

huawei(config)#ont-profile modify
{ profile-id<K>|profile-name<K> }:profile-id
{ profile-id<U><17,128> }:17

  Command:
          ont-profile modify profile-id 17
  Press 'Q' or 'q' to quit input                                                
>  Are you sure you want to set the number of POTS ports to auto-adaptive? (y/n)
 [n]:y                                                                     
  Are you sure you want to set the number of ETH ports to auto-adaptive? (y/n)
[n]:y                                                                      
>  Are you sure you want to set the number of VDSL ports to auto-adaptive? (y/n)
[n]:y  
>  TDM port type<1-E1,2-T1> [1]:                                                
>  TDM service type<1-TDMoGEM> [1]:                                             
>  Number of TDM ports<0-8> [0]:                                                
>  Number of MOCA ports<0-8> [0]:                                               
>  Are you sure you want to set the number of CATV UNI ports to auto-adaptive? (
y/n) [n]:                                         
>  Number of CATV UNI ports<0-8> [0]:                                           
>  Mapping mode<1-VLANID, 2-802_1pPRI, 3-VLANID_802_1pPRI, 4-PORTID,            
   5-PORTID_VLANID, 6-PORTID_802_1pPRI, 7-PORTID_VLANID_802_1pPRI,
   9-IPTOS, 10-VLANID_IPTOS> [1]:2                                              
>  The type of flow control<1-PQ, 2-GEMPORT-CAR, 3-FLOW-CAR> [1]:               
  Modifying an ONT profile succeeded 

System Response

• The system displays the message "Modifying an ONT profile succeeded" after an ONT capability set profile is modified successfully.
• The following table describes the parameters in response to this command.

  Parameter	Description
  Are you sure you want to set the number of POTS ports to auto-adaptive? (y/n) [n]:	Indicates whether to set the number of plain old telephone service (POTS) ports to adaptive. y: Sets the number of POTS ports to adaptive so that the number of POTS ports is set based on the actual number on the ONT n: Sets the number of POTS ports to non-adaptive so that the number of POTS ports is set in a subsequent step.
  Number of POTS ports	Indicates the number of the POTS ports. The configured value must be the same as the number of the actual POTS ports.
  Are you sure you want to set the number of ETH ports to auto-adaptive? (y/n) [n]:	Indicates whether to set the number of Ethernet ports to adaptive. y: Sets the number of Ethernet ports to adaptive so that the number of Ethernet ports is set based on the actual number on the ONT n: Sets the number of Ethernet ports to non-adaptive so that the number of Ethernet ports is set in a subsequent step.
  Number of ETH ports	Indicates the number of the ETH ports. The configured value must be the same as the number of the actual ETH ports.
  Are you sure you want to set the number of VDSL ports to auto-adaptive? (y/n) [n]:	Indicates whether to set the number of VDSL ports to adaptive. y: Sets the number of VDSLt ports to adaptive so that the number of Ethernet ports is set based on the actual number on the ONT n: Sets the number of VDSL ports to non-adaptive so that the number of Ethernet ports is set in a subsequent step.
  Number of VDSL ports	Indicates the number of the VDSL ports. The configured value must be the same as the number of the actual VDSL ports.
  TDM port type	Indicates the TDM port type. It can be E1 or T1 type.
  TDM service type	Indicates the TDM service type. It can be TDMoGEM type only.
  Number of TDM ports	Indicates the number of the TDM ports. The configured value must be the same as the number of the actual TDM ports.
  Number of MOCA ports	Indicates the number of the MOCA ports. The configured value must be the same as the number of the actual MOCA ports.
  Are you sure you want to set the number of CATV UNI ports to auto-adaptive? ( y/n) [n]:	Indicates whether to set the number of CATV UNI ports to adaptive. y: Sets the number of CATV UNI ports to adaptive so that the number of CATV UNI ports is set based on the actual number on the ONT n: Sets the number of CATV UNI ports to non-adaptive so that the number of CATV UNI ports is set in a subsequent step.
  Number of CATV UNI ports	Indicates the number of the CATV UNI ports. The configured value must be the same as the number of the actual CATV UNI ports.
  Mapping mode	Indicates the mapping mode between the service flow and the GEM port. In the single bridge mode, it can be set to mapping based on VLAN, mapping based on 802.1p priority, or mapping based on VLAN+802.1p priority. By default, the mapping mode is mapping based on VLAN. In the multi-bridge mode, it can be set to mapping based on port ID. ONT mapping modes include the following categories: Category 1: mapping based on VLAN, mapping based on 802.1p priority, and mapping based on VLAN+802.1p priority. Category 2: mapping based on port ID, mapping based on port ID+VLAN, mapping based on port ID+802.1p priority, and mapping based on port ID+VLAN+802.1p priority Category 3: mapping based on IP ToS Category 4: mapping based on VLAN+IP ToS These 4 mapping categories are mutually exclusive on the same ONT, but mapping modes of the same category can be configured on the same ONT. For example, if the ONT mapping mode is set to mapping based on VLAN, the mapping between the GEM port and service flow can be set to mapping based on VLAN, mapping based on 802.1p priority, or mapping based on VLAN+802.1p priority.
  The type of flow control	Indicates the type of the flow control.

• For more information about the error message that the system displays against a command entered with incorrect syntax

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Prewarning for High Memory Usage of the MA5600T

[Fault Description]

Trigger conditions:

The N2510 periodically measures MA5600T performance.

Symptom:

The MA5600T is of high memory usage. The result queried by running the display mem f/s command shows that the memory usage of the active control board is much higher than that of the standby control board.

Identification method:

1. After a period of time, such as 24 hours or 48 hours, run the display mem 0/9 command to query the memory usage of the control board. It is found that the memory usage increases.

2. Compare the memory usage of the active control board with that of the standby control board to determine whether the memory usage of the active control board is high.

[Root Cause]

The N2510 periodically obtains the data of the xDSL line profile. When the N2510 obtains the data of the VDSL mode profile (vdsl2LineConfProfModeSpecTable), the MA5600T encounters a performance-related problem. As a result, the memory usage of the active control board decreases and cannot recover in time.

[Impact and Risk]

After a long period of time, the memory of the active control board is exhausted and the OLT cannot be managed by the NMS.

[Measures and Solutions]

Recovery measures:

If the memory usage of the control board is higher than 85%, run the following command to perform active/standby switchover to transfer services from the active control board to the standby board.

MA5600T(config)#system switch-over

Preventive measures:

This issue will be resolved in MA5600T V800R007C00SPC310（2010-12-10） and later versions.

[Rectification Scope and Time Requirements]

None

[Notice Expiration]

This notice automatically expires in versions later than MA5600T V800R007C00SPC310.

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