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CLI-based Configuration Guide - Interface Management

AR100, AR120, AR160, AR1200, AR2200, AR3200, and AR3600 V300R003

This document provides the basic concepts, configuration procedures, and configuration examples of the interfaces supported by the device.
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Example for Connecting a VDSL Interface Working in ATM Mode to the Internet

Example for Connecting a VDSL Interface Working in ATM Mode to the Internet

Networking Requirements

As shown in Figure 17-2, multiple hosts in Enterprise A access an enterprise gateway. The router accesses a DSLAM over a VDSL line.

Enterprise A requires a data access solution that is easy to deploy and provides high-speed downstream transmission to meet requirements of data and video services. To meet these service requirements, the carrier provides a VDSL line for Enterprise A so that the router can connect to the DSLAM by using a VDSL interface.

Figure 17-2  VDSL networking diagram

Configuration Roadmap

The configuration roadmap is as follows:
  1. Deactivate a VDSL interface.
  2. Set the same parameters on the device as those of the DSLAM. Parameters for the VDSL interface on the DSLAM: The transmission standard auto is used, bit exchange and trellis coding are enabled, and seamless rate adaptation are disabled.
  3. Activate the VDSL interface.

The VDSL interface working in ATM mode is used as an example. The VDSL interface working in ATM mode has the similar configuration roadmap with this example.


  1. Set the working mode for VDSL interfaces on the device to ATM.

    <Huawei> system-view
    [Huawei] sysname Router
    [Router] set workmode slot 1 vdsl atm
    Warning: Changing the working mode will reset the board in slot 1. Continue? [y/
    INFO: Resetting board[1] succeeded.

    By default, a VDSL interface works in PTM mode.

  2. Deactivate ATM1/0/0.

    [Router] interface atm 1/0/0
    [Router-Atm1/0/0] shutdown

  3. Configure the transmission standard auto for the VDSL interface.

    [Router-Atm1/0/0] adsl standard auto

  4. Enable bit exchange on the VDSL interface.

    [Router-Atm1/0/0] adsl bitswap on

  5. Disable seamless rate adaptation on the VDSL interface.

    [Router-Atm1/0/0] adsl sra off

  6. Enable trellis coding on the VDSL interface.

    [Router-Atm1/0/0] adsl trellis on

  7. Activate ATM1/0/0.

    [Router-Atm1/0/0] undo shutdown
    [Router-Atm1/0/0] quit

  8. Verify the configuration.

    # Check the training status, transmission standard, line status, performance statistics, bit exchange status, seamless rate adaptation status, trellis coding status, and board version of the VDSL interface.

    [Router] display dsl interface atm 1/0/0
     DSL driver and PHY status
          Training Status                      : Showtime
          Transmission Mode                    : ADSL2
          Line Status                          : No Defect
          Downstream max. attainable rate(Kbps): 8740
          Upstream max. attainable rate(Kbps)  : 703
          Downstream actual net data rate(Kbps): 4399
          Upstream actual net data rate(Kbps)  : 570
          Downstream SNR margin(dB)            : 28.8
          Upstream SNR margin(dB)              : 27.0
          Downstream attenuation(dB)           : 0.0
          Upstream attenuation(dB)             : 0.0
          Downstream output power(dBm)         : 7.5
          Upstream output power(dBm)           : -4.8
          Downstream total cells               : 826623466
          Upstream total cells                 : 413437274
          Downstream data cells                : 672651340
          Upstream data cells                  : 246036145
          Downstream bit errors                : 0
          Upstream bit errors                  : 0
          Total drop cells                     : 0
          Downstream total ES count            : 0
          Upstream total ES count              : 0
          Downstream total SES count           : 0
          Upstream total SES count             : 0
          Downstream total UAS count           : 31
          Upstream total UAS count             : 31
          Total AS count                       : 6820
     Line modulations
          G.Dmt                                : Enabled
          T1.413                               : Enabled
          ADSL2                                : Enabled
          AnnexL                               : Enabled
          ADSL2+                               : Enabled
          AnnexM                               : Enabled
     Line capability
          Bitswap                              : On
          SRA                                  : Off
          Trellis coding                       : On
     Board version
          vendor ID                            : BDCM:0x938f                                                                            
          vendor number                        : 0x938f  
          vendor ID                            : 0xB5 0 "BDCM" 0 0
          vendor serial                        : 10000000000000000000000000000000
          Board ID                             : 963168MBV_17A
          Software version                     : 4.12L.08
          Bootloader (CFE) version             : 1.0.38-112.118
          DSL PHY and driver version           : A2pvbF038j.d24h
          Build timestamp                      : 20130706_1814

    # Check the configuration and status of a VDSL interface.

    [Router] display interface atm 1/0/0
    Atm1/0/0 current state : UP
    Line protocol current state : UP
    Last line protocol up time : 2012-03-14 13:49:37
    Description:HUAWEI, AR Series, Atm1/0/0 Interface
    Route Port,The Maximum Transmit Unit is 1500
    Internet protocol processing : disabled
    AAL enabled: AAL5, Maximum PVCs: 16
    PVCs on main-interface: 0 (Total PVCs: 1)
    Last physical up time   : 2012-03-14 13:49:37
    Last physical down time : 2012-03-14 13:49:09
    Current system time: 2012-03-14 16:58:58
    Port PHY type    : VDSL
    The physical up times since the system startup : 1
    Last 300 seconds input rate 120 bits/sec, 0 packets/sec
    Last 300 seconds output rate 1112344 bits/sec, 1311 packets/sec
    Input:  469180146 packets, 49174924889 bytes
      OAM Cells:              47700,  ASM Cells:                   0
      Packet Errors:              0,  Packet Discards:              0
      Cell Errors:            561137
    Output:  94834890 packets, 10052499551 bytes
      OAM Cells:                  0,  ASM Cells:                   0
      Packet Errors:              0,  Packet Discards:              0 
        Input bandwidth utilization  : 0.01%
        Output bandwidth utilization : 4.33% 

Configuration Files

  • Configuration file of the Router
     sysname Router
     set workmode slot 1 VDSL atm  
    interface Atm1/0/0
Updated: 2019-03-06

Document ID: EDOC1100069331

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