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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 Configuring an IMA Group

Example for Configuring an IMA Group

Networking Requirements

As shown in Figure 19-3, RouterA and RouterB are connected by two E1-IMA links.

On a large enterprise network, a single link fails to support transmission of a large number of services. To ensure data transmission, users require high bandwidth.

Figure 19-3  Networking diagram for configuring an IMA group

Configuration Roadmap

The configuration roadmap is as follows:
  1. Add the E1-IMA links to an IMA group.
  2. Configure the E1-IMA interface on RouterA to work in master clock mode and the E1-IMA interface on RouterB to work in slave clock mode and use default values for other attributes so that RouterA and RouterB on the E1-IMA link can communicate.
  3. Configure RouterA' to use Common Transmit Clock Configuration (CTC) of link 0, and RouterB to use Independent Transmit Clock Configuration (ITC) to meet higher bandwidth requirement.

Procedure

  1. Configure RouterA.

    # Create an IMA group.

    <Huawei> system-view
    [Huawei] sysname RouterA
    [RouterA] interface ima-group 2/0/0
    [RouterA-Ima-group2/0/0] quit
    

    # Add E1-IMA interfaces to the IMA group.

    [RouterA] interface atm 2/0/0
    [RouterA-ATM2/0/0] ima ima-group 2/0/0
    [RouterA-ATM2/0/0] clock master
    [RouterA-ATM2/0/0] quit
    [RouterA] interface atm 2/0/1
    [RouterA-ATM2/0/1] ima ima-group 2/0/0
    [RouterA-ATM2/0/1] clock master
    [RouterA-ATM2/0/1] quit

    # Configure attributes of the IMA group.

    [RouterA] interface ima-group 2/0/0
    [RouterA-Ima-group2/0/0] ima-clock ctc link-number 0
    [RouterA-Ima-group2/0/0] quit
    

  2. Configure RouterB.

    # Create an IMA group.

    <Huawei> system-view
    [Huawei] sysname RouterB
    [RouterB] interface ima-group 2/0/0
    [RouterB-Ima-group2/0/0] quit
    

    # Add E1-IMA interfaces to the IMA group.

    [RouterB] interface atm 2/0/0
    [RouterB-ATM2/0/0] ima ima-group 2/0/0
    [RouterB-ATM2/0/0] clock slave
    [RouterB-ATM2/0/0] quit
    [RouterB] interface atm 2/0/1
    [RouterB-ATM2/0/1] ima ima-group 2/0/0
    [RouterB-ATM2/0/1] clock slave
    [RouterB-ATM2/0/1] quit

    # Configure attributes of the IMA group.

    [RouterB] interface ima-group 2/0/0
    [RouterB-Ima-group2/0/0] ima-clock itc
    [RouterB-Ima-group2/0/0] quit
    

  3. Verify the Configuration

    # Run the display interface ima-group command on RouterA to check the IMA binding information.

    [RouterA] display interface Ima-group 2/0/0                                    
    Ima-group2/0/0 current state : UP                                               
    Line protocol current state : UP                                                
    Last line protocol up time : 2016-01-10 06:00:46 UTC-05:13                      
    Description:HUAWEI, AR Series, Ima-group2/0/0 Interface                         
    Route Port,The Maximum Transmit Unit is 1500                                    
    Internet protocol processing : disabled                                         
    AAL enabled: AAL5, Maximum PVCs: 8                                              
    PVCs on main-interface: 0 (Total PVCs: 0)                                       
    Current system time: 2016-01-10 06:11:17-05:13                                  
    Physical layer is ATM over IMA                                                  
     Maximum allowed differential delay is: 25ms, Minimum required active links num:
     1                                                                              
     Tx frame length: 128, symmetry: symmetrical configuration and operation        
     Ne Tx clock mode CTC, configured timing reference link is Atm2/0/0             
     Ima protocol version: Version 1.1                                              
     Ima group near-end state is: operational                                       
     Ima group far-end state is: operational                                        
      LinkName Atm2/0/0                                                             
       NeLink TxLid 0, Tx Link state is active                                      
       NeLink RxLid 0, Rx link state is active                                      
       FeLink TxLid 0, Tx Link state is active                                      
       FeLink RxLid 0, Rx link state is active                                      
       Defect: NONE                                                                 
      LinkName Atm2/0/1                                                             
       NeLink TxLid 1, Tx Link state is active                                      
       NeLink RxLid 1, Rx link state is active                                      
       FeLink TxLid 1, Tx Link state is active                                      
       FeLink RxLid 1, Rx link state is active                                      
       Defect: NONE                                                                 
    Last 10 seconds input rate 0 bytes/sec 0 bits/sec 0 packets/sec                 
    Last 10 seconds output rate 0 bytes/sec 0 bits/sec 0 packets/sec                
                                                                                    
    Input: 0 packets, 0 bytes                                                       
    Output: 0 packets, 0 bytes                                                      
        Input bandwidth utilization  :    0%                                        
        Output bandwidth utilization :    0%  

Configuration Files

  • Configuration file of RouterA

    #
    sysname RouterA
    #
    interface atm 2/0/0
     ima ima-group 2/0/0
     clock master
    #
    interface atm 2/0/1
     ima ima-group 2/0/0
     clock master
    #
    interface ima-group 2/0/0
     ima-clock ctc link-number 0
    #
    return
  • Configuration file of RouterB

    #
    sysname RouterB
    #
    interface atm 2/0/0
     ima ima-group 2/0/0
    #
    interface atm 2/0/1
     ima ima-group 2/0/0
    #
    interface ima-group 2/0/0
     ima-clock itc
    #
    return
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Updated: 2019-03-06

Document ID: EDOC1100069331

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