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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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Configuring an E1-IMA Interface

Configuring an E1-IMA Interface

An E1-IMA interface allows ATM cells to transmit over the E1-IMA links.

Applicable Scenario

To transmit ATM cells over a single E1-IMA link, configure attributes of the E1-IMA interfaces on both ends of the E1-IMA link.

By default, these attributes of the E1-IMA interface have default values. To modify the attributes, perform the following operations.


You can create PVC, specify service type, and configure parameters for the E1-IMA link. For details, see ATM Configuration in the Huawei AR100&AR120&AR150&AR160&AR200&AR1200&AR2200&AR3200&AR3600 Series Enterprise Routers Configuration Guide - WAN Configuration.

Pre-configuration Tasks

Before configuring an E1-IMA interface, complete the following task:

  • Register the 4E1-IMA card successfully.


  1. Run system-view

    The system view is displayed.

  2. Run interface atm interface-number

    The E1-IMA interface view is displayed.

  3. Run clock { master | slave }

    The clock mode of an E1-IMA interface is configured.

    By default, the clock mode of an E1-IMA interface is slave.


    When the router is connected to the peer device through E1-IMA interfaces, one E1-IMA interface must work in master clock mode and the other must work in slave clock mode.

  4. Run frame-format { crc4-adm | no-crc4-adm }

    The frame format of an E1-IMA interface is configured.

    By default, the frame format of an E1-IMA interface is No-CRC4 ADM.

  5. Run scramble

    The payload scramble function is enabled on the E1-IMA interface.

    By default, the payload scramble function is enabled on the E1-IMA interface.

  6. Run loopback { local | payload | remote }

    The loopback mode of an E1-IMA interface is configured.

    By default, loopback detection is disabled.

Verifying the Configuration

  • Run the display interface atm [ interface-number ] command to check the configuration and status of an ATM interface.

Updated: 2019-03-06

Document ID: EDOC1100069331

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