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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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Using an NQA Test Instance to Detect a 3G or LTE Link

Using an NQA Test Instance to Detect a 3G or LTE Link

Context

When a 3G or LTE link is unstable because of weak 3G or LTE signals or interference, you may fail to access external networks through the 3G or LTE link even if the dialup succeeds. To solve this problem, configure the device to use an NQA test instance to detect the 3G or LTE link status. When the 3G or LTE link is unstable, the device triggers an action to recover the 3G or LTE link.
NOTE:

The reset counters interface cellular [ interface-number ] command to clear statistics on the 3G cellular interface is advised. Otherwise, the detection result may be inaccurate.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface cellular interface-number

    The LTE cellular interface view is displayed.

  3. Run modem auto-recovery track nqa admin-name test-name [ probe-cycle period ]

    The device is configured to use an NQA test instance to detect a 3G or LTE link.

    By default, a device does not use an NQA test instance to detect a 3G or LTE link.

    The NQA test instance used in this step must be an ICMP NQA test instance. For details about how to configure such a test instance, see Configuring an ICMP Test Instance in the Huawei AR100&AR120&AR150&AR160&AR200&AR1200&AR2200&AR3200&AR3600 Series Enterprise Routers Configuration Guide - Network Management Configuration.

  4. Run modem auto-recovery track action { plmn-search | modem-reboot } fail-times times

    The maximum number of 3G or LTE detection failures in an NQA test instance is set. When the number of consecutive 3G or LTE link detection failures in an NQA test instance reaches the maximum value, the device triggers an action to recover the 3G or LTE link.

    By default, the maximum number of 3G or LTE link detection failures in an NQA test instance is not configured. That is, the device does not trigger an action to recover a 3G or LTE link when 3G or LTE link detection fails for several consecutive times.

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Updated: 2019-03-06

Document ID: EDOC1100069331

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