Using an NQA Test Instance to Detect a 3G or LTE Link
Context
You are advised to run the reset counters interface cellular [ interface-number ] command every second to clear statistics on the 3G cellular interface. Otherwise, the detection result may be inaccurate.
Procedure
- Run the system-view command to enter the system view.
- Run the interface cellular interface-number command to enter the LTE cellular interface view.
- Run the modem auto-recovery track { nqa admin-name test-name | nqa-group group-name } [ probe-cycle period | probe-cycle seconds period-s ] command to configure the device to use an NQA or NQA group test instance to detect a 3G or LTE link.
By default, a device does not use an NQA or NQA group test instance to detect a 3G or LTE link.
Only V300R019C10 and later versions support nqa-group group-name parameter.
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 NetEngine AR Configuration Guide - Network Management Configuration.
- Run the modem auto-recovery track action { plmn-search | modem-reboot | redial } fail-times times command to set the maximum number of 3G or LTE detection failures in an NQA test instance. 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.