How do I configure and view the maximum number of NQA historical records on the AR router

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By default, each NQA test instance has 50 historical records.

Command: records history
For example, set the maximum number of historical records of the NQA test instance user test to 30.
[Huawei] nqa test-instance user test
[Huawei-nqa-user-test] test-type icmp
[Huawei-nqa-user-test] records history 30 (The value ranges from 1 to 10, and the default value is 5.)

-Query command:
Run the display nqa-parameter command in the NQA view. The value of the records history field is the maximum number of historical records of the NQA test instance.

Other related questions:
How do I configure and view the maximum number of NQA result records on the AR router
By default, each NQA test instance has five records. Command: records result For example, set the maximum number of records of the NQA test instance user test to 3. [Huawei] nqa test-instance user test [Huawei-nqa-user-test] test-type icmp [Huawei-nqa-user-test] records result 3 (The value ranges from 1 to 10, and the default value is 5.) -Query command: Run the display nqa-parameter command in the NQA view. The value of the records result field is the maximum number of records of the NQA test instance.

How do I configure NQA on the AR router
The procedure for configuring NQA on the AR router is as follows: 1. Run the system-view command to enter the system view. 2. Run the nqa test-instance command to create an NQA test instance. 3. Run the test-type command to configure the type of the NQA test instance. 4. Configure mandatory parameters based on the type of the NQA test instance. (For the NQA test instance of ICMP, the destination IP address needs to be specified. For the NQA test instance of DHCP, the source interface for sending DHCP Request messages needs to be specified. For the NQA test instance of DNS, the destination domain name needs to be specified. 5. Configure optional parameters as needed, for example, test period and timeout interval. 6. Configure association. The NQA test instance can be associated with VRRP and static route.

How do I view login records of L2TP VPN users on the AR router
You cannot view login records of L2TP VPN users on the AR router.

Example for associating a static route with NQA on the AR router
Requirements: There are two egresses from the AR to the destination network segment. By default, services are transmitted through the primary egress. If the primary egress fails, services are switched to the backup egress. Because intermediate devices are deployed, the AR may not detect the fault of the intermediate link or device. In this case, services cannot be immediately switched to the backup link, causing service interruptions. The procedure for associating NQA with static route on the AR router is as follows: 1. Configure an NQA test instance of ICMP. 2. Associate the static route with the NQA test instance. Example: Associate the static route with the NQA test instance admin test. When the destination IP address is unreachable, the static route is ineffective. [HUAWEI] nqa test-instance admin test //The test instance administrator is admin. Associate the static route with the NQA test instance and the test instance name is test. The two parameters can be user-defined. [HUAWEI-nqa-admin-test] test-type icmp //Configure the NQA test instance of ICMP. [HUAWEI-nqa-admin-test] destination-address ipv4 192.168.10.1 //Configure the destination address of the NQA test instance. [HUAWEI-nqa-admin-test] frequency 10 //Configure the interval between two tests. [HUAWEI-nqa-admin-test] probe-count 2 //Configure the probe count. [HUAWEI-nqa-admin-test] start now //Start the NQA test instance immediately. [HUAWEI-nqa-admin-test] q [HUAWEI] ip route-static 10.0.0.0 255.255.0.0 192.168.0.254 track nqa admin test //sociate the static route with the NQA test instance. [HUAWEI] ip route-static 10.0.0.0 255.255.0.0 192.168.1.254 preference 80 //Configure the static route of 10.0.0.0/16 and set the priority to 80.

Do VRRP configuration and NQA configuration on an AR router conflict
On an AR router, use VRRP and NQA association to detect uplink faults and switch over between master/backup gateways. The configurations do not conflict. For details about the configuration, see the URL: Example for Configuring Association Between VRRP and NQA to Monitor the Uplink Status.

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