There is only one switch, how to realize the nqa of master-slave automatic switching

The configuration used here is: static routing and NQA linkage

To learn more about what NQA is, check out this article: What is NQA (Network Quality Analysis)?How does NQA work?- Huawei

Cite the diagram in the text:

The following is how to configure and related instructions:

#Create a nqa test instance, the test management account name is admin, and the test instance name is test_icmp[HUAWEI]nqa test-instance admin test_icmp#Test type is icmp protocol test[HUAWEI-nqa-admin-bjyh_icmp]test-type icmp#Detection interval 10s[HUAWEI-nqa-admin-bjyh_icmp]frequency 10number of tests 4[HUAWEI-nqa-admin-bjyh_icmp]probe-count 4The probed address is 10.0.0.1[HUAWEI-nqa-admin-bjyh_icmp]destination-address ipv4 10.0.0.1Start a test instance[HUAWEI-nqa-admin-bjyh_icmp]start nowWarning: It is recommended that the frequency be greater than 18. Otherwise, the test result may be incorrect.(Frequency greater than 18 is recommended. Otherwise, the test results may be incorrect.)#Configure the default route and NQA linkage, the main line is normal, the next hop is 10.0.0.1, the main line is abnormal, the backup line is used, and the next hop is 10.1.0.1#The default priority value is 60, so the priority value of the standby line should be set greater than 60#Need to specify the vlanif outbound interface[HUAWEI]ip route-static 172.18.1.37 255.255.255.255 Vlanif10 10.0.0.1 track nqa admin test_icmp[HUAWEI]ip route-static 172.18.1.37 255.255.255.255 Vlanif20 10.1.0.1 preference 70