130 
[SwitchA-nqa-admin-test-icmp-echo] destination ip 10.2.1.4 
[SwitchA-nqa-admin-test-icmp-echo] next-hop 10.1.1.2 
# Configure the test frequency as 100 ms. 
[SwitchA-nqa-admin-test-icmp-echo] frequency 100 
# Configure reaction entry 1, specifying that five consecutive probe failures trigger the track 
module. 
[SwitchA-nqa-admin-test-icmp-echo] reaction 1 checked-element probe-fail 
threshold-type consecutive 5 action-type trigger-only 
[SwitchA-nqa-admin-test-icmp-echo] quit 
# Start the NQA test. 
[SwitchA] nqa schedule admin test start-time now lifetime forever 
# Configure track entry 1, and associate it with reaction entry 1 of the NQA test group (with the 
administrator admin, and the operation tag test). 
[SwitchA] track 1 nqa entry admin test reaction 1 
3.  Configure Switch B: 
# Configure a static route to 30.1.1.0/24, with the address of the next hop as 10.2.1.4. 
<SwitchB> system-view 
[SwitchB] ip route-static 30.1.1.0 24 10.2.1.4 
# Configure a static route to 20.1.1.0/24, with the address of the next hop as 10.1.1.1. 
[SwitchB] ip route-static 20.1.1.0 24 10.1.1.1 
4.  Configure Switch C: 
# Configure a static route to 30.1.1.0/24, with the address of the next hop as 10.4.1.4. 
<SwitchC> system-view 
[SwitchC] ip route-static 30.1.1.0 24 10.4.1.4 
# Configure a static route to 20.1.1.0/24, with the address of the next hop as 10.3.1.1. 
[SwitchC] ip route-static 20.1.1.0 24 10.3.1.1 
5.  Configure Switch D: 
# Configure a static route to 20.1.1.0/24, with the address of the next hop as 10.2.1.2 and the 
default priority 60. This static route is associated with track entry 1. 
<SwitchD> system-view 
[SwitchD] ip route-static 20.1.1.0 24 10.2.1.2 track 1 
# Configure a static route to 20.1.1.0/24, with the address of the next hop as 10.4.1.3 and the 
priority 80. 
[SwitchD] ip route-static 20.1.1.0 24 10.4.1.3 preference 80 
# Configure a static route to 10.1.1.1, with the address of the next hop as 10.2.1.2. 
[SwitchD] ip route-static 10.1.1.1 24 10.2.1.2 
# Create an NQA test group with the administrator admin and the operation tag test. 
[SwitchD] nqa entry admin test 
# Configure the test type as ICMP-echo. 
[SwitchD-nqa-admin-test] type icmp-echo 
# Configure the destination address of the test as 10.1.1.1 and the next hop address as 10.2.1.2 
to check the connectivity of the path from Switch D to Switch B and then to Switch A through NQA. 
[SwitchD-nqa-admin-test-icmp-echo] destination ip 10.1.1.1 
[SwitchD-nqa-admin-test-icmp-echo] next-hop 10.2.1.2 
# Configure the test frequency as 100 ms.