F100-C-G2 NQA探测结果返回异常

NQA配置如下

nqa template icmp 健康检测-ping-电信

destination ip 192.168.110.57

next-hop ip 10.10.10.1

reaction trigger per-probe

source ip 172.200.10.2

手动ping测试结果

<Firewall-master>ping -a 172.200.10.2 192.168.110.57

56 bytes from 192.168.110.57: icmp_seq=0 ttl=254 time=27.799 ms

56 bytes from 192.168.110.57: icmp_seq=1 ttl=254 time=27.616 ms

56 bytes from 192.168.110.57: icmp_seq=2 ttl=254 time=27.720 ms

56 bytes from 192.168.110.57: icmp_seq=3 ttl=254 time=27.568 ms

56 bytes from 192.168.110.57: icmp_seq=4 ttl=254 time=27.602 ms

但是debug  NQA却显示：

5 18:37:34:359 2018 Firewall-master NQA/7/Event: NQA entry (健康检测-ping-电信-instance12aab6170?): Probe timed out.

请大神解答，很急，谢谢！！！