H3C S5820X-28C nqa+track静态路由不生效

设备型号：H3C S5820X-28C

软件版本：s5800_5820x-cmw520-r1808p12

问题：NQA+Track绑定静态路由不生效

设备型号：H3C S5820X-28C

软件版本：s5800_5820x-cmw520-r1808p12

问题：NQA+Track绑定静态路由不生效

详细配置：

nqa entry admin test

 type icmp-echo

  destination ip 10.2.1.254

  frequency 100

  history-record enable

  next-hop 172.16.20.1

  reaction 1 checked-element probe-fail threshold-type consecutive 5 action-type trigger-only

  source ip 172.16.20.2

#

track 1 nqa entry admin test reaction 1

#

 nqa schedule admin test start-time now lifetime forever

#

 ip route-static 0.0.0.0 0.0.0.0 172.16.20.1 track 1

 ip route-static 0.0.0.0 0.0.0.0 172.16.21.1 preference 80

#

查看track信息

display track all

Track ID: 1

  Status: Positive

  Duration: 0 days 0 hours 9 minutes 0 seconds

  Notification delay: Positive 0, Negative 0 (in seconds)

  Reference object:

    NQA entry: admin test

    Reaction: 1

##

display nqa result

  NQA entry (admin admin, tag test) test results:

    Destination IP address: 10.2.1.254

      Send operation times: 1              Receive response times: 1

      Min/Max/Average round trip time: 2/2/2

      Square-Sum of round trip time: 4

      Last succeeded probe time: 2000-08-07 22:15:14.1

    Extended results:

      Packet loss in test: 0%

      Failures due to timeout: 0

      Failures due to disconnect: 0

      Failures due to no connection: 0

      Failures due to sequence error: 0

      Failures due to internal error: 0

      Failures due to other errors: 0

      Packet(s) arrived late: 0

#

display nqa history 

  NQA entry (admin admin, tag test) history record(s):

    Index      Response     Status           Time

    5932       3            Succeeded        2000-08-07 22:15:19.5

    5931       3            Succeeded        2000-08-07 22:15:19.4

    5930       3            Succeeded        2000-08-07 22:15:19.3

    5929       3            Succeeded        2000-08-07 22:15:19.2

    5928       2            Succeeded        2000-08-07 22:15:19.1

    5927       3            Succeeded        2000-08-07 22:15:19.0

    5926       2            Succeeded        2000-08-07 22:15:18.9

    5925       2            Succeeded        2000-08-07 22:15:18.8

各种信息都有，端口对端线路，静态路由不切换；请问知道什么原因吗？求解....