1. 1.配置流统策略
    2. #
    3. acl advanced 3998
    4.  rule 0 permit ip source {地址}
    5. #
    6. traffic classifier liutong_test
    7.  if-match acl 3998
    8. #
    9. traffic behavior liutong_test
    10.  accounting packet
    11. #
    12. qos policy liutong_test
    13.  classifier liutong_test behavior liutong_test
    14. #
    16. 2.在上联口 入方向 做流统
    17. interface Ten-GigabitEthernet1/0/49
    18.  qos apply policy liutong_test inbound 
    20. 3.下联口 出方向 做流统
    21. interface GigabitEthernet1/0/27
    22.  qos apply policy liutong_test outbound
    24. 4.查看是否有收到上游CME的组播报文/是否有向下联服务器发送组播报文
    25. display qos policy interface Ten-GigabitEthernet1/0/49
    26. display qos policy interface GigabitEthernet1/0/27