NFA流量显示有负值
NFA显示的流量不正确，甚至显示负值
经过查看Wireshark抓取的数据包，发现表示流量的字段为Permanet...
另外，用户的配置为
flow record dtsr
match ipv4 tos
match ipv4 protocol
match ipv4 source address
match ipv4 destination address
match transport source-port
match transport destination-port
collect transport tcp flags
collect interface input
collect counter bytes permanent
collect counter packets permanent
collect timestamp sys-uptime first
collect timestamp sys-uptime last
!
把collect counter bytes permanet 改为collect counter bytes之后，并请使用以下命令清除cache之后，显示正常
clear flow monitor name dtsm