Detected DoS attack. DoS Type: portscan

[dtng0328]

Hello all the Alcatel Expert here,

We just replaced the 10K switch with OS6900-C32 switch, and all of the sudden we're flooded with DoS Type: portscan alerts from the switch. The alert shows that it being portscan attack from our own Windows 10 / Chromebook devices.
______________________________________________________

show ip dos statistics

DoS type Attacks detected
----------------------------------+--------------------------
port scan 3917
ping of death 0
______________________________________________________

I don't want to disable the port scan but haven't been able to find the way to exclude our own devices from the DoS config.

I would really appreciated from the expert here can help me with this issue? Is there a command that I can clear the statistic?


Thanks,

D.Nguyen