I saw this error in the alert of the express 500 : Detected Ping and/or SYN packets at unexpected rate on this port.
Somebody can help me with this problem, because I dont know why this problem occur.
I have this problem too.
Correct Answer by Siddharth Chand... about 6 years 1 month ago
Detected Ping and/or SYN packets at unexpected rate on this port
Explanation: This message only notifies that the switch is receiving more Pings
or SYN packets than expected. The device connected to CE500 switch is generating
the SYN/ICMP packets and if you are not experiencing network disruptions this can
be considered as a notification only. Sometimes if someone is running a 'ping -t'
(continuous ping) and packets hit the interface, one can also see this error.
Hope this helps.