This message will be generated when over 300 packets per second are received by the SNMP service.

If you want to change this behaviour, there are 2 configurable fields in the [SNMP] section of uLinux.conf:

EnableDetectDDoS
MaxPacketPerSecond

The default value of EnableDetectDDoS is TRUE.
The default value of MaxPacketPerSecond is 300.

If you want to disable the DoS detection, then run the below command:

# setcfg SNMP EnableDetectDDoS FALSE

If you want to increase the maximum number of packets, then run the below command (XXX is the maximum packets per second):

# setcfg SNMP MaxPacketPerSecond XXX

Remember to restart SNMP after changing these settings.

# /etc/init.d/snmp restart