D-Link DES-1228/ME, User Manual, Page: 66 / 267

DES-1228/ME Layer 2 Fast Ethernet Managed Switch
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Figure 6- 27. Safeguard Engine Settings window – CPU Utilization Settings
To set the Safeguard Engine for the Switch, complete the following fields:
Parameter Description
State Toggle this field to either Enabled or Disabled for the Safeguard Engine of the Switch.
Rising Threshold Used to configure the acceptable level of CPU utilization before the Safeguard Engine
mechanism is enabled. Once the CPU utilization reaches this percentage level, the Switch
will move into the
Exhausted state.
Falling Threshold Used to configure the acceptable level of CPU utilization as a percentage, where the Switch
leaves the
Exhausted state and returns to normal mode.
Trap/Log Use the pull-down menu to enable or disable the sending of messages to the device’s SNMP
agent and switch log once the Safeguard Engine has been activated by a high CPU utilization
rate.
Mode You can choose between Fuzzy and Strict . In strict mode the Switch will stop receiving all
‘ARP’ packets. That means that whatever reasons have caused the high CPU utilization, the
Switch will reluctantly processes any ’ARP’ packets in exhausted mode. In fuzzy mode, the
Switch will adjust the bandwidth dynamically depending on some reasonable algorithm.
Safeguard Engine
Current Status
Displays the current state of the Safeguard Engine.