D-Link DES-3028, User Manual

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DES-3028 DES-3028P DES-3028G DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Figure 6- 29. Safeguard Engine Settings window – CPU Utilization Settings
To set the Safeguard Engine for the Switch, complete the following fields:
Parameter Description
56
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.