Safeguard Engine Settings - D-Link xStack User Manual

xStack
NOTICE: When Safeguard Engine is enabled, the Switch will allot bandwidth to various
traffic flows (ARP, IP) using the FFP (Fast Filter Processor) metering table to control the
CPU utilization and limit traffic. This may limit the speed of routing traffic over the network.

Safeguard Engine Settings

This window is used to enable Safeguard Engine or configure advanced Safeguard Engine settings for the Switch.
To view this window, click Administration > Safeguard Engine > Safeguard Engine Settings, as shown below:
To enable the Safeguard Engine option, select Enabled with the drop-down State menu and click the Apply button.
To configure the advanced settings for the Safeguard Engine, click the CPU Utilization Settings button to view the following
window.
To configure, set the following parameters and click Apply.
Parameter Description
State Use the pull-down menu to globally enable or disable Safeguard Engine settings for the Switch.
Rising Used to configure the acceptable level of CPU utilization before the Safeguard Engine
Threshold (20-%- mechanism is enabled. Once the CPU utilization reaches this percentage level, the Switch will
100%) move into Safeguard Engine state, based on the parameters provided in this window.
Falling Used to configure the acceptable level of CPU utilization as a percentage, where the Switch
Threshold (20%- leaves the Safeguard Engine state and returns to normal mode.
100%)
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 Used to select the type of Safeguard Engine to be activated by the Switch when the CPU
utilization reaches a high rate. The user may select:
flow to the CPU by dynamically allotting an even bandwidth to all traffic flows.
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DGS-3400 Series Layer 2 Gigabit Ethernet Managed Switch
st
Figure 6 - 55 1 Safeguard Engine Settings window
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Figure 6 - 56 2 Safeguard Engine Settings window
Fuzzy – If selected, this function will instruct the Switch to minimize the IP and ARP traffic
Strict – If selected, this function will stop accepting all ARP packets not intended for the
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