D-Link xStack DGS-3426 User Manual - page 61
xStack DGS-3400 Series Fast Ethernet Switch
To configure the advanced settings for Safeguard Engine, click the Advanced Settings button to view the following menu.
Figure 6- 21. Safeguard Engine (Advanced) Settings menu
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 mechanism is enabled. Once the CPU utilization reaches this
percentage level, the Switch will 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 leaves the Safeguard Engine 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
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:
Fuzzy – If selected, this function will instruct the Switch to minimize the IP
and ARP traffic flow to the CPU by dynamically allotting an even bandwidth to
all traffic flows.
Strict – If selected, this function will stop accepting all ARP packets not
intended for the Switch, and will stop receiving all unnecessary broadcast IP
packets, until the storm has subsided.
The default setting is Fuzzy mode.
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