xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch User Manual
Figure 6- 86. Safeguard Engine Settings window
To configure, set the following parameters and click Apply.
Parameter Description
Safeguard Engine Settings
State
Use the pull-down menu to globally enable or disable the Safeguard Engine settings for the
Switch.
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.
(For line cards DES-6505, DES-6507, DES-6509 and DES-6512, the Safeguard Engine will
always be Strict mode regardless of configuration, due to a chipset limitation.)
The default setting is Fuzzy mode.
CPU Utilization
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 Safeguard Engine state, based on the parameters provided in this window.
Falling Threshold
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.
Safeguard
Engine Status
This is a read-only field that will state the current Safeguard Engine mode of the Switch. This
field may read “normal mode” or “exhausted mode”.
Click
Apply
to implement changes made to this window.
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