D-Link xStack DES-3528 Series Cli Reference Manual page 285

xStack® DES-3528/DES-3552 Series Layer 2 Managed Stackable Fast Ethernet Switch CLI Reference Guide
config safeguard_engine
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To configure the safeguard engine for the Switch:
DES-3528:admin# config safeguard_engine state enable utilization rising 45
Command: config safeguard_engine state enable utilization rising 45
Success.
DES-3528:admin#
show safeguard_engine
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To display the safeguard engine status:
DES-3528:admin# show safeguard_engine
Command: show safeguard_engine
Safeguard Engine State
Safeguard Engine Current Status
=======================================================
Used to configure ARP storm control for system.
config safeguard_engine { state [enable | disable] | utilization { rising <value 20-100> |
falling <value 20-100>} | trap_log [enable | disable] | mode [ strict | fuzzy] }(1)
This command is used to configure Safeguard Engine to minimize the effects of an ARP
storm.
state [enable | disable] – Select the running state of the Safeguard Engine function as enable
or disable.
utilization – Select this option to trigger the Safeguard Engine function to enable based on
the following determinates:
rising <value 20-100> – The user can set a percentage value of the rising CPU utilization
which will trigger the Safeguard Engine function. Once the CPU utilization rises to this
percentage, the Safeguard Engine mechanism will initiate.
falling <value 20-100> – The user can set a percentage value of the falling CPU utilization
which will trigger the Safeguard Engine function to cease. Once the CPU utilization falls to
this percentage, the Safeguard Engine mechanism will shut down.
trap_log [enable | disable] – Choose whether to enable or disable the
messages to the device's SNMP agent and Switch log once the Safeguard Engine has been
activated by a high CPU utilization rate.
mode [ strict | fuzzy] – 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:
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.
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.
Only Administrator and Operator and Power-User-level users can issue this command.
Used to display current Safeguard Engine settings.
show safeguard_engine
This will list the current status and type of the Safeguard Engine settings currently
configured.
None.
None.
:
:
Disabled
Normal Mode
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