D-Link DES-1228/ME Reference Manual page 235

config safeguard_engine
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To configure the safeguard engine for the Switch:
DES-1228/ME:5#config safeguard_engine state enable utilization rising 45
Command: config safeguard_engine state enable utilization rising 45
Success.
DES-1228/ME:5#
show safeguard_engine
Purpose
Syntax
Description
Parameters
Restrictions
DES-1228/ME Metro Ethernet Managed Switch CLI Reference Guide
Used to configure ARP storm control for system.
{state [enable | disable] | utilization {rising <value 20-100> | falling <value 20-
100>} (1)| 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.
cpu_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
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 [strict | fuzzy] – Toggle between strict and fuzzy mode.
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 level, Operator level or Power User level users can issue
this command.
Used to display current Safeguard Engine settings.
show safeguard_engine
This command is used to list the current status and type of the Safeguard
Engine settings currently configured.
None.
None.
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