Chapter 10 Safeguard Engine Commands - D-Link xStack DGS-3420 Series Reference Manual

xStack® DGS-3420 Series Layer 2 Managed Stackable Gigabit Switch CLI Reference Guide
Chapter 10
config safeguard_engine {state [enable | disable] | utilization {rising <value 20-100> | falling <value
20-100>}(1) | trap_log [enable | disable] | mode [strict | fuzzy]}(1)
show safeguard_engine
10-1 config safeguard_engine
Description
This command is used to configure the safeguard engine for the system.
Format
config safeguard_engine {state [enable | disable] | utilization {rising <value 20-100> | falling
<value 20-100>}(1) | trap_log [enable | disable] | mode [strict | fuzzy]}(1)
Parameters
state - (Optional) Configure the safeguard engine state to enable or disable.
enable - Configure the safeguard engine state to enable.
disable - Configure the safeguard engine state to disable.
utilization - (Optional) Configure the safeguard engine threshold.
rising - (Optional) Configure the utilization rising threshold. The range is between 20%-100%. If
the CPU utilization is over the rising threshold, the switch enters exhausted mode.
<value 20-100> - Configure the utilization rising threshold. The range is between 20%-100%.
falling - (Optional) Configure the utilization falling threshold. The range is between 20%-100%. If
the CPU utilization is lower than the falling threshold, the switch enters normal mode.
<value 20-100> - Configure the utilization falling threshold. The range is between 20%-100%.
If the CPU utilization is lower than the falling threshold, the switch enters normal mode.
trap_log - (Optional) Configure the state of the safeguard engine related to the trap/log mechanism
to enable or disable.
enable - If set to enable, trap and log will be active while the safeguard engine current mode is
changed.
disable - If set to disable, the current mode change will not trigger trap and log events.
mode - (Optional) Determines the controlling method of broadcast traffic. There are two modes, strict
and fuzzy.
strict - In strict, the switch will stop receiving all 'ARP not to me' packets (the protocol address of
the target in the ARP packet is the Switch itself). That means no matter what reasons cause
the high CPU utilization (may not be caused by ARP storm), the Switch reluctantly processes
any 'ARP not to me' packets in exhausted mode.
fuzzy - In fuzzy mode, the switch will adjust the bandwidth dynamically depending on some
reasonable algorithm.
Safeguard Engine
Commands
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