DGS-1510/ME Series Metro Ethernet Switch CLI Reference Guide
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Chapter 62
Safeguard Engine Command List
config safeguard_engine
{state [enable | disable] | utilization {rising <20-100> | falling <20-100>} | trap_log
[enable | disable] | mode [strict | fuzzy]}
show safeguard_engine
62-1
config safeguard_engine
Description
This command is used to configure the CPU protection control for the system.
Format
config safeguard_engine {state [enable | disable] | utilization {rising <20-100> | falling <20-100>} | trap_log
[enable | disable] | mode [strict | fuzzy]}
Parameters
state
- (Optional) Specifies to configure CPU protection state to enable or disable.
enable
- Specifies that CPU protection will be enabled.
disable
- Specifies that CPU protection will be enabled.
utilization
- (Optional) Specifies the CPU protection threshold.
rising
- Specifies utilization rising threshold , the range is between 20%-100% , if the CPU utilization is over
the rising threshold, the Switch enters exhausted mode.
<20-100>
- Enter the utilization rising value here. This value must be between 20 and 100.
falling
- Specifies utilization falling threshold , the range is between 20%-100% , if the CPU utilization is lower
than the falling threshold, the Switch enters normal mode.
<20-100>
- Enter the utilization falling value here. This value must be between 20 and 100.
trap_log
- (Optional) Specifies the state of CPU protection related trap/log mechanism to be enabled or disabled.
enable
- Specifies that the CPU protection trap or log mechanism will be enabled. When enabled, trap and log
will be active while CPU protection current mode changed.
disable
- Specifies that the CPU protection trap or log mechanism will be disabled. When disabled, current
mode change will not trigger trap and log events.
mode
- (Optional) Specifies to determine the controlling method of broadcast traffic. Here are two modes (strict
and fuzzy).
strict
- Specifies as the strict mode. The Switch will stop receiving all ‘IP broadcast’ packets, packets from the
untrusted IP address and reduce the bandwidth of ‘ARP not to me’ packets (the protocol address of the
target in ARP packet is the Switch itself) to the Switch. That means that no matter what the reasons are
that cause high CPU utilization (may not be caused by an ARP storm), the Switch reluctantly processes the
specified traffic, mentioned previously in the Exhausted mode.
fuzzy
- Specifies as the fuzzy mode. The Switch will adjust the bandwidth dynamically depending on some
reasonable algorithm.
Restrictions
Only Administrators, Operators and Power-Users can issue this command.
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