Dasan V5808 - System Flood Guard

UMN:CLI User Manual
V5808
388
Command
Mode
Description
cpu-flood-guard PORTS timer
<10-3600>
Bridge
Enables the blocking option.
PORTS: port number
10-3600: blocking time (unit: second)
cpu-flood-guard PORTS unblock
Forces the state of a blocked port to change to
NORMAL.
To display the configured CPU flood guard, use the following command.
Command
Mode
Description
show cpu-flood-guard
Enable
Global
Bridge
Shows the configured CPU flood guard.
8.9.3 System Flood Guard
A packet flooding occurs unexpectedly when a large number of broadcast or multicast
packets are received on a port, which may cause unnecessary network congestion.
V5808 provides the system flood guard function that controls traffic for a port by given
threshold. If the number of incoming packets exceeds the threshold, the system
generates a syslog message/SNMP trap or discards those packets.
To enable/disable the system flood guard, use the following command.
Command
Mode
Description
system-flood-guard {enable |
disable}
Bridge
Enables/disables the system flood guard.
To specify the number of packets per second according to the type of packets, which is
transmitted to a specific port, use the following command.
Command
Mode
Description
system-flood-guard PORTS
{ multicast| broadcast | both} <1-
2147483647> block
Bridge
Specifies the number of incoming packets to a port per
second according to the packets’ type. Discards the
packets which exceeds given threshold.
PORTS: port number
1-2147483647: the number of packets per 1 second
no system-flood-guard [PORTS]
Deletes a specified number of packets.
To generate the trap message when the number of incoming packets is less than a
configured value, use the following command.
Command
Mode
Description
system-flood-guard PORTS
{ multicast| broadcast | both} <1-
2147483647> unblock
Bridge
Enables the system to display a trap message when
the number of incoming packets per second is less
than the threshold.
PORTS: port number