R3166-R3206-HP High-End Firewalls Network Management Command Reference-6PW101

Table Of Contents
18
unicast-suppression
Syntax
unicast-suppression ratio
undo unicast-suppression
View
Layer 2 Ethernet interface view, Layer 2 Ethernet subinterface view
Default level
2: System level
Parameters
ratio: Sets the unknown unicast suppression threshold as a percentage of the transmission capability of
the Ethernet interface, ranging from 1 to 100. The smaller the percentage, the less unknown unicast traffic
is allowed to pass through.
Description
Use the unicast-suppression command to set the unknown unicast suppression threshold on an Ethernet
interface or subinterface.
Use the undo unicast-suppression command to restore the default.
By default, Ethernet interfaces do not suppress unknown unicast traffic.
When unknown unicast traffic exceeds the threshold you configure, the system discards unknown unicast
packets until the unknown unicast traffic drops below the threshold.
Examples
# Set the unknown unicast threshold to 20% on GigabitEthernet 0/3.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/3
[Sysname-GigabitEthernet0/3] unicast-suppression 20
# Set the unknown unicast threshold to 20% on subinterface GigabitEthernet 0/3.1.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/3.1
[Sysname-GigabitEthernet0/3.1] unicast-suppression 20
Layer 3 Ethernet interface and subinterface
configuration commands
loopback
Syntax
loopback { external | internal }
undo loopback
View
Ethernet interface view