HP VPN Firewall Appliances Network Management Command Reference

# Set the multicast threshold to 20% on Ethernet subinterface GigabitEthernet 0/1.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/1.1

[Sysname-GigabitEthernet0/1.1] multicast-suppression 20

unicast-suppression

Use unicast-suppression to set the unknown unicast suppression threshold on an Ethernet interface or

subinterface.

Use undo unicast-suppression to restore the default.

Syntax

unicast-suppression ratio

undo unicast-suppression

Default

Ethernet interfaces do not suppress unknown unicast traffic.

Views

Layer 2 Ethernet interface view, Layer 2 Ethernet subinterface view

Default command level

2: System level

Parameters

ratio: Sets the unknown unicast suppression threshold as a percentage of the maximum interface rate,

ranging from 1 to 100. The smaller the percentage, the less unknown unicast traffic is allowed to be

received.

Usage guidelines

In Ethernet interface or subinterface view, the configuration will take effect only on the interface or

subinterface.

When the received unknown unicast traffic exceeds the threshold, the system discards unknown unicast

packets until unknown unicast traffic drops below the threshold.

If you set different unknown unicast suppression thresholds in Ethernet interface view multiple times, the

most recent configuration takes effect.

Examples

# Set the unknown unicast threshold to 20% on GigabitEthernet 0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/1

[Sysname-GigabitEthernet0/1] unicast-suppression 20

# Set the unknown unicast threshold to 20% on Ethernet subinterface GigabitEthernet 0/1.1.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/1.1

[Sysname-GigabitEthernet0/1.1] unicast-suppression 20