R3721-F3210-F3171-HP High-End Firewalls Network Management Command Reference-6PW101

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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 through.
Description
Use unicast-suppression to set the unknown unicast suppression threshold on an Ethernet interface or
subinterface.
Use undo unicast-suppression 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 0/1.
<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
Layer 3 Ethernet interface and subinterface
configuration commands
mtu
Syntax
mtu size
undo mtu
View
Layer 3 Ethernet interface view, Layer 3 Ethernet subinterface view
Default level
2: System level
Parameters
size: Sets the maximum transmission unit (MTU) in bytes, whose range varies by interface types.
Description
Use mtu to set the MTU for an Ethernet interface or subinterface.
Use undo mtu to restore the default.
By default,