F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Command Reference-6PW100

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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
Layer 3 Ethernet interface and subinterface
configuration commands
mtu
Use mtu to set the MTU for an Ethernet interface or subinterface.
Use undo mtu to restore the default.
Syntax
mtu size
undo mtu
Default
The MTU of an Ethernet interface or subinterface is 1500 bytes.
Views
Layer 3 Ethernet interface view, Layer 3 Ethernet subinterface view
Default command level
2: System level
Parameters
size: Sets the maximum transmission unit (MTU) in bytes. The range varies by interface type.
Examples
# Set the MTU to 1430 bytes for the Layer 3 Ethernet interface GigabitEthernet 0/1.
<Sysname> system-view
[Sysname] interface gigabitethernet 0/1
[Sysname-GigabitEthernet0/1] mtu 1430