R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

10
Configuring a Layer 2 Ethernet interface or subinterface
Layer 2 Ethernet interface or subinterface configuration task list
Complete these tasks to configure an Ethernet interface or subinterface operating in bridge mode:
Task Remarks
Configuring storm suppression
Optional
Applicable to Layer 2 Ethernet interfaces and Ethernet
subinterfaces
Configuring jumbo frame support
Optional
Applicable to Layer 2 Ethernet interfaces
Configuring the MDI mode for an Ethernet interface
Optional
Applicable to Layer 2 Ethernet interfaces
Configuring storm suppression
You can use the storm suppression function to limit the size of a particular type of traffic (broadcast,
multicast, or unknown unicast traffic) on an Ethernet interface or subinterface. When the broadcast,
multicast, or unknown unicast traffic on the interface exceeds the threshold, the firewall discards packets
until the traffic drops below the threshold, avoiding negative impact on the network.
Follow these steps to set storm suppression thresholds on an Ethernet interface or subinterface:
To do… Use the command…
Remarks
Enter system view system-view —
Enter Ethernet interface or
subinterface view
• Enter Ethernet interface view
interface interface-type
interface-number
• Enter Ethernet subinterface
view
interface interface-type
interface-number.subnumber
Use either command.
Set the broadcast storm
suppression ratio
broadcast-suppression ratio
Optional
By default, broadcast traffic is not
suppressed.
Set the multicast storm suppression
ratio
multicast-suppression ratio
Optional
By default, multicast traffic is not
suppressed.
Set the unknown unicast storm
suppression ratio
unicast-suppression ratio
Optional
By default, unknown unicast traffic
is not suppressed.
Configuring jumbo frame support
An Ethernet interface may receive some frames larger than the standard Ethernet frame size (called
“jumbo frames”) during high-throughput data exchanges such as file transfers. Usually, an Ethernet
interface discards jumbo frames. With jumbo frame support enabled, the interface can process frames
larger than the standard Ethernet frame size yet within the specified parameter range.