H3C Technologies H3C SecPath F1000-E - Manual (Page 169)

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Blackhole-type inline Layer 2 forwarding configuration
example at the CLI
Network requirements
Configure blackhole-type inline Layer 2 forwarding on GigabitEthernet 0/1. Then packets received on
GigabitEthernet 0/1 are directly dropped.
Configuration procedure
# Create blackhole-type inline Layer 2 forwarding entry 1.
<Sysname> system-view
[Sysname] inline-interfaces 1 blackhole
# Assign GigabitEthernet 0/1 to blackhole-type inline Layer 2 forwarding entry 1.
[Sysname] interface GigabitEthernet 0/1
[Sysname-GigabitEthernet0/1] port inline-interfaces 1
Configuration guidelines
When you configure inline forwarding, follow these guidelines:
• Inline forwarding is applicable to Layer 2 Ethernet interfaces and subinterfaces.
• If you assign a subinterface to an inline forwarding entry, note the following:
{
To make the entry take effect, the interface must be assigned to the VLAN of which the ID is used
as the subinterface number. For example, if the subinterface GigabitEthernet 0/1.2 is assigned
to an inline forwarding entry, the interface GigabitEthernet 0/1 must be assigned to VLAN 2 so
that the inline forwarding can be implemented.
{
If an interface and its subinterface are assigned to different inline forwarding entries, the
forwarding entry with the main interface takes precedence. For example, the interfaces
GigabitEthernet 0/1 and GigabitEthernet 0/2 are assigned to one inline forwarding entry,
and the subinterfaces GigabitEthernet 0/1.2 and GigabitEthernet 0/2.3 are assigned to
another forwarding entry; then the data received from GigabitEthernet 0/1 is forwarded
through the interface GigabitEthernet 0/2, and vise versa.
Viewing frame forwarding statistics
Overview
The frame forwarding statistics module allows you to display the frame forwarding statistics of all the
Layer 2 interfaces on the firewall.
Configuration procedure
Select Network > Statistics > L2 Statistics from the navigation tree to enter the page for displaying frame
forwarding statistics, as shown in Figure 78 .