H3C Technologies H3C SecBlade FW Cards - Manual (Page 4)

3
Configuring inline Layer 2 forwarding
Follow these steps to configure inline Layer 2 forwarding:
To do… Use the command… Remarks
Enter system view system-view —
Configure an inline
forwarding entry
inline-interfaces id [ blackhole |
reflect ]
Required
Enter Ethernet interface
view interface interface-type
interface-number
—
Assign an interface to the
inline forwarding entry
port inline-interfaces id
Required
By default, the interface does not belong to
any inline forwarding entry.
Two interfaces must be assigned to the
forward-type inline forwarding entry while
one interface is required for the reflect or
blackhole type.
CAUTION:
•
An interface can only belong to one inline forwarding entry, and the last configured port
inline-interfaces
id command on an interface takes effect.
• Subinterfaces can be assigned to inline Layer 2 forwarding entries. To make these entries take effect, the
main interface must be assigned to the VLAN of which the ID is used as the subinterface number. For
example, if subinterface GigabitEthernet 0/1.2 is assigned to an inline forwarding entry, interface
GigabitEthernet 0/1 must be assigned to VLAN 2 so that the inline Layer 2 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, 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 inline forwarding entry; then the data
received from GigabitEthernet 0/1 is forwarded through the interface GigabitEthernet 0/2, and vice
versa.
Displaying and maintaining inline Layer 2 forwarding
To do… Use the command… Remarks
Display inline forwarding
configuration
display inline-interfaces Available in any view
Configuring inter-VLAN Layer 2 forwarding
NOTE:
For the inter-VLAN Layer 2 forwarding commands, see the command reference.