R3204P16-HP Load Balancing Module Network Management Configuration Guide-6PW101

9
NOTE:
•
You can configure IP-related settings on an Ethernet subinterface. For more information, see the chapter “IP
addressing configuration.”
• For the local and remote Ethernet subinterfaces to transmit traffic correctly, configure them with the same
subinterface number and VLAN ID.
3. Configuring loopback testing on an Ethernet interface
If an Ethernet interface does not work normally, you can enable loopback testing on it to identify the
problem. There are two types of loopback testing:
• Internal loopback testing, which tests all on-chip functions related to Ethernet interfaces.
• External loopback testing, which tests the hardware of Ethernet interfaces. To perform external
loopback testing on an Ethernet interface, connect a loopback plug to the Ethernet interface. Test
packets are sent out of the interface, and are expected to loop over the plug and back to the
interface. If the interface fails to receive any test packet, the hardware of the interface is faulty.
An Ethernet interface in a loopback test does not forward data traffic.
Follow these steps to enable loopback testing on an Ethernet interface:
To do… Use the command… Remarks
Enter system view system-view —
Enter Ethernet interface view
interface interface-type
interface-number
—
Enable loopback testing loopback { external | internal }
Optional
Disabled by default
NOTE:
•
On an interface that is physically down, you can perform only internal loopback testing. On an interface
administratively shut down, you can perform neither internal nor external loopback testing.
• The speed, duplex, mdi, and shutdown commands are unavailable during loopback testing.
• During loopback testing, an Ethernet interface works in full-duplex mode. When you disable loopback testing,
the duplex configuration of the interface restores.
4. Configuring the operating mode of an Ethernet interface
Depending on the layer at which the LB module processes received data packets, Ethernet interfaces may
operate in bridge or route mode. In bridge mode, an Ethernet interface forwards traffic based on
hardware addresses, and you cannot configure an IP address for the Ethernet interface. In route mode,
an Ethernet interface forwards traffic based on IP routes. You can perform the steps in this section to
change the operating mode of an Ethernet interface.
Follow these steps to change the operating mode of an Ethernet interface:
To do… Use the command… Remarks
Enter system view system-view —
Enter Ethernet interface view
interface interface-type
interface-number
—
Change the operating mode of the
Ethernet interface
port link-mode { bridge | route } Required