Enabling Oam Loopback Testing; Displaying And Maintaining Ethernet Oam Configuration - H3C S5120-EI Series Operation Manual

Enabling OAM Loopback Testing

Follow these steps to enable Ethernet OAM loopback testing:
To do...
Enter system view
Enter Ethernet port view
Enable Ethernet OAM loopback
testing
Ethernet OAM loopback testing is available only after the Ethernet OAM connection is established
and can be performed only by the Ethernet OAM entities operating in active Ethernet OAM mode.
Loopback testing is available only on full-duplex links that support remote loopback at both ends.
Ethernet OAM loopback testing needs the support of the peer hardware.
Enabling Ethernet OAM loopback testing interrupts data communications. After Ethernet OAM
loopback testing is disabled, all the ports involved will shut down and then come up. Ethernet OAM
loopback testing is disabled when you execute the undo oam enable command to disable
Ethernet OAM, when you execute the undo oam loopback command to disable Ethernet OAM
loopback testing, or when the Ethernet OAM connection times out.
Ethernet OAM loopback testing is only applicable to individual links. It is not applicable to link
aggregation member ports. In addition, you cannot assign ports where Ethernet OAM loopback
testing is being performed to link aggregation groups. For more information about link aggregation
groups, refer to Link Aggregation Configuration in the Access Volume.
Enabling internal loopback test on a port in remote loopback test can terminate the remote
loopback test. For more information about loopback test, refer to Ethernet Interface Configuration
in the Access Volume.

Displaying and Maintaining Ethernet OAM Configuration

Display global Ethernet OAM configuration
Display the statistics on critical events after
an Ethernet OAM connection is
established
Display the statistics on Ethernet OAM link
error events after an Ethernet OAM
connection is established or after you clear
the statistics
Display the information about an Ethernet
OAM connection
Use the command...
System-view
interface interface-type
interface-number
oam loopback
To do...
—
—
Required
Disabled by default.
Use the command...
display oam configuration
display oam critical-event [ interface
interface-type interface-number ]
display oam link-event { local | remote }
[ interface interface-type
interface-number ]
display oam { local | remote } [ interface
interface-type interface-number ]
1-8
Remarks
Remarks
Available
in any
view